• Rpi considerations

    From Daniel@me@sc1f1dan.com to comp.sys.raspberry-pi on Saturday, June 08, 2024 18:52:41
    From Newsgroup: comp.sys.raspberry-pi

    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the
    deployment of a few rpis. Never used them before and this would be a new venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal
    laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS. Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    Thanks,

    Daniel
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Chris Elvidge@chris@mshome.net to comp.sys.raspberry-pi on Saturday, June 08, 2024 20:54:53
    From Newsgroup: comp.sys.raspberry-pi

    On 08/06/2024 at 19:52, Daniel wrote:
    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the deployment of a few rpis. Never used them before and this would be a new venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal
    laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS.

    You do realise RPi is an ARM machine not an x86(_64) so VMs will also be
    ARM. Kubuntu + ARM doesn't seem to exist.

    Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    Thanks,

    Daniel

    --
    Chris Elvidge, England
    I WILL NOT BURY THE NEW KID

    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Knute Johnson@knute2024@585ranch.com to comp.sys.raspberry-pi on Saturday, June 08, 2024 16:22:24
    From Newsgroup: comp.sys.raspberry-pi

    On 6/8/24 13:52, Daniel wrote:
    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the deployment of a few rpis. Never used them before and this would be a new venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal
    laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS. Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    Thanks,

    Daniel

    I've got a Pi5 8GB with a Pimoroni NVME Base, a 250GB NVME SSD and a RaspberryPi Active Cooler. RPi has a M.2 HAT now that would work fine
    too but I don't know if the Active Cooler will work with it. The active cooler is almost silent and unless I do something really CPU intensive
    it never speeds up to a speed where I can hear it (that could partially
    be because of 40 years of jet engines too :-)

    It is running RPi OS bookworm. It is a light weight GUI similar to XFCE
    that I have on my desktop. It's really pretty snappy, much better than
    a Pi4. You can run Wayland or X11 if it matters to you.

    Not sure why you would want a VM without multiple OSs installed? In any
    case if I want a full screen command line it is just <CTRL><ALT>F1 and
    the screen switches. You can set it up to boot into the command line if
    you want and then start the windowing system if you need it.

    The Pi5 is almost to the point of really being a desktop replacement.
    Maybe when the Pi6 comes out.
    --

    Knute Johnson

    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From =?UTF-8?Q?Bj=C3=B6rn_Lundin?=@bnl@nowhere.com to comp.sys.raspberry-pi on Saturday, June 08, 2024 23:33:54
    From Newsgroup: comp.sys.raspberry-pi

    On 2024-06-08 21:54, Chris Elvidge wrote:
    On 08/06/2024 at 19:52, Daniel wrote:
    Hey guys
    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop
    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS.

    You do realise RPi is an ARM machine not an x86(_64) so VMs will also be ARM. Kubuntu + ARM doesn't seem to exist.


    if OP needs an x64 intel compatible - then look at ebay.
    And look for thin clients - usually fanless like this one
    It is a

    ThinClient Fujitsu Futro S930 AMD Quad Core GX-424CC 2.4GHz 8GB 16GB +
    Power Supply



    <https://www.ebay.co.uk/itm/355677810197?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20231107084023%26meid%3D30156f723fe444b7abff617fccf0d11b%26pid%3D101875%26rk%3D2%26rkt%3D4%26sd%3D305597868976%26itm%3D355677810197%26pmt%3D1%26noa%3D0%26pg%3D4429486%26algv%3DSimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V2V4ItemNrtInQueryAndCassiniVisualRankerAndBertRecallWithVMEV3EmbeddedAuctionsCPCAutoWithCassiniEmbRecallManual%26brand%3DFujitsu&_trksid=p4429486.c101875.m1851&itmprp=cksum%3A35567781019730156f723fe444b7abff617fccf0d11b%7Cenc%3AAQAJAAABgP9d%252BMZSXlztIfYFu3kI%252B7ft0VcQix7rTrUVdiJwc2upzwLfM%252B2UEqu0ZqdXqu2qWe6up6s9MSEY%252BWikIwEh4xLkizL%252BG%252Fyhg6cdW4xfkbb75erVQBYYISNxGN1au%252BE0eJ778JYYSAyLJRupNiZky3B2UHpMsaEp7JRgW9fuueOszPlG9eCPE4mSzJx4EejjZE0v1xx3s4HgKujjhEB3s6m7f3JYMsVIEKQlMrlzawCNG9UrWfx8jNR6D80pbqibnApqtpAjVEH0WCpxHeNLc6uPooeY8t3lsRdXjiecKZG%252Bv7iOFtY9LI%252Bl76efSFrefTmSXIsTU6qxoc6EjSSK4v8E6i16CFXuSeHEHW2UeCfd054HXMSJS3GkahVzwimh6C%252BuWQXYfgUd2XcZ28jJmVOzvgtoKDcWJcOxXU%252BQee2dfYpwt0OvOylXdeo4%252FQLKGkSbLa3jOSHd8eLs54dKTEwC3Ft6rIMyL7tLY%252Fx%252B%252F3O87A6EDZPnRcvRGz9mWSoSsg%253D%253D%7Campid%3APL_CLK%7Cclp%3A4429486&epid=18066193994&itmmeta=01HZWVSKYWQY13CSGDBHADGNNT>

    some sites compare cpu, and this is one example

    <https://www.cpu-world.com/Compare/436/AMD_G-Series_GX-424CC_vs_Intel_Core_i3_i3-4130T.html>



    No - I am not the seller, but I like the thin clients.
    I sometimes need a low power fanless intel machine, and these do the
    trick for me.
    --
    /Björn

    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Daniel@me@sc1f1dan.com to comp.sys.raspberry-pi on Sunday, June 09, 2024 02:48:22
    From Newsgroup: comp.sys.raspberry-pi

    Chris Elvidge <chris@mshome.net> writes:

    On 08/06/2024 at 19:52, Daniel wrote:
    Hey guys
    In an effort to simplify the computing setup in my den -
    historically
    the hottest room in the house - the current consideration is in the
    deployment of a few rpis. Never used them before and this would be a new
    venture.
    My current home-computing habits are 90% on the linux CLI. My
    perosnal
    laptop runs a debian install without a windowing system, which suits
    me.
    My desktop workhorse, in the den, is a very old first gen Intel I3
    with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop
    computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.
    Current xwindows use cases: libreoffice, qt designer, light browser
    (no
    streaming), light printing.
    What I'm considering:
    A headless Rpi4 as a VM server and setup a VM with the latetest
    Kubuntu
    LTS.

    You do realise RPi is an ARM machine not an x86(_64) so VMs will also
    be ARM. Kubuntu + ARM doesn't seem to exist.

    No I didn't and thanks for alerting me on that. I thought the VM's could specify architecture. I guess not.

    I'll have to re-evaluate.

    Thanks again.


    Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.
    My desktop PC would be replaced by a Rpi4 running Debian CLI (like
    my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but
    inconvenient. Too bad, because the 400 is quite compelling for my uses.
    In your collective experience, would this provide sufficient
    stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.
    Thanks,
    Daniel

    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Joerg Walther@joerg.walther@magenta.de to comp.sys.raspberry-pi on Sunday, June 09, 2024 11:08:34
    From Newsgroup: comp.sys.raspberry-pi

    Daniel wrote:

    No I didn't and thanks for alerting me on that. I thought the VM's could >specify architecture.

    Actually ARM Docker can run x86 images, but expect it to be sluggish.

    -jw-
    --
    And now for something completely different...
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Chris Green@cl@isbd.net to comp.sys.raspberry-pi on Sunday, June 09, 2024 10:16:39
    From Newsgroup: comp.sys.raspberry-pi

    Daniel <me@sc1f1dan.com> wrote:
    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the deployment of a few rpis. Never used them before and this would be a new venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal
    laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS. Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    I use RPis in various ways but for my desktop and backup machines I
    use Fujitsu Esprimo Q957 and Q557, very small box with PSU and disk
    drives within in, power consumption about 5 watts so down in the same
    sort of area as the Pi.

    I too am almost 100% command line but I do run a GUI, mostly for using
    the web browser.
    --
    Chris Green
    ·
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Chris Green@cl@isbd.net to comp.sys.raspberry-pi on Sunday, June 09, 2024 13:17:31
    From Newsgroup: comp.sys.raspberry-pi

    Chris Green <cl@isbd.net> wrote:
    Daniel <me@sc1f1dan.com> wrote:
    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the deployment of a few rpis. Never used them before and this would be a new venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu LTS. Connect my external HDD and flash drives via a 16 port USB hub to access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    I use RPis in various ways but for my desktop and backup machines I
    use Fujitsu Esprimo Q957 and Q557, very small box with PSU and disk

    Oops, should be Q556!

    drives within in, power consumption about 5 watts so down in the same
    sort of area as the Pi.

    I too am almost 100% command line but I do run a GUI, mostly for using
    the web browser.

    --
    Chris Green
    ·
    --
    Chris Green
    ·
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Daniel@me@sc1f1dan.com to comp.sys.raspberry-pi on Sunday, June 09, 2024 21:02:29
    From Newsgroup: comp.sys.raspberry-pi

    Joerg Walther <joerg.walther@magenta.de> writes:

    Daniel wrote:

    No I didn't and thanks for alerting me on that. I thought the VM's could >>specify architecture.

    Actually ARM Docker can run x86 images, but expect it to be sluggish.

    Debian is home to me and there is an ARM version so I'll likely go that
    route. Still evaluating.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Pancho@Pancho.Jones@proton.me to comp.sys.raspberry-pi on Sunday, June 09, 2024 22:33:05
    From Newsgroup: comp.sys.raspberry-pi

    On 08/06/2024 22:22, Knute Johnson wrote:
    On 6/8/24 13:52, Daniel wrote:
    Hey guys

    In an effort to simplify the computing setup in my den - historically
    the hottest room in the house - the current consideration is in the
    deployment of a few rpis. Never used them before and this would be a new
    venture.

    My current home-computing habits are 90% on the linux CLI. My perosnal
    laptop runs a debian install without a windowing system, which suits
    me.

    My desktop workhorse, in the den, is a very old first gen Intel I3 with
    8gb or ram. When I obtained it, the device was being resold at a mom&pop
    computer shop after it was purchased from a government auction. It had
    been retired after a PC refresh. The thing is showing its age. Initially
    it was running kubuntu, then I transitioned it to Xubuntu. This extended
    its life a few years. But now the machine is showing signs of
    instability. It's connected on a KVM and I switch to my work laptop
    since I"m a permanent remote employee.

    Current xwindows use cases: libreoffice, qt designer, light browser (no
    streaming), light printing.

    What I'm considering:

    A headless Rpi4 as a VM server and setup a VM with the latetest Kubuntu
    LTS. Connect my external HDD and flash drives via a 16 port USB hub to
    access all my files - which I currently do with my workstation.

    My desktop PC would be replaced by a Rpi4 running Debian CLI (like my
    roaming laptop). I considered the Pi400 but I would need a second
    keyboard for my work laptop when I kvm over, not a deal breaker but
    inconvenient. Too bad, because the 400 is quite compelling for my uses.

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case? Or woauld XFCE make more
    sense? I'd consider the Rpi5 if it were fanless, but people on IRC
    insist that it takes a major performance hit without active cooling.

    Thanks,

    Daniel

    I've got a Pi5 8GB with a Pimoroni NVME Base, a 250GB NVME SSD and a RaspberryPi Active Cooler.  RPi has a M.2 HAT now that would work fine
    too but I don't know if the Active Cooler will work with it.  The active cooler is almost silent

    It's not so much "almost silent", as totally silent. It is quite noisy
    when it spins up, it just that, under Pi OS, it doesn't spin up unless
    under extreme load.

    and unless I do something really CPU intensive
    it never speeds up to a speed where I can hear it (that could partially
    be because of 40 years of jet engines too :-)


    Look at it, the reason the fan looks stationary, is because it is
    stationary. It's not a strobe effect. Stick something in it, if you
    don't believe me.

    It is running RPi OS bookworm.  It is a light weight GUI similar to XFCE that I have on my desktop.  It's really pretty snappy, much better than
    a Pi4.  You can run Wayland or X11 if it matters to you.

    Not sure why you would want a VM without multiple OSs installed?

    Me neither, but to each their own.

    In any
    case if I want a full screen command line it is just <CTRL><ALT>F1 and
    the screen switches.  You can set it up to boot into the command line if you want and then start the windowing system if you need it.

    The Pi5 is almost to the point of really being a desktop replacement.
    Maybe when the Pi6 comes out.


    I think the rPi5 is a desktop replacement. Not a great standalone
    development work horse PC, but a simple desktop. Especially as the rPi5
    has Remmina Remote Desktop client (RDP), which allows me to work on a
    powerful Windows PC.


    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From druck@news@druck.org.uk to comp.sys.raspberry-pi on Monday, June 10, 2024 10:51:04
    From Newsgroup: comp.sys.raspberry-pi

    On 09/06/2024 22:33, Pancho wrote:
    On 08/06/2024 22:22, Knute Johnson wrote:
    I've got a Pi5 8GB with a Pimoroni NVME Base, a 250GB NVME SSD and a
    RaspberryPi Active Cooler.  RPi has a M.2 HAT now that would work fine
    too but I don't know if the Active Cooler will work with it.  The
    active cooler is almost silent

    It's not so much "almost silent", as totally silent. It is quite noisy
    when it spins up, it just that, under Pi OS, it doesn't spin up unless
    under extreme load.

    and unless I do something really CPU intensive it never speeds up to a
    speed where I can hear it (that could partially be because of 40 years
    of jet engines too :-)


    Look at it, the reason the fan looks stationary, is because it is stationary. It's not a strobe effect. Stick something in it, if you
    don't believe me.

    Or issue this command:-

    cat /sys/devices/platform/cooling_fan/hwmon/hwmon2/fan1_input

    Which will give you the current fan speed rpm. If you want know how fast
    as a percentage it is read
    /sys/devices/platform/cooling_fan/hwmon/hwmon2/pwm1 and divide by 2.5

    ---druck
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Lawrence D'Oliveiro@ldo@nz.invalid to comp.sys.raspberry-pi on Friday, June 14, 2024 07:24:45
    From Newsgroup: comp.sys.raspberry-pi

    On Sat, 08 Jun 2024 18:52:41 +0000, Daniel wrote:

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case?

    My gut feeling is, the cost of a Pi is so low, why not take the risk of
    buying it, trying it and seeing for yourself how it works out?
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Theo@theom+news@chiark.greenend.org.uk to comp.sys.raspberry-pi on Friday, June 14, 2024 09:59:17
    From Newsgroup: comp.sys.raspberry-pi

    Daniel <me@sc1f1dan.com> wrote:
    Joerg Walther <joerg.walther@magenta.de> writes:

    Daniel wrote:

    No I didn't and thanks for alerting me on that. I thought the VM's could >>specify architecture.

    Actually ARM Docker can run x86 images, but expect it to be sluggish.

    Debian is home to me and there is an ARM version so I'll likely go that route. Still evaluating.

    I think the later Pis (4 and 5) do support KVM now, which earlier ones
    didn't. However I don't think it's a road very well travelled, so there
    could be bumps.

    With KVM you can run an Arm OS, but:

    Pi OS images are designed to be relashed to a Pi SD card, so don't UEFI
    which is probably the way KVM/QEMU wants to boot them. There are generic
    Arm server images which probably will boot, and you can then install GUI packages. You won't get GPU acceleration as there's no idea of Pi GPU passthrough.

    While there might be no Kubuntu image, that's easy to install on a
    standard Ubuntu:

    $ sudo apt install kubuntu-desktop

    The other limitation with Pis is the limited RAM, which might not be enough. Docker makes better use of RAM than VMs, and is a much more popular path.

    TL:DR if you want an easy life go with Docker on Pi or VMs on x86. Other
    routes are more 'interesting'.

    Theo
    (who should play with KVM on Pi4 sometime)
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Theo@theom+news@chiark.greenend.org.uk to comp.sys.raspberry-pi on Friday, June 14, 2024 12:04:51
    From Newsgroup: comp.sys.raspberry-pi

    Theo <theom+news@chiark.greenend.org.uk> wrote:
    Pi OS images are designed to be relashed to a Pi SD card, so don't UEFI
    which is probably the way KVM/QEMU wants to boot them. There are generic
    Arm server images which probably will boot, and you can then install GUI packages. You won't get GPU acceleration as there's no idea of Pi GPU passthrough.

    A useful source of Arm VM images is the UTM hypervisor for Apple Silicon Macs:

    https://mac.getutm.app/gallery/

    The bundles contain a disc image that will run via QEMU or virt-manager - it uses
    Apple's hypervisor kit on Macs, while on Linux you can use KVM.
    That way they are already set up to boot in QEMU.

    If you have a Mac, importing the VM into UTM will also tell you the flags it runs QEMU with, which could be handy for setting up video etc. The details
    are in the .plist file which would need transcribing to QEMU flags if you
    don't have a Mac.

    (QEMU will also run the non-ARM64 images, just you have to run them via qemu-system-x86_64 or whatever, and they'll be emulated and slower)

    Theo
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Daniel@me@sc1f1dan.com to comp.sys.raspberry-pi on Friday, June 14, 2024 16:45:16
    From Newsgroup: comp.sys.raspberry-pi

    Lawrence D'Oliveiro <ldo@nz.invalid> writes:

    On Sat, 08 Jun 2024 18:52:41 +0000, Daniel wrote:

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case?

    My gut feeling is, the cost of a Pi is so low, why not take the risk of buying it, trying it and seeing for yourself how it works out?

    That's what I did. It's enroute.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Daniel@me@sc1f1dan.com to comp.sys.raspberry-pi on Friday, June 14, 2024 16:45:46
    From Newsgroup: comp.sys.raspberry-pi

    Lawrence D'Oliveiro <ldo@nz.invalid> writes:

    On Sat, 08 Jun 2024 18:52:41 +0000, Daniel wrote:

    In your collective experience, would this provide sufficient stability
    to run a VM server with my light use case?

    My gut feeling is, the cost of a Pi is so low, why not take the risk of buying it, trying it and seeing for yourself how it works out?

    I also wanted opinions and experiences. Can't hurt to ask.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Lawrence D'Oliveiro@ldo@nz.invalid to comp.sys.raspberry-pi on Friday, June 14, 2024 22:22:51
    From Newsgroup: comp.sys.raspberry-pi

    On 14 Jun 2024 09:59:17 +0100 (BST), Theo wrote:

    Pi OS images are designed to be relashed to a Pi SD card, so don't UEFI
    which is probably the way KVM/QEMU wants to boot them.

    Note the difference between KVM and QEMU: KVM is the virtualization architecture built into the Linux kernel, which allows it to run virtual machines of the same architecture type as the physical hardware it’s on, using the virtualization capabilities of that same hardware.

    QEMU is a collection of software emulators for a whole lot of different architectures, regardless of the actual hardware you run it on. It offers sufficient fidelity to the original hardware to support booting of OSes
    that were specifically written for that hardware. But being software-
    based, it will usually be slower than the actual hardware.

    When QEMU is asked to emulate architecture X when the physical hardware is that same architecture X, then you can ask it to bring in KVM to run the emulated OS at something close to native hardware speed. Note this is not something that happens automatically, if you don’t ask for it.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Lawrence D'Oliveiro@ldo@nz.invalid to comp.sys.raspberry-pi on Sunday, June 16, 2024 01:19:49
    From Newsgroup: comp.sys.raspberry-pi

    On Sat, 8 Jun 2024 16:22:24 -0500, Knute Johnson wrote:

    The Pi5 is almost to the point of really being a desktop replacement.

    “Replacement” for what other desktops in that price range?

    Maybe compared to something second-hand that is 10 years old, and consumes 10× the power, perhaps.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Chris Green@cl@isbd.net to comp.sys.raspberry-pi on Sunday, June 16, 2024 09:33:10
    From Newsgroup: comp.sys.raspberry-pi

    Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
    On Sat, 8 Jun 2024 16:22:24 -0500, Knute Johnson wrote:

    The Pi5 is almost to the point of really being a desktop replacement.

    “Replacement” for what other desktops in that price range?

    Maybe compared to something second-hand that is 10 years old, and consumes 10× the power, perhaps.

    I think you're a bit behind the times there. PCs (as in x86_64 based)
    can now be found, even second hand, that consume only four or five
    watts. I have a number of Fujitsu Esprimo systems (Q557 and Q957) with
    power consumption down around five watts, I'm sure there are other manufacturers' systems similar. Refurbished Q556s can be bought for
    around £50 which compares pretty favourably with a Pi 5, plus case,
    plus power supply, etc.

    I have several RPis as well, they have their uses.
    --
    Chris Green
    ·
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From not@not@telling.you.invalid (Computer Nerd Kev) to comp.sys.raspberry-pi on Monday, June 17, 2024 09:27:23
    From Newsgroup: comp.sys.raspberry-pi

    Chris Green <cl@isbd.net> wrote:
    Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
    "Replacement" for what other desktops in that price range?

    Maybe compared to something second-hand that is 10 years old, and consumes >> 10x the power, perhaps.

    I think you're a bit behind the times there. PCs (as in x86_64 based)
    can now be found, even second hand, that consume only four or five
    watts. I have a number of Fujitsu Esprimo systems (Q557 and Q957) with
    power consumption down around five watts, I'm sure there are other manufacturers' systems similar.

    Interesting, did you find somewhere online that told you this
    before buying one? The specs I find for them are just the power
    supply wattage (and even that can take a lot of hunting sometimes),
    which for the Fujitsu Esprimo Q557 is 65W. I tried to find details
    about idle power consumption for these mini desktop systems and
    never got anywhere, except for x86_64 SBCs, so I bought one of them
    instead (similar wattage to what you quote, but a slower CPU).

    Refurbished Q556s can be bought for around ?50 which compares
    pretty favourably with a Pi 5, plus case, plus power supply, etc.

    If there was a physical shop selling them nearby me I'd turn up
    there with a power meter in-hand. It's very frustrating that the
    manufacturers don't talk about it (though RPi don't either, users
    just happen to post their own measurements online in places I can
    find).
    --
    __ __
    #_ < |\| |< _#
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Chris Green@cl@isbd.net to comp.sys.raspberry-pi on Monday, June 17, 2024 08:41:20
    From Newsgroup: comp.sys.raspberry-pi

    Computer Nerd Kev <not@telling.you.invalid> wrote:
    Chris Green <cl@isbd.net> wrote:
    Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
    "Replacement" for what other desktops in that price range?

    Maybe compared to something second-hand that is 10 years old, and consumes
    10x the power, perhaps.

    I think you're a bit behind the times there. PCs (as in x86_64 based)
    can now be found, even second hand, that consume only four or five
    watts. I have a number of Fujitsu Esprimo systems (Q557 and Q957) with power consumption down around five watts, I'm sure there are other manufacturers' systems similar.

    Interesting, did you find somewhere online that told you this
    before buying one? The specs I find for them are just the power
    supply wattage (and even that can take a lot of hunting sometimes),
    which for the Fujitsu Esprimo Q557 is 65W. I tried to find details
    about idle power consumption for these mini desktop systems and
    never got anywhere, except for x86_64 SBCs, so I bought one of them
    instead (similar wattage to what you quote, but a slower CPU).

    Refurbished Q556s can be bought for around ?50 which compares
    pretty favourably with a Pi 5, plus case, plus power supply, etc.

    If there was a physical shop selling them nearby me I'd turn up
    there with a power meter in-hand. It's very frustrating that the manufacturers don't talk about it (though RPi don't either, users
    just happen to post their own measurements online in places I can
    find).

    I agree absolutely about the almost total lack of actual power
    consumption figures for PCs. It took me a long, long time to find
    some useful figures. I did find something in the end though, it's a spreadsheet from 'EU Energy Star', the one I have is a few years old
    but it covers systems up to four or five years ago so is ideal for
    refurbished systems like the Esprimo ones above. (That should be Q556
    not Q557 by the way).

    The file name of the actual spreadsheet I have is:-

    eu_energy_star_computers_61_-_20180220.xlsx

    I think searching for that name should get you somewhere, but if not
    then drop me an E-Mail (valid address here) and I'll send you a copy.
    --
    Chris Green
    ·
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Theo@theom+news@chiark.greenend.org.uk to comp.sys.raspberry-pi on Monday, June 17, 2024 11:10:19
    From Newsgroup: comp.sys.raspberry-pi

    Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
    On 14 Jun 2024 09:59:17 +0100 (BST), Theo wrote:

    Pi OS images are designed to be relashed to a Pi SD card, so don't UEFI which is probably the way KVM/QEMU wants to boot them.

    Note the difference between KVM and QEMU: KVM is the virtualization architecture built into the Linux kernel, which allows it to run virtual machines of the same architecture type as the physical hardware it’s on, using the virtualization capabilities of that same hardware.

    QEMU is a collection of software emulators for a whole lot of different architectures, regardless of the actual hardware you run it on. It offers sufficient fidelity to the original hardware to support booting of OSes
    that were specifically written for that hardware. But being software-
    based, it will usually be slower than the actual hardware.

    When QEMU is asked to emulate architecture X when the physical hardware is that same architecture X, then you can ask it to bring in KVM to run the emulated OS at something close to native hardware speed. Note this is not something that happens automatically, if you don’t ask for it.

    QEMU is not purely a collection of software emulators, although it does
    contain those.

    QEMU is the frontend, ie the thing that implements all the various I/O
    devices and options like video drivers, virtual networking, USB passthrough, all that stuff.

    QEMU supports a number of virtualisation backends. These just take care of virtualising CPU instructions and providing the memory model - accesses to
    I/O are trapped and passed through to QEMU to emulate. There are three
    popular ones:

    1. KVM is Linux's virtualistion backend, which only works if
    host architecture == guest architecture

    2. Apple's virtualisation and hypervisor frameworks do a similar thing on Macs

    3. QEMU contains its own cross-architecture emulation backend called TCG.
    If you want to run one arch on another it's probably using TCG.

    If you're running KVM on Linux then you're likely to be running QEMU in the frontend to implement your I/O and interface with the world. Orchestration tools like virt-manager and libvirt mean you may not be touching QEMU
    directly, but there is a QEMU running further down the stack. ie KVM
    almost certainly implies QEMU but QEMU doesn't imply KVM.


    (QEMU also does user-mode emulation, using TCG to run individual Linux
    binaries of one arch on another. That's something else entirely)

    Theo
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Theo@theom+news@chiark.greenend.org.uk to comp.sys.raspberry-pi on Monday, June 17, 2024 11:42:05
    From Newsgroup: comp.sys.raspberry-pi

    Chris Green <cl@isbd.net> wrote:
    I agree absolutely about the almost total lack of actual power
    consumption figures for PCs. It took me a long, long time to find
    some useful figures. I did find something in the end though, it's a spreadsheet from 'EU Energy Star', the one I have is a few years old
    but it covers systems up to four or five years ago so is ideal for refurbished systems like the Esprimo ones above. (That should be Q556
    not Q557 by the way).

    The file name of the actual spreadsheet I have is:-

    eu_energy_star_computers_61_-_20180220.xlsx

    I think searching for that name should get you somewhere, but if not
    then drop me an E-Mail (valid address here) and I'll send you a copy.

    Oh, that's super useful: https://energy.ec.europa.eu/publications/eu-energy-star-qualified-products-eu-market_en

    For those wondering (I had to look it up):

    Short-idle mode means a state where the computer has reached an idle condition five minutes after operating
    system boot, after completing an active workload, or after resuming from computer sleep mode, and the primary
    computer display is on and the computer remains in the working mode ACPI G0 (S0)

    Long-idle mode means a state where the computer has reached an idle condition 15 minutes after operating system
    boot, after completing an active workload, or after resuming from computer sleep mode, and the primary computer
    display has entered a low-power state where screen contents cannot be observed (for example, backlight has been
    turned off) but remains in the working mode ACPI G0.

    https://efiling.energy.ca.gov/GetDocument.aspx?tn=214562&DocumentContentId=23352
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From not@not@telling.you.invalid (Computer Nerd Kev) to comp.sys.raspberry-pi on Tuesday, June 18, 2024 09:45:41
    From Newsgroup: comp.sys.raspberry-pi

    Theo <theom+news@chiark.greenend.org.uk> wrote:
    Chris Green <cl@isbd.net> wrote:
    I agree absolutely about the almost total lack of actual power
    consumption figures for PCs. It took me a long, long time to find
    some useful figures. I did find something in the end though, it's a
    spreadsheet from 'EU Energy Star', the one I have is a few years old
    but it covers systems up to four or five years ago so is ideal for
    refurbished systems like the Esprimo ones above. (That should be Q556
    not Q557 by the way).

    The file name of the actual spreadsheet I have is:-

    eu_energy_star_computers_61_-_20180220.xlsx

    Oh, that's super useful: https://energy.ec.europa.eu/publications/eu-energy-star-qualified-products-eu-market_en

    Yes, exactly what I was hoping for.

    For those wondering (I had to look it up):

    Short-idle mode means [snip]

    Thanks, that saved me a job too.
    --
    __ __
    #_ < |\| |< _#
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Michael Schwingen@news-1513678000@discworld.dascon.de to comp.sys.raspberry-pi on Saturday, July 13, 2024 06:50:45
    From Newsgroup: comp.sys.raspberry-pi

    On 2024-06-16, Chris Green <cl@isbd.net> wrote:

    I think you're a bit behind the times there. PCs (as in x86_64 based)
    can now be found, even second hand, that consume only four or five
    watts.

    Correct, but you have to look hard to find that information before buying.

    My always-on machine which does mail server / monitoring / mqtt and lots of other light stuff together with a desktop for when I don't need the big
    machine is an Intel NUC D34010 - 16GB RAM, SATA SSD, uses about 5W when
    sitting idle at the desktop (measured).

    I configured fancontrol so that the fan is stopped as long as the CPU is
    below 60°C (which is normally is).

    The i3 is fast enough for normal use (I use debian with XFCE). I have a Pi
    5, which feels sluggish on the desktop in comparison.

    cu
    Michael
    --
    Some people have no respect of age unless it is bottled.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Deloptes@deloptes@gmail.com to comp.sys.raspberry-pi on Sunday, July 14, 2024 06:20:59
    From Newsgroup: comp.sys.raspberry-pi

    Michael Schwingen wrote:

    Correct, but you have to look hard to find that information before buying.

    My always-on machine which does mail server / monitoring / mqtt and lots
    of other light stuff together with a desktop for when I don't need the big machine is an Intel NUC D34010 - 16GB RAM, SATA SSD, uses about 5W when sitting idle at the desktop (measured).

    And you are also behind times - the west is gone - long live
    Alibaba/AliExpres (joking).

    I bought Acresser devices in 2007/2008 right before the financial melt down. They cost 250 US and were kind of picky to set up. Last year one of them
    died (well the ide-to-CF controller gave up). The cool thing about those
    were that they used max.12W. I started looking everywhere (in the west). I couldn't find anything useful. Min. power consumption >60W and costs >600,-
    ... and then I went to Alibaba/AliExpres ... it felt like I found a
    treasury.
    BTW the NUC and the kind of are not bad - but non had more than one LAN port
    + power consumption + price.
    It is a disappointment what happened after 2008 ... but not going into
    politics and economics. Just have a look at Alibaba/AliExpres.



    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From Michael Schwingen@news-1513678000@discworld.dascon.de to comp.sys.raspberry-pi on Sunday, July 14, 2024 08:59:52
    From Newsgroup: comp.sys.raspberry-pi

    On 2024-07-14, Deloptes <deloptes@gmail.com> wrote:
    BTW the NUC and the kind of are not bad - but non had more than one LAN port + power consumption + price.

    I paid 100€ for the D34010. Yes, if you need more than 1 lan port you need
    to look elsewhere (in some use cases, a USB3 ethernet adapter might work).

    There are current (Intel gen-12 and newer) machines that are in the ~5W idle ballpark, but these tend to cost a lot more.

    It is a disappointment what happened after 2008 ... but not going into politics and economics. Just have a look at Alibaba/AliExpres.

    I regularly buy chips and breakout boards there. Getting reliable
    information about power consumption before you buy is a big problem, and warranty/back-shipment costs is another.

    Also, I am quite wary of chinese equipment using mains voltage.

    I just bought a JBC-compatible soldering station from aliexpress. It works fine, but electrical safety is less than marginal: less than 1mm creepage distance from mains to the non-grounded metal case is definitely not OK.

    I had to build a new housing (and used a different, safe power supply). In this case it was worth the effort and I had considered this before buying,
    but for a mini-PC, I would rather buy something that can be used out of the
    box without danger of electrocution.

    cu
    Michael
    --
    Some people have no respect of age unless it is bottled.
    --- Synchronet 3.19b-Win32 NewsLink 1.113
  • From not@not@telling.you.invalid (Computer Nerd Kev) to comp.sys.raspberry-pi on Monday, July 15, 2024 09:22:10
    From Newsgroup: comp.sys.raspberry-pi

    Deloptes <deloptes@gmail.com> wrote:

    I bought Acresser devices in 2007/2008 right before the financial melt down. They cost 250 US and were kind of picky to set up. Last year one of them
    died (well the ide-to-CF controller gave up). The cool thing about those
    were that they used max.12W. I started looking everywhere (in the west). I couldn't find anything useful. Min. power consumption >60W and costs >600,- ... and then I went to Alibaba/AliExpres ... it felt like I found a
    treasury.

    Ah but will they last so long? A SBC at half the price costs you more
    if you have to buy three replacements over the lifespan of the
    expensive one. Then there's the many hours wasted working around the
    failure and re-ordering, after which you'll be inclined to buy a
    second one as a spare anyway.

    Many years ago I experimented with buying computer-related devices
    off AliExpress and Chinese Ebay sellers. Most failed much sooner
    than I expect from such gear, if they worked at all. When looking
    for a saving now my preference has turned to buying second-hand
    models from a good brand off Ebay or similar websites. Even used
    devices have proven more reliable than AliExpress standard stuff,
    plus the used sellers aren't so busy trying to trick you into
    thinking you're buying something you're not (and sometimes not
    sending your order if you pick a good deal that they listed by
    accident!) like on AliExpress. Often it's actually cheaper too,
    if you have the patience to wait for the right listing to come
    along.

    For things without electronics in them like cables and connectors,
    I use AliExpress a lot though. I just don't trust them with a
    transistor. Though I did buy some allegedly (and authentic looking)
    second-hand known-brand RAM from China on Ebay and that has lasted
    well.

    BTW the NUC and the kind of are not bad - but non had more than one LAN port + power consumption + price.

    Yeah I ruled out the NUCs on power consumption, but now I see from
    the mentioned spreadsheet that the idle power can be far below the
    PSU specs, they're back as an option.
    --
    __ __
    #_ < |\| |< _#
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