Newbie question about Proxmox kernel

  • Hello everyone, maybe what I'm asking is very basic but I've searched and I haven't been able to dispel my doubts on this subject.


    I recently upgraded my NAS hardware to a more reliable one, my idea was to experiment with virtual machines, since some services like Homeassistant or Nextcloud have some limitations when they run as a container, in general containers are the best for me, but I wouldn't lose that functionality. I tried to install the KVM plugin on OMV7 just installed and it fails, which made me do some digging and find Proxmox that many of you use.


    Since I've seen that you can install the Proxmox kernel from the kernels menu, I've had several doubts.


    When you install the Proxmox kernel and start with it, does your OMV7 installation stop working? Or do you simply use another kernel and all your stuff keeps working there while you run the Proxmox kernel?


    What other advantages does this kernel have, why do so many people in this forum use it.


    Thanks in advance, I hope I don't bore you with my newbie doubts.

    • Official Post

    Or do you simply use another kernel and all your stuff keeps working there while you run the Proxmox kernel?

    This. You do not need the proxmox kernel for the kvm plugin, you can use it though.


    Most use the proxmox kernel as it support zfs (filesystem) out of the box.


    • Official Post

    When you install the Proxmox kernel and start with it, does your OMV7 installation stop working? Or do you simply use another kernel and all your stuff keeps working there while you run the Proxmox kernel?

    OMV doesn't care what kernel you use. Using the proxmox kernel is about having a newer kernel version and zfs built in. It also might be a slight bit more stable than the backports kernel.


    I use the proxmox kernel on all of my x86 machines except one that uses nvidia drivers. If you want to use kvm, enable backports. You get a much newer version of qemu that way.

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


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  • Thanks for your answers, I have installed the ProxMox kernel and activated backports, although it has nothing to do with it, like other users it does not let me install the KVM plugin, I don't know why, it gives me error 500.



    • Official Post

    like other users it does not let me install the KVM plugin, I don't know why, it gives me error 500.

    Doesn't look like backports is configured. What is the output of: sudo omv-aptclean repos

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

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    • Official Post

    Can you install the kvm plugin now?

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

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  • No, before writing the answer with the output of the command I tried to install kvm again without success, I also tried to do a complete reboot, it didn't work either, this is a problem I have had since I just installed OMV7.


    I read other threads with other people who had problems with this plugin without finding any solution.




    • Official Post

    I read other threads with other people who had problems with this plugin without finding any solution.

    It isn't a fault with the plugin. It is a fault either with the repos on your system and/or the current state of debian backports repo.


    When you get errors, please cut&paste from the bell in the top right of the web interface. The screenshot is hard to read and doesn't give the entire error.


    That said, I wasn't done trying things.


    What is the output of: apt-cache policy qemu-system-x86 qemu-system-ppc

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
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  • Sorry, I didn't know how to copy the error and it disappeared very quickly, one new thing I learned, the full error:


    Last output, my system shows some words in spanish, I translated:



    • Official Post

    Your system still doesn't have the qemu packages pinned.


    What is the output of
    sudo omv-env get OMV_APT_USE_KERNEL_BACKPORTS

    sudo omv-salt deploy run apt

    sudo cat /etc/apt/preferences.d/omvextras.pref

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

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    Edited once, last by ryecoaaron ().

  • Code
    root@NAS:~# omv-env get OMV_APT_USE_KERNEL_BACKPORTS
    OMV_APT_USE_KERNEL_BACKPORTS=YES



    Edited 2 times, last by Tiomel: adding info ().

    • Official Post

    ryecoaaron added an additional command in post #11


    please also have a look at this

  • ryecoaaron added an additional command in post #11


    please also have a look at this

    Corrected and added third output

    • Official Post

    What is the output of this command now?

    apt-cache policy qemu-system-x86 qemu-system-ppc

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
    Please don't PM for support... Too many PMs!

    • Official Post

    I don't know why the pinning is wrong but at least the versions show up. Try this:


    sudo apt-get install -t bookworm-backports qemu-system-x86 qemu-system-ppc

    sudo apt-get install openmediavault-kvm

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
    Please don't PM for support... Too many PMs!

  • First one installe without problems, installing KVM output this errors (translated from Spanish):


    • Official Post

    sudo apt-get install -t bookworm-backports qemu-system-mips

    sudo apt-get install openmediavault-kvm

    omv 7.6.0-1 sandworm | 64 bit | 6.11 proxmox kernel

    plugins :: omvextrasorg 7.0.1 | kvm 7.0.16 | compose 7.3.3 | cputemp 7.0.2 | mergerfs 7.0.5 | scripts 7.0.9


    omv-extras.org plugins source code and issue tracker - github - changelogs


    Please try ctrl-shift-R and read this before posting a question.

    Please put your OMV system details in your signature.
    Please don't PM for support... Too many PMs!

  • more dependencies problems at kvm install.

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