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Thread: linux-image-virtual: for host machine or guest OS?

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  1. #1
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    Question linux-image-virtual: for host machine or guest OS?

    I couldn't find a clear answer to this, but is the linux-image-virtual package for host machines that will contain VMs, or a VM-oriented kernel for guest OS (ubuntu)?

    I have some guest VMs running on Microsoft's Hyper-V, and was looking for some further optimizations.

  2. #2
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    Re: linux-image-virtual: for host machine or guest OS?

    That would be used for a virtual machine install of Ubuntu Server, so it's part of the guest, not host.
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  3. #3
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    Re: linux-image-virtual: for host machine or guest OS?

    Quote Originally Posted by CharlesA View Post
    That would be used for a virtual machine install of Ubuntu Server, so it's part of the guest, not host.
    Excellent, thanks. Any idea what specifically has been optimized within this?

    I feel bad asking something so trivial, maybe my Google-fu is getting worse with age.

  4. #4
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    Re: linux-image-virtual: for host machine or guest OS?

    I don't really know, tbh. I've tried using the virtual kernel before and didn't really notice all that much difference between it and the regular kernel.

    The only thing I know that's different (for sure) is that it was made to be run as a virtual appliance.
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  5. #5
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    Re: linux-image-virtual: for host machine or guest OS?

    Quote Originally Posted by CharlesA View Post
    I don't really know, tbh. I've tried using the virtual kernel before and didn't really notice all that much difference between it and the regular kernel.

    The only thing I know that's different (for sure) is that it was made to be run as a virtual appliance.
    The difference is that the virtual kernel only bundles drivers needed for the common virtual hardware devices instead of all the modules for real-world hardware.

    So it is considerably smaller in terms of disk space. I'm not aware of any tuning for performance or any functional difference that way, I think it's just for smaller images.

  6. #6
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    Re: linux-image-virtual: for host machine or guest OS?


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