Hyper-V Integrated Services



  • Setting up an nginx box on a Hyper-V VM, when I go to install the Integrated Services, it fails:

    0_1505513367705_2017-09-15 18_06_22-SSI-VMHOST-4 - NTG - Connected.png

    Any thoughts on what could be the issue. Google isn't coming back with anything on what the issue is.



  • @gjacobse said in Hyper-V Integrated Services:

    Setting up an nginx box on a Hyper-V VM, when I go to install the Integrated Services, it fails:

    0_1505513367705_2017-09-15 18_06_22-SSI-VMHOST-4 - NTG - Connected.png

    Any thoughts on what could be the issue. Google isn't coming back with anything on what the issue is.

    Check and see if the cdrom of mounted. If it is use umount to disconnect it.



  • Yup - That did it.



  • When you bring up a Fedora 26 VM on Hyper-V, all you need to do is run this:
    dnf install hyperv-daemons hypervvssd hyperv-tools

    What .iso are you using?

    Also, if creating a Linux VM on Hyper-V, you'll need to create the .vhdx like this:
    New-VHD -Path "E:\Hyper-V\Virtual Hard Disks\linuxvm.vhdx" -SizeBytes 150GB -Dynamic -BlockSizeBytes 1MB
    The important part is the -BlockSizeBytes. Make the -SizeBytes what you want.



  • @tim_g
    You don't have to include hypervvssd anymore. Its one of the dependencies when installing hyperv-daemons package.

    You can find out by typing the following command:

    sudo dnf deplist hyperv-daemons
    


  • @tim_g said

    Also, if creating a Linux VM on Hyper-V, you'll need to create the .vhdx like this:
    New-VHD -Path "E:\Hyper-V\Virtual Hard Disks\linuxvm.vhdx" -SizeBytes 150GB -Dynamic -BlockSizeBytes 1MB
    The important part is the -BlockSizeBytes. Make the -SizeBytes what you want.

    Why is this?

    What if you are using the GUI to do this? Is this still required?



  • @brrabill said in Hyper-V Integrated Services:

    Why is this?

    Because of some technical reasons I read before but don't remember off the top of my head without looking again.

    Also, Microsoft recommends and says to do it that way themselves officially.



  • @brrabill said in Hyper-V Integrated Services:

    What if you are using the GUI to do this? Is this still required?

    Yes, still required. The GUI uses defaults. So you'll need to do this via PowerShell.



  • Interesting.

    I (and others who shall remained unnamed) started playing with Hyper-V a little bit recently.

    This is what I think you were referencing...
    https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/best-practices-for-running-linux-on-hyper-v



  • @brrabill said in Hyper-V Integrated Services:

    Interesting.

    I (and others who shall remained unnamed) started playing with Hyper-V a little bit recently.

    This is what I think you were referencing...
    https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/best-practices-for-running-linux-on-hyper-v

    Yes, that's the one.



  • @tim_g said in Hyper-V Integrated Services:

    @brrabill said in Hyper-V Integrated Services:

    Interesting.

    I (and others who shall remained unnamed) started playing with Hyper-V a little bit recently.

    This is what I think you were referencing...
    https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/best-practices-for-running-linux-on-hyper-v

    Yes, that's the one.

    How does one confirm if its still needed for XFS file systems?



  • @black3dynamite said in Hyper-V Integrated Services:

    @tim_g said in Hyper-V Integrated Services:

    @brrabill said in Hyper-V Integrated Services:

    Interesting.

    I (and others who shall remained unnamed) started playing with Hyper-V a little bit recently.

    This is what I think you were referencing...
    https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/best-practices-for-running-linux-on-hyper-v

    Yes, that's the one.

    How does one confirm if its still needed for XFS file systems?

    I briefly looked around for that same answer, and I couldn't find anything. So until I can find otherwise, I'm sticking to the recommendation.



  • Speaking of LIS, is there anything else that needs to be done on the VM side ohter than install?

    For example, with Fedora 26, it appears all the Hyper-V stuff is already installed in the OS itself. Does anything else need to be installed in the VM?



  • @brrabill said in Hyper-V Integrated Services:

    Speaking of LIS, is there anything else that needs to be done on the VM side ohter than install?

    For example, with Fedora 26, it appears all the Hyper-V stuff is already installed in the OS itself. Does anything else need to be installed in the VM?

    Hot-Add support is not enabled by default.



  • @brrabill said in Hyper-V Integrated Services:

    Speaking of LIS, is there anything else that needs to be done on the VM side ohter than install?

    For example, with Fedora 26, it appears all the Hyper-V stuff is already installed in the OS itself. Does anything else need to be installed in the VM?

    Nothing other than what's already mentioned in this thread... but if you want to do nested virtualization, see here: https://www.timothygruber.com/hyper-v-2/run-a-nested-vm-on-kvm-qemu-vm-in-hyper-v/



  • @tim_g said

    Nothing other than what's already mentioned in this thread...

    You mean install the hyperv-daemons?

    But I am wondering if that is already installed? AKA, there is nothing to do?


  • Service Provider

    @tim_g said in Hyper-V Integrated Services:

    @brrabill said in Hyper-V Integrated Services:

    Speaking of LIS, is there anything else that needs to be done on the VM side ohter than install?

    For example, with Fedora 26, it appears all the Hyper-V stuff is already installed in the OS itself. Does anything else need to be installed in the VM?

    Nothing other than what's already mentioned in this thread... but if you want to do nested virtualization, see here: https://www.timothygruber.com/hyper-v-2/run-a-nested-vm-on-kvm-qemu-vm-in-hyper-v/

    WTF does nested virtualization have to do with anything?



  • @jaredbusch said in Hyper-V Integrated Services:

    @tim_g said in Hyper-V Integrated Services:

    @brrabill said in Hyper-V Integrated Services:

    Speaking of LIS, is there anything else that needs to be done on the VM side ohter than install?

    For example, with Fedora 26, it appears all the Hyper-V stuff is already installed in the OS itself. Does anything else need to be installed in the VM?

    Nothing other than what's already mentioned in this thread... but if you want to do nested virtualization, see here: https://www.timothygruber.com/hyper-v-2/run-a-nested-vm-on-kvm-qemu-vm-in-hyper-v/

    WTF does nested virtualization have to do with anything?

    Wtf exactly are you doing in this thread? Posting helpful replies (as always) I see... perhaps this is another one in which you can shove it.

    Anyways,

    He never specified his intentions or goals with running Linux in Hyper-V. For all I know he may want to toy with KVM or something else requiring virtualization extensions. Which if that is the case, it's likely unknown that there are some extra steps you can't do via the GUI. So, I figured I'd throw that out there to save him (and others) some time... as this is probably one thread that will show up in search results down the road for that purpose.


  • Service Provider

    @tim_g the OP clearly stated that he is trying to setup and nginx instance on a Linux based VM on Hyper-V server.



  • @jaredbusch said in Hyper-V Integrated Services:

    @tim_g the OP clearly stated that he is trying to setup and nginx instance on a Linux based VM on Hyper-V server.

    It wasn't the OP who I was responding to, if maybe, you know, you'd take the time to read instead of troll.


  • Service Provider

    @tim_g he is not either. He is turning up a Hyper-V system in his lab to try instead of XS.


  • Service Provider

    @jaredbusch said in Hyper-V Integrated Services:

    @tim_g he is not either. He is turning up a Hyper-V system in his lab to try instead of XS.

    And while that may someday lead to wanting to try nested virtualization, nothing in this thread hinted that, and posting extraneous information does nothing to answer the OP or the other responders in the thread.



  • @jaredbusch said in Hyper-V Integrated Services:

    @jaredbusch said in Hyper-V Integrated Services:

    @tim_g he is not either. He is turning up a Hyper-V system in his lab to try instead of XS.

    And while that may someday lead to wanting to try nested virtualization, nothing in this thread hinted that, and posting extraneous information does nothing to answer the OP or the other responders in the thread.

    QQ more?

    What information is or is not extraneous / relevant can be very subjective, and thankfully, isn't your call to make. The last I was aware, ML is a discussion forum.



  • So ... just to take this back to Hyper-V LIS...

    @Tim_G you said that you still need to install stuff for LIS to work. However, from all my research, that does not appear to be the case, and in fact it is built into most modern Linux OSes.

    Let's take the recent ML darling, Fedora as an example.

    You set up a new Fedora VM using the manual PS method to create a VHDX. Once the VM boots up and you update it, what do you do?

    I content there is nothing more to do.



  • BTW: I am talking about Hyper-V 2016, BTW.

    I think that is also some of the confusion out there.



  • @brrabill said in Hyper-V Integrated Services:

    BTW: I am talking about Hyper-V 2016, BTW.

    I think that is also some of the confusion out there.

    # Hyper-V Guest Agents
    sudo dnf -y install hyperv-daemons hyperv-tools
    
    # Hot-Add support
    sudo tee /etc/udev/rules.d/100-balloon.rules <<EOF
    SUBSYSTEM=="memory", ACTION=="add", ATTR{state}="online"
    EOF
    
    
    


  • @black3dynamite

    And what does that DO exactly.

    If you go to the LIS page on Microsft's site, you can see the following...

    Microsoft provides Linux Integration Services for a broad range of Linux distros as documented
    in the Linux and FreeBSD Virtual Machines on Hyper-V topic on TechNet. Per that documentation,
    **many Linux distributions and versions have Linux Integration Services built-in and do not require
    installation of this separate LIS package from Microsoft**. This LIS package is available for a subset
    of supported distributions in order to provide the best performance and fullest use of Hyper-V
    features. It can be installed in the listed distribution versions that do not already have LIS built
    in, and **can be installed as an upgrade in listed distribution versions that already have LIS built-in**.
    The built-in Red Hat Enterprise Linux Integration Services drivers for Hyper-V (available since
    Red Hat Enterprise Linux 6.4) are sufficient for Red Hat Enterprise Linux guests to run using the
    high performance synthetic devices on Hyper-V hosts. These built-in drivers are certified by Red
    Hat for this use, and certified configurations can be viewed on the Red Hat Customer Portal. It is
    not necessary to download and install this Linux Integration Services package from the Microsoft
    Download Center to use Red Hat Enterprise Linux on Hyper-V, and doing so may limit your Red
    Hat support as described in Red Hat Knowledgebase article 1067.
    

    Reading through this, what sticks out to me is that there is NO NEED to install anything. In fact, it says for RHEL installing more can actually limit official support. Which is why I am asking what you are installing.

    Also, it also says you can upgrade to the latest versions if your Linux OS doesn't have it, but that is a file to be downloaded from Microsoft, much as in the example @JaredBusch gave on how to install LIS.

    So, a few loose ends here, which is why I am asking...



  • @brrabill said in Hyper-V Integrated Services:

    @black3dynamite

    And what does that DO exactly.

    If you go to the LIS page on Microsft's site, you can see the following...

    Microsoft provides Linux Integration Services for a broad range of Linux distros as documented
    in the Linux and FreeBSD Virtual Machines on Hyper-V topic on TechNet. Per that documentation,
    many Linux distributions and versions have Linux Integration Services built-in and do not require
    installation of this separate LIS package from Microsoft
    . This LIS package is available for a subset
    of supported distributions in order to provide the best performance and fullest use of Hyper-V
    features. It can be installed in the listed distribution versions that do not already have LIS built
    in, and can be installed as an upgrade in listed distribution versions that already have LIS built-in.
    The built-in Red Hat Enterprise Linux Integration Services drivers for Hyper-V (available since
    Red Hat Enterprise Linux 6.4) are sufficient for Red Hat Enterprise Linux guests to run using the
    high performance synthetic devices on Hyper-V hosts. These built-in drivers are certified by Red
    Hat for this use, and certified configurations can be viewed on the Red Hat Customer Portal. It is
    not necessary to download and install this Linux Integration Services package from the Microsoft
    Download Center to use Red Hat Enterprise Linux on Hyper-V, and doing so may limit your Red
    Hat support as described in Red Hat Knowledgebase article 1067.

    Reading through this, what sticks out to me is that there is NO NEED to install anything. In fact, it says for RHEL installing more can actually limit official support. Which is why I am asking what you are installing.

    Also, it also says you can upgrade to the latest versions if your Linux OS doesn't have it, but that is a file to be downloaded from Microsoft, much as in the example @JaredBusch gave on how to install LIS.

    So, a few loose ends here, which is why I am asking...

    With Red Hat and CentOS they do have the packages builtin but they are old because of the release cycles of those two. That's why Microsoft provides a separate LIS packages. With Fedora, its releases twice a year so you will end up getting newer packages anyway.

    Also the LIS packages that Microsoft provides automatically adds Hot-Add support rule.



  • @black3dynamite said

    With Red Hat and CentOS they do have the packages builtin but they are old because of the release cycles of those two. That's why Microsoft provides a separate LIS packages. With Fedora, its releases twice a year so you will end up getting newer packages anyway.

    Also the LIS packages that Microsoft provides automatically adds Hot-Add support rule.

    So if you are installing CentOS 7 or Fedora 26 ... there is nothing else required, correct?

    The supported LIS is included by default and will be updated automatically by the system.



  • @brrabill said in Hyper-V Integrated Services:

    @black3dynamite said

    With Red Hat and CentOS they do have the packages builtin but they are old because of the release cycles of those two. That's why Microsoft provides a separate LIS packages. With Fedora, its releases twice a year so you will end up getting newer packages anyway.

    Also the LIS packages that Microsoft provides automatically adds Hot-Add support rule.

    So if you are installing CentOS 7 or Fedora 26 ... there is nothing else required, correct?

    The supported LIS is included by default and will be updated automatically by the system.

    You do NOT need to and shouldn't install any kind of LIS when you use Fedora 26 on Hyper-V.



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