• Installing PV Drivers from Xenproject.org

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    olivierlambertO

    This won't work. We are working to get an installer for the version 9 as we speak, probably having a beta package in the next weeks. Until then, either use the version 8 with XCP-ng drivers or use Citrix ones.

  • Hardware Random Reboot?

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    olivierlambertO

    If there's nothing in /var/crash and you still have hardware reboot, then it's very likely a hardware problem. I would start by doing a memtest πŸ™‚

  • XCP-ng not booting when IPMI host interface is disabled on Supermicro H12 board

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    olivierlambertO

    Ah good news then πŸ™‚

  • Host is locked in Maintenace mode after reboot

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    jurdajrdJ

    So I found solution by myself.

    I turned off corrupted host, then on pool master I forgot corrupted host (xe host-forget uuid=aaaaaaaaa-bbbb-cccc-ddddddddddd).

    Perform a clean install of corrupted host, setup everything as it was, then patch host with XOA.

    As last step I connect it back to the pool, now everything is working fine again.

    To be honest, I do not know what happened, but everything is working now.

  • This topic is deleted!

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  • Could not change "-machine" by 'xe vm-param-set'

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    L

    Hi, @ThierryEscande, thanks for the input here。

    It is pretty interesting that I kind also located the same place by following the interrupter path.
    https://github.com/liayan/xen-xcp-ng/blob/main/xen/common/domain.c#L250

    It quite fits our case atm that issues happened after hitting the limit of 64. Unfortunately, I can not test it yet because our host is stuck in a weird POST status. Will update here later.

  • 0 Votes
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    olivierlambertO

    Thanks! I believe it might be a bug with Clonezilla on specific "BIOS" settings. Platform ID will set some specific things used for Windows, but that should prevent a Linux kernel to boot πŸ€”

  • Best way to migrate a VM with PCIe device passes-through to another host

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    planedropP

    @olivierlambert In all honesty, despite how cool this would be, I don't think there is a very big use case for it. Definitely would still be awesome to see but I can't really find myself using it even in an odd homelab setup with dedicated GPUs passed through or something like that.

    Maybe would be useful for something like a virtual firewall? But I personally don't think firewalls should be virtualized in any sort of prod setting.

  • Installation of XCP Guest tool frivers on RHEL9

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    stormiS

    Then I would try again after installing all updates.

  • XCP-NG HA compatibility

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    A

    @olivierlambert

    Oh, I misread the documentation. Thanks anyway for answering my question.

  • Live Migration on different CPU

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    olivierlambertO

    It's called CPU masking but I don't remember the exact commands.

    You might take a look at xe host-set-cpu-features if it still works.

  • Resource monitoring with perf-alert

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    F

    @olivierlambert said in Resource monitoring with perf-alert:

    On the screenshot I can see your host is really outdated. So I would update/reboot and see the situation after that.

    I tried to update the patches but I get this error:

    pool.rollingUpdate { "pool": "68d0a3f2-ff33-8711-f8b3-bcd85507881b" } { "code": "-1", "params": [ "Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1", "", "Traceback (most recent call last): File \"/etc/xapi.d/plugins/xcpngutils/__init__.py\", line 119, in wrapper return func(*args, **kwds) File \"/etc/xapi.d/plugins/updater.py\", line 96, in decorator return func(*args, **kwargs) File \"/etc/xapi.d/plugins/updater.py\", line 157, in update raise error CalledProcessError: Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1 " ], "call": { "method": "host.call_plugin", "params": [ "OpaqueRef:b48630d1-f865-4315-9bac-21c94ad68369", "updater.py", "update", {} ] }, "message": "-1(Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1, , Traceback (most recent call last): File \"/etc/xapi.d/plugins/xcpngutils/__init__.py\", line 119, in wrapper return func(*args, **kwds) File \"/etc/xapi.d/plugins/updater.py\", line 96, in decorator return func(*args, **kwargs) File \"/etc/xapi.d/plugins/updater.py\", line 157, in update raise error CalledProcessError: Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1 )", "name": "XapiError", "stack": "XapiError: -1(Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1, , Traceback (most recent call last): File \"/etc/xapi.d/plugins/xcpngutils/__init__.py\", line 119, in wrapper return func(*args, **kwds) File \"/etc/xapi.d/plugins/updater.py\", line 96, in decorator return func(*args, **kwargs) File \"/etc/xapi.d/plugins/updater.py\", line 157, in update raise error CalledProcessError: Command '['yum', 'update', '--disablerepo=*', '--enablerepo=xcp-ng-base,xcp-ng-updates', '-y']' returned non-zero exit status 1 ) at Function.wrap (/opt/xo/xo-builds/xen-orchestra-202306071622/packages/xen-api/src/_XapiError.js:16:12) at /opt/xo/xo-builds/xen-orchestra-202306071622/packages/xen-api/src/transports/json-rpc.js:35:21 at runNextTicks (node:internal/process/task_queues:60:5) at processImmediate (node:internal/timers:447:9) at process.callbackTrampoline (node:internal/async_hooks:130:17)" }

    Could anyone please help me resolve this issue?

    Thank you

  • Correct approach to passing block devices (SSD) through to a VM

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    planedropP

    @Ascar Your idea here seems pretty much spot on, I don't really see any issues with it.

    The only thing I would note is that personally for me, and especially in an actual prod environment, I recommend the NAS being it's own box running the OS on bare metal.

    This doesn't mean there is anything wrong with what you are wanting to do, but for me, the device handling my backups and large amounts of data needs to be 100% functional, the last thing I want is something to go wrong with my hypervisor which somehow breaks my ability to get the backups to restore things.

    There are plenty of people that do setups just like this though, especially in a homelab, and they usually don't run into issues.

  • How to disable all CPU exploit mitigations?

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    planedropP

    I second what @olivierlambert says here, really should NOT disable them, these mitigations are in place for a reason and should be left in place regardless of how trusted or untrusted of an environment it is.

    If this is a production system I would also note that you really shouldn't disable them, could be considered negligence in the event of a security incident.

  • Windows Server 2022 VM freezing during install

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    olivierlambertO

    Thanks for your feedback, this might help the community πŸ‘

  • dbsync error with unique constraint violation.

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    olivierlambertO

    Good luck!

  • OS free memory showing Static instead Dynamic

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    J

    @ivanobom I have made a request for packages to be added to the Synergy repository of Alma Linux.

    Give them the time to add the packages to the repository then try the Alma Linux distribution.

  • Cannot join cluster after node upgrade

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    V

    I didn't find a solution, it looked like a change of the host that affected network. Rerunning from USB with latest beta kept showing an upgrade.
    Network reset did not fix it and the machine was laggy, like when I tried to join from XO ( via settings ).

    I just did a complete reinstall, disabled HA on the NFS SR, joined pool and it worked and re-enabled HA.

    Seems ok now, thanks for the help.
    By the way, is there a way to join a node to the main pool in XO ?
    Thanks!

  • VM Running Poorly with MPI

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    olivierlambertO

    I'm talking in the BIOS or in Xen, I would stat to be sure that the CPU is boosting πŸ™‚

  • Weird kern.log errors

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    olivierlambertO

    Ahh great news! CPU issues are really tricky πŸ™‚