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  • All Xen related stuff

    603 Topics
    6k Posts
    bvitnikB
    @hitechhillbilly I'd say this is normal if you are low on RAM and you are doing a live VDI migration. XCP-ng requires some amount of free RAM on the host to be able to live migrate the VDI. The larger the VDI, the more RAM is needed but exact sizing is unknown to me. I've encountered this error numerous times so I consider it common. The way around this is to shutdown the VM and then migrate the VDI. RAM requirements in that case are much much lower.

  • The integrated web UI to manage XCP-ng

    26 Topics
    348 Posts
    olivierlambertO
    It's not meant to be used like that. If you are behind a NAT, the right approach is to have your XOA behind the NAT and inside the same network than the hosts. That's because hosts will always use and return their internal IPs to connect to some resources (stats, consoles etc.). XOA deals with that easily as being the "main control point" for all hosts behind your NAT (or a XO proxy if you prefer).

  • Section dedicated to migrations from VMWare, HyperV, Proxmox etc. to XCP-ng

    110 Topics
    1k Posts
    L
    @olivierlambert Thanks for the tip — it’s a very interesting mechanism. I’m going to read the docs now

  • Hardware related section

    144 Topics
    1k Posts
    D
    hardware_report_2025-12-12_17-20-47.txt lspci.txt mlx.txt pci.txt Diagnostic logs

  • The place to discuss new additions into XCP-ng

    244 Topics
    3k Posts
    F
    @dinhngtu Thanks. We plan to migrate all Windows VMs from the Citrix tools down the road and only have a handful of VMs running these so far so will maybe hold off until the next version. Have been running the Linux rust tools for over a year with zero issues..
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  • T

    XCP-ng 8.2.1 Guest UEFI Secure Boot

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    MathieuRAM
    I see that the bug is actually already fixed on the latest version (5.98.1).
  • apzA

    Guest running kernel 6.8 hangs after a while

    Solved
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    T
    I believe Proxmox Backup Server kernel Linux pbs 6.8.4-2-pve has also the same issue. updating to Linux pbs 6.8.12-1-pve solves.
  • M

    Protectli now available preinstalled with XCP-NG

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    olivierlambertO
    @darkbounce Short answer: it seems that Intel hybrid architecture is finding a way to make something that would result of Xen running the VM with the less "featured" CPU, meaning your VM will never use all P core instructions that aren't on E core, meaning... it will work without disabling one or another. Hard to tell how much is lost in terms of perfs vs the best Intel hybrid scheduler (which is on... Windows) but probably not that much on a machine with a reduced number of P cores like this one.
  • Y

    Mirror moved Permanently

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    olivierlambertO
    @yammy I hope you are not talking of installing Docker in the Dom0, because this is really a bad idea.
  • P

    xo vm-export / vm-import issue with latest XCP-Ng 8.3

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    P
    @Pix [image: 1724423840376-capture-d-e-cran-2024-08-23-a-16.36.56.png] Looks like the different HW or Pool is an issue, i'll make more tests and report here if it's ok
  • P

    Disable DHCP option 60 when PXE booting

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    P
    @PontusB i don't even know if disabling option 66 solves the issue but as soon as we add option 66 in our DHCP server it boots fine from XenServer (but without HA between the many PVS servers).
  • RealTehrealR

    Issue after latest host update

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    M
    @stormi Thanks, looking forward.
  • T

    Vates please work acquiring vmware in the future

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    T
    @olivierlambert There you go hehe
  • B

    yum update, no more free space?

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    I
    @bloodyskullz If you still see the old ISO SR, the easiest way to migrate is simply by creating a new one and migrate the ISOs through XO to the new one. In regards to deletion of the old SR you need to check if it really is mapped to another drive or if the mapping was not working and it filled / if so, you might not be able to delete it
  • C

    Guide to Replace Tianocore UEFI Logo

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    No one has replied
  • robytR

    update via yum or via xoa?

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    robytR
    @bleader said in update via yum or via xoa?: yes you're basically doing an RPU manually. But it is indeed odd that the process is stuck at 0%, it should be fairly fast to do the install patches, no errors in the logs? i've another install all patches and install all. Now i'll use rpm update and see if speed is the same or not
  • O

    Pool Tasks Don't Complete? Major Issues...

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    O
    @Danp Yes to both. I've probably restarted the toolstack at least a dozen times, mostly to clear hung tasks. I did notice some weird issues with a secondary SR being disconnected on xcp02, (one of 10 hosts, 9 after I ejected and forgot xcp01), but there's no disks on it. It wasn't being used for anything at all (yet), and it's fine on all the rest. That does lead me to think maybe it was a power bump that rebooted a switch or something though. Maybe it caused some kind of hangup with xcp01 and xcp02, and since xcp01 was the pool master, it cascaded to the other issues I've seen? Could that cause the VM's that were originally running on xcp02 to die and not be able to be recovered easily?
  • S

    Ubuntu 24.04 VMs not reporting IP addresses to XCP-NG 8.2.1

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    J
    I just tried to install Ubuntu 24.04 to test it out, and I experienced the same problem with it not recognizing the IP address. I was first using the Ubuntu-provided package (xe-guest-utilities=7.20.2-0ubuntu1), which was failing. I then tried the package I had been using with my Ubuntu 22.04 servers that used to be part of the XCP-ng guest-tools.iso (xe-guest-utilities_7.20.0-9_amd64.deb) and had the same results. I mounted my current guest-tools.iso, which now has xe-guest-utilities_7.30.0-11_amd64.deb, and installed it. Now it was retrieving the IP address correctly. I'm not sure why the OP was still having trouble with that version (I'm using UEFI instead of BIOS, but I wouldn't think that would matter). I went ahead and tried out the Rust-based tools mentioned (xen-guest-agent_0.4.0_amd64.deb), and it was properly getting the IP address as well. I'm guessing there's some incompatibility (probably with the 6.x kernel) that was fixed between 7.20 and 7.30 (intentionally or accidentally). Given how much the Linux tools have changed over the years and the fact that they're not used for PV drivers anymore, is there a particular reason to use one over the other (legacy vs Rust)? What features do they really provide now? Is it just CPU/memory/disk/network status?
  • K

    A task keeps poping up every second or so

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    olivierlambertO
    In any case, you can ignore it.
  • henri9813H

    VM migration is blocked during backup whereas no backup in progress

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    henri9813H
    @Danp Okay, you're a genius, I upgrade this morning after my backup. So that could explain my issue. the mentioned thread is exactly my issue, but I didn't find it when I was searching about my issue. Thanks for all !
  • D

    can't start vm after host disconnect

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    olivierlambertO
    No, from the XCP-ng point of view, the VM is still running without any interruption.
  • J

    XCP-ng Documentation - Roadmap

    Solved xcp-ng doc roadmap question out of date questions
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    J
    @olivierlambert @Marc-pezin Thank you very much for sorting this out!
  • N

    problem with export or moving VM between pools

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    N
    @nick-lloyd I like your interpretation.
  • A

    Upgrading to 2.5GB NICs and Troubleshooting Driver Issues on XCP-ng

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    6 Posts
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    A
    @aghering You could try compiling it yourself on 8.1... I don't have an 8.1 test/build system.
  • N

    Optimization of Virtual Machines

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    E
    @NerdsOrder66 Ah, good question... My most recent environment included a Windows Server with 100+ RDP users. There wasn't anything special for optimization there aside from giving it a bunch of RAM/CPU resources, but YMMV.