1. Home
  2. XCP-ng

Subcategories

  • All Xen related stuff

    605 Topics
    6k Posts
    E
    Give me a couple of days to try. It is (obviously) down to the combination of devices passed through, as I reported this earlier: said in TrueNAS VM failing to start: Re-boot XCP and start the TrueNAS VM with NO passthrough devices. As expected, that started up fine. Cheers.

  • 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

    116 Topics
    1k Posts
    florentF
    @yeopil21 you can target vsphere it should work The issue here is that XO fail to link one of your datastore to the datacenter is it XO from source or a XOA ? you should have in your server logs something like can't find datacenter for datastore with the datacenters and the datastore name as detected by XO are you using an admin account on vsphere or is it a limited one ?

  • Hardware related section

    154 Topics
    1k Posts
    D
    @Danp said in Recommended DELL Hardware ?: @DustinB said in Recommended DELL Hardware ?: With local storage on each hosts, you won't be able to live migrate from 1 host to the other. That's incorrect. The migrations will take significantly longer because the VDI will be migrated along with the VM's memory, but you can live migrate VMs between hosts even if the VDI are stored on local storage. Sorry, I'm probably using a lazy definition of live migration. I know the VM and its memory can move. Doesn't using non-shared storage ultimately cause the VM to be started on the other host?

  • The place to discuss new additions into XCP-ng

    246 Topics
    3k Posts
    yannY
    @Tristis-Oris yes it is likely you're using a newer kernel, we likely need to rebuild the agent using a newer version of the netlink crate.
Log in to post
Load new posts
  • O

    VM state is halted but should be running

    5
    0 Votes
    5 Posts
    104 Views
    DanpD
    @olivierlambert New thread is here
  • O

    Every virtual machine I restart doesn't boot.

    16
    0 Votes
    16 Posts
    100 Views
    DanpD
    It is difficult to know the source of the problem without more details from your logs. Can you run the following commands on your XCP-ng host and then attach the generated files here? grep -A 15 -B 15 -i error /var/log/xensource.log/xensource > xensource.txt grep -A 15 -B 15 -i exception /var/log/SMlog > smlog.txt dmesg -T|grep -Eiv 'guest|capacity|promiscuous' > dmesg.txt
  • A

    Error installing Ubuntu 24.04 on new xcp-ng host.

    24
    1
    0 Votes
    24 Posts
    2k Views
    A
    @malemburg Kernel versions: 24.04 - Linux ubuntu-server 6.8.0-31-generic #31-Ubuntu SMP PREEMPT_DYNAMIC Sat Apr 20 00:40:06 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux 24.04.3 - Linux ubuntu-server 6.8.0-71-generic #71-Ubuntu SMP PREEMPT_DYNAMIC Tue Jul 22 16:52:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux This is what is running after all the updates: Linux pxe000 6.8.0-100-generic #100-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 13 16:40:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux I have this in my autoinstall to install the tools late-commands: - echo 'deb [trusted=yes] https://gitlab.com/api/v4/projects/xen-project%252Fxen-guest-agent/packages/generic/deb-amd64/ release/' > /target/etc/apt/sources.list.d/xen-guest-agent.list - curtin in-target -- apt update - curtin in-target -- apt install -y xen-guest-agent And this to get all the updates: updates: all
  • N

    Booting to Dracut (I trusted ChatGPT)

    26
    0 Votes
    26 Posts
    2k Views
    M
    I know this is old but I had a similar issue. In the end I told dracut NOT to reassemble my raid array which allowed the system to boot perfectly after. I have no idea why it tries to assemble the same array two but on the second seems to be important
  • A

    VM time ahead by 5 hours

    7
    0 Votes
    7 Posts
    182 Views
    A
    @dinhngtu I think it just have been a bad migration or the Win 11 Template did other things to the windows 10 os. Since new test vm did not show the time issues, and a fresh migration of the vim with correct template selected did not have the issues either. I dont know but maybe there is a way to put detect the correct VM template or make note. I didnt think using the win 11 template would have caused issues since using the "wrong" template on vm creation does not have the same effect.
  • B

    Windows 11 (Win11_25H2_English_x64.iso) Fails to Install

    12
    4
    0 Votes
    12 Posts
    531 Views
    A
    @busthead said in Windows 11 (Win11_25H2_English_x64.iso) Fails to Install: It appears I missed the key press to start setup Dont you know your are not suppose to blink when doing working. You might miss something Glad you figured it out.
  • D

    Create new virtual machine?

    7
    -1 Votes
    7 Posts
    288 Views
    A
    @drwhite85 I suggest watching some youtube videos about xcp-ng. I guest Lawrence Systems - https://www.youtube.com/watch?v=2wMmSm_ZeZ4 He has other videos that go into more depth
  • B

    The Lowest Priority Bug Ever? (/etc/udev/rules.d/z10-xen-vcpu-hotplug.rules)

    3
    0 Votes
    3 Posts
    206 Views
    olivierlambertO
    Worth asking @Team-OS-Platform-Release
  • R

    botched pool patching and now we can't change pool master

    9
    0 Votes
    9 Posts
    370 Views
    R
    Resolved. Patched the rest of the hosts. Restarted all the toolstacks for good measure. I can move the master role now, and deploy new VMs.
  • D

    Lost VMs disk after using new SR

    6
    4
    0 Votes
    6 Posts
    291 Views
    D
    Resolved by rebuild, and doing VM backup and metadata to trunas dataset.... Start Backup earlier. Be better then me
  • S

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

    8
    5
    0 Votes
    8 Posts
    3k Views
    bullerwinsB
    Same behavior: Tools from the ubuntu repo 7.20 don't work on Ubuntu 24.04 (but they work on ubuntu 22.04. But manually installing the tools from the cdrom (version 7.30) work fine
  • K

    Red Hat Linux 10.1 ISO Won't Boot in UEFI Mode

    7
    2
    0 Votes
    7 Posts
    374 Views
    J
    Actually Alma Linux does have a variant for v2 CPUs so they can run 10.0. Just look for x86_64 v2 on the downloads page.
  • M

    log_fs_usage / /var/log directory on pool master filling up constantly

    17
    1
    0 Votes
    17 Posts
    739 Views
    M
    Another thing that I noticed: despite enabling remote syslog (to graylog) for all XCP-ng hosts in the pool /var/log gets filled up to 100%. Adding remote syslog seem to not change usage of /var/log at all. Official XCP-ng documentation states otherwise here: https://docs.xcp-ng.org/installation/install-xcp-ng/#installation-on-usb-drives The linked part of the documentation indicates that configuring remote syslog can be a possible solution for /var/log space constraints which seems to be not the case. I feel like logging could use some investigation by Vates in general.
  • ditzy-oliveD

    suggestions for upgrade path XCP-ng 8.2.1 -> XCP-ng 8.3.0

    11
    0 Votes
    11 Posts
    652 Views
    olivierlambertO
    Great! Keep us posted
  • D

    Xapi#getResource /rrd_updates (on xcp-dl380-gen10) 0%

    5
    0 Votes
    5 Posts
    122 Views
    olivierlambertO
  • ForzaF

    Citrix or XCP-ng drivers for Windows Server 2022

    17
    0 Votes
    17 Posts
    6k Views
    V
    Hi Forza, Have you finished migrating the workloads? If you are still looking for an easy migration solution, you can try Vinchin Backup & Recovery. It will replace the driver during migration intelligently.
  • D

    XCP-ng center 25.04.0 does not see guest-tools.iso

    1
    1
    0 Votes
    1 Posts
    153 Views
    No one has replied
  • A

    ubuntu xen-guest-agent vs xe-guest-utilities

    5
    0 Votes
    5 Posts
    289 Views
    A
    @olivierlambert Thank you for the reply. There was a thread on here about the iso not being mounted properly and I commented about having power off the vm and back and it will load the iso. This is specifically true with the 0.4.0 for linux. Image pulled from the XO Hub will not mount the ios if the vm is powered on. There is Yellow Explanation mark next to it. Power off vm and power on vm iso is ok. Reboot vm does not let the ios to work.
  • T

    Management agent not detected after VM migrated - Windows XCP-ng PV drivers 9.0.9137

    5
    6
    0 Votes
    5 Posts
    409 Views
    T
    @Pilow Yes, we monitor observability metrics for guest OSes via other means but being able to see this info via the Xen Orchestra web UI along with the other metrics in the Stats tab definitely has is benefits, especially when performing initial troublehshooting or when dealing with groups in our org that only have access to the XO interface and not the other metrics dashboards. Don't get me wrong, I definitely appreciate all of the work that you are all doing to get these tools working and can't wait to start using them in production. I just need to make sure that they work as expected.
  • O

    This topic is deleted!

    3
    0 Votes
    3 Posts
    3 Views