Subcategories

  • All Xen related stuff

    627 Topics
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    D
    @hrvojer Ever since 2012 R2 went out of support, there have been multiple compatibility breaks in the drivers and guest agents since they now target Server 2016+. It might be possible to get the drivers working on 2012 R2 in a testing environment, but bringing that to production is another topic.
  • The integrated web UI to manage XCP-ng

    29 Topics
    367 Posts
    olivierlambertO
    The same as @john.c and also XO Lite tends to be less a priority because less critical than the full fledged XO (the priority is to replace entirely XO 5 in the next releases). Why you would need XO Lite outside basic actions? It's mostly meant to bootstrap XO itself and do basic operations (which is already the case, at least with many basic features already). Initially, the goal hasn't moved: replacing XenCenter. We are moving in that direction, but again, I think it's more important to get XO 6 finished first. I'm curious to understand more the use case of XO Lite in your context @unreal-shizzle ?
  • Section dedicated to migrations from VMWare, HyperV, Proxmox etc. to XCP-ng

    132 Topics
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    @mpiton Thanks for a fantasticly quick answer, and detailed as well. I will test this immediately! Update: I can confirm that this was indeed the problem!
  • Hardware related section

    178 Topics
    2k Posts
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    lspci -nn -s fra dom0 21:15 xcp-ng-test ~]# lspci -n -vvv -s 0f:00.0 0f:00.0 0300: 1002:13c0 (rev c1) (prog-if 00 [VGA controller]) Subsystem: 1002:13c0 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 42 Region 0: Memory at fc10000000 (64-bit, prefetchable) [size=256M] Region 2: Memory at fc200000 (64-bit, prefetchable) [size=2M] Region 4: I/O ports at e000 [size=256] Region 5: Memory at fc700000 (32-bit, non-prefetchable) [size=512K] Capabilities: [48] Vendor Specific Information: Len=08 <?> Capabilities: [50] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [64] Express (v2) Legacy Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ MaxPayload 256 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 16GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 16GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 16GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+, EqualizationPhase1+ EqualizationPhase2+, EqualizationPhase3+, LinkEqualizationRequest- Capabilities: [a0] MSI: Enable- Count=1/4 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [c0] MSI-X: Enable+ Count=4 Masked- Vector table: BAR=5 offset=00042000 PBA: BAR=5 offset=00043000 Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [270 v1] #19 Capabilities: [2a0 v1] Access Control Services ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans- Capabilities: [2b0 v1] Address Translation Service (ATS) ATSCap: Invalidate Queue Depth: 00 ATSCtl: Enable-, Smallest Translation Unit: 00 Capabilities: [2c0 v1] Page Request Interface (PRI) PRICtl: Enable- Reset- PRISta: RF- UPRGI- Stopped+ Page Request Capacity: 00000100, Page Request Allocation: 00000000 Capabilities: [2d0 v1] Process Address Space ID (PASID) PASIDCap: Exec+ Priv+, Max PASID Width: 10 PASIDCtl: Enable- Exec- Priv- Capabilities: [410 v1] #26 Capabilities: [450 v1] #27 Kernel driver in use: pciback
  • The place to discuss new additions into XCP-ng

    255 Topics
    3k Posts
    dicode-nlD
    New version: https://github.com/dicode-nl/xcp-ng-ceph-rbd/releases/tag/v20260903 This one includes native Ceph rbd SXM over SMAPIv3! GitHub updated with the latest commits and changes. As always, use with caution. I did run a lot of test scenario's but please do test yourself and let me know your findings!
  • Boot device: Hard Disk - Success

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    @fnf games If it hangs right after detecting the disk, it could be a bootloader or filesystem inconsistency from the snapshot state. Can you try booting the VM with a recovery ISO to check disk integrity or rebuild the bootloader?
  • XCP-NG upgrade 8.2 to 8.3

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    To add a bit more detail on the upgrade path: strictly speaking, you do not need to apply outstanding 8.2 patches before upgrading. When you upgrade to 8.3, you are replacing the entire base system with the 8.3 release which already incorporates everything from the 8.2 patch stream. Any 8.2 patches you hadn't yet applied will simply be superseded. That said, applying them first is still a reasonable approach if you want a clean upgrade history and a fully-patched 8.2 baseline before jumping to 8.3. A few things worth checking before you start on a production pool: Check VM compatibility. Run a quick review of your VMs for any that might have specific OS or toolstack dependencies tied to 8.2. Most guests upgrade cleanly but it is worth knowing your environment. Use rolling pool upgrade if you have more than one host. XCP-ng supports rolling upgrades: you migrate VMs off each host, upgrade it, rejoin the pool, then proceed to the next. This maintains VM availability throughout the process. The XO interface handles this workflow if you have XOA. Back up before the jump. Export critical VM configurations or snapshots beforehand. If you use Xen Orchestra for backups, trigger a manual full backup job before starting. The upgrade itself via yum is straightforward: add the 8.3 repo, yum update, reboot. The toolstack and XAPI will handle pool registration after the host comes back up. After upgrading all hosts, run the post-upgrade checks from the docs (pool metadata sync, storage rescans) and verify HA is healthy if you use it.
  • Cannot shutdown VM or migrate

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    C
    Not sure the issue, but rebooted the host and everything is fine again. I definitely had rebooted the host twice though after applying the patches and physically unplugged and moved the host.
  • Nested virtualization

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    @olivierlambert Can you provide insights? Is nested virtualization as in running Hyper-V inside a XCP-ng VM expected to work?
  • Hot-adding a resource

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    U
    Thank you all for your answers—now it's clear.
  • xcp-ng patches install fail

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    https://xcp-ng.org/forum/topic/11951/just-fyi-current-update-seams-to-break-nut-dependancies
  • XCP-ng center 25.04.0 does not see guest-tools.iso

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    Thank you for the input everyone. I've tested XenAdminQt and it sees iso library, thank you for advice! Reason for using XCP-ng center is ease of use/simplicity during quick testing deployments in comparison to XO.
  • Issues with new vm after latest 8.3 updates (priror to release)

    Solved
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    olivierlambertO
    No worries, it happens! Glad you found the problem
  • USB-Passthrough does not survive reboot of VM

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    @DustinB doesn't it use the exact same mechanism? I have to find out.
  • Issues joining pool with less pif on the newest host

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    @semarie This pool is still on 8.2.1, we are trying to add this host in order upgrade with little to no downtime.
  • Deploying firewall to XCP-NG with rescue

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    ditzy-oliveD
    @bleader thanks for the tip. You see my knowledge in redhat based systems is almost non existant. Think I'm almost 99% debian and 1% ubuntu (and that not by choice) So I will take care of redeploying the script as soon as I upgrade, should be easily noticeable since monitoring will loose access and yell at me.
  • Every virtual machine I restart doesn't boot.

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    D
    @nikade said in Every virtual machine I restart doesn't boot.: @DustinB yeah im guessing the VDI isn't attached to the VM for some reason, based on the screenshot. Im also wondering if he ever rebooted the VM's after installing them with PXE Right, it's a likely answer... but even then I would've expected his PXE server to just restart the installation process all over again... assuming that the disk is attached to the VM etc and that PXE boot isn't disabled automatically like it is with an ISO after first boot. haha
  • 0 Votes
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  • HP DL380 Gen 8 - XCP-ng 8.1.0 Failing to update microcode

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  • VM state is halted but should be running

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    DanpD
    @olivierlambert New thread is here
  • Error installing Ubuntu 24.04 on new xcp-ng host.

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    @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
  • Booting to Dracut (I trusted ChatGPT)

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    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
  • VM time ahead by 5 hours

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    acebmxerA
    @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.
  • Windows 11 (Win11_25H2_English_x64.iso) Fails to Install

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    acebmxerA
    @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.
  • Create new virtual machine?

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    acebmxerA
    @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