XCP-ng

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Subcategories

Compute

All Xen related stuff

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You are welcome! Enjoy XCP-ng and Xen Orchestra 🙂
XO Lite

The integrated web UI to manage XCP-ng

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I'm not waiting for your suggestion to do it, it's already in the backlog 😉
Migrate to XCP-ng

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

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Hi @olivierlambert ,
Please check script here or might suggest someone to collaborate:
https://github.com/josef-bocklage/xcp-ng_xen2xcpng-py3/blob/main/xen2xcpng-Vpy3.py
Hardware

Hardware related section

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No worries, I'm used to the "You attempted an operation on a VM which lacks the feature" meaning to tools are installed. It could have been worded better.

And sure, please provide screenshot if you can reproduce an issue even if the VM has tools (because if it doesn't, then it's a normal thing and not a bug)
Development

The place to discuss new additions into XCP-ng

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@itservices I'm working on it, though it's not fully ready yet.

Work in progress is available from this merge request. The "Merge request pipeline" block has download links to get a deb, a rpm, or a plain executable directly, for those willing to test.

Current proposed code should handle the "unplug" case just right, but the "replug" case still occasionally does not get the IP back - that part in the work but not yet ready to share.

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Solved XCP-ng Center 20.04.01 - console no "remote desktop RDP" on Windows 11 VM

• • xentester123

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Perfect! 🍾
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windows 11 Support

• • okynnor

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@JoyceBabu said in windows 11 Support:

JoyceBabu
20 days ago

@okynnor I installed Win11 after disabling TPM, RAM and SafeMode checks by adding the DWORD32 keys BypassTPMCheck, BypassRAMCheck and BypassSecureBootCheck under HKEY_LOCAL_MACHINE\System\Setup\LabConfig.

@okynnor Full details here: https://www.bleepingcomputer.com/news/microsoft/how-to-bypass-the-windows-11-tpm-20-requirement/

Xen drivers from windows updates didn't install properly for all device. So I installed Xen Tools from here https://downloads.xenserver.com/vm-tools-windows/9.3.1/managementagentx64.msi and works fine.
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Multiple PCI-E passthrough problem

• • kasn_code

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So I managed to get the VM to see both drives.

In dmesg I can see something like this
[ 1.160149] ahci 0000:00:08.0: AHCI 0001.0301 32 slots 1 ports 6 Gbps 0x20 impl SATA mode [ 1.161043] ahci 0000:00:08.0: flags: 64bit ncq sntf ilck led clo only pmp fbs pio slum part [ 1.187888] ahci 0000:00:09.0: SSS flag set, parallel bus scan disabled [ 2.186211] ahci 0000:00:09.0: controller reset failed (0xffffffff) [ 2.187307] ahci: probe of 0000:00:09.0 failed with error -5
So I removed the pci and did a rescan with
root@mars-test-uefi:~# echo "1" > /sys/bus/pci/devices/0000\:00\:09.0/remove root@mars-test-uefi:~# echo "1" > /sys/bus/pci/rescan
Now when I checked dmesg it shows up properly
[ 795.538214] ahci 0000:00:09.0: AHCI 0001.0301 32 slots 1 ports 6 Gbps 0x4 impl SATA mode [ 795.538219] ahci 0000:00:09.0: flags: 64bit ncq sntf ilck led clo only pmp fbs pio slum part
fdisk -l also shows up both drives now too
root@mars-test-uefi:~# fdisk -l Disk /dev/sda: 7.28 TiB, 8001563222016 bytes, 15628053168 sectors Disk model: ST8000DM004-2U91 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/sdb: 7.28 TiB, 8001563222016 bytes, 15628053168 sectors Disk model: WDC WD80EFZZ-68B Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes
It seems like on boot it tries to find the device but it fails to, but on a remove/rescan it seems like its fine?

The question now becomes, how do I make this work ON boot.
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This topic is deleted!

• • bombast02

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Solved Upgrade from 8.1 to 8.2

• • Naviathan

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Thanks a lot for your feedback!
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Is it possible to prioritize the booting of certain VMs over another when xcp-ng starts?

• • kevdog

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I am using the vapp approach with XCP-NG Center. All VMs are put in one group and I have set a fixed start order and delay for each VM.

I think it should be possible to setup this also via Cli but I havbe not done this myself.
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Ubuntu desktop issue

• • Bane

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No one has replied
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Host dbsync failed and XAPI restart everytime after patches installation

• • dtresp

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Really, you should because it would have prevent you this situation in the first place, but also some other future questions or problem you might have That's one of the few capital rules in XCP-ng world. Your master must ALWAYS be more recent than the slaves (or at the same level obviously), otherwise slaves won't be able to connect. I think you really need some assistance on best practices and such, please contact us so we can assist more generally. If this basic requirement is not understand, you might have other/deeper issues.
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Error: Connection refused (calling connect ) (XCP-ng toolstack hang on boot)

• • ScarfAntennae

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Any of the host: if they are in the same pool, that's logical. Only the master is needed to be reach. XAPI will probably be in "Starting state" as long as all SR aren't plugged. If you have the SR on a VM on another host than the master, reboot the master only, you should be able to connect sooner Alternatively, check https://docs.xcp-ng.org/troubleshooting/
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One VM forcibly restarts

• • richiebyte

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On this one VM yeah, all other VM's have been fine with the Citrix tools. I am not sure if the tools change anything on the VM level once installed, as the problem did continue after attaching a fresh blank virtual disk to the problem VM.
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Very scary host reboot issue

• • darabontors

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@tuxen
Absolutely no idea how to do this in Windows. I looked for any MTU setting but couldn't find any. This is not a viable workaround for me, maybe it would be useful to pin the issue to the xen PV driver, maybe I'll do some more testing on spare hardware. I read this, but I don't know how to test it. I didn't have any manual MTUs set so I don't know what values were before the update.
What most definitely fixed the issue for me was using PCIe passthrough for the WAN interface. I used a 10 GbE NIC. It uses the ix driver (ix0) so IDK if this is related. Somehow PPPoE + WG + Windows Client on the virtual interface (Xen PV driver) in OPNsense produces this issue.
At the moment I am happy with this mitigation.

I'm a little spread thin with free time at the moment. Anyone care to test this further?
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Ubuntu VM struck at boot

• • shivank

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How long have you waited for it? Like is it truly stuck or maybe just really slow to boot?

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Solved XCP-ng Center 20.04.01 - console no "remote desktop RDP" on Windows 11 VM

This topic is deleted!

Solved Upgrade from 8.1 to 8.2