XCP-ng 8.3 updates announcements and testing

acebmxer

@stormi would this issue cause this behavior? VM stuck at startup...

Screenshot 2025-10-24 091455.png

Screenshot 2025-10-24 091510.png

dinhngtu

@acebmxer Looks like it. You can recover by installing a preliminary test update here:

wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
yum update --enablerepo=xcp-ng-ndinh1 varstored varstored-tools
secureboot-certs clear

Then propagate SB certs to make sure that subsequent dbx updates will run normally.

Sorry for the inconvenience.

Greg_E

@dinhngtu

I was just getting ready to go update my pool... So is it safe now? And do these certs only affect Secure Boot VMs or UEFI VMs as well?

acebmxer

@dinhngtu Thank you for that reply.

Just to clarify I have 4 host. 2 host i updated to latest update once they became available to public via pool updates. The other 2 host I had to push the second beta release to get command secureboot-certs install to work. Then I pushed the rest of the update again once they became public.

So far im only seeing 1 vm having the issue on the later 2 host the had the beta updates installed. There that test PC and 1 windows server (Printsrver), xoproxy, and xoce.

Should i run those commands on all 4 host or just the later 2 with the troubled vm?

dinhngtu

@Greg_E said in XCP-ng 8.3 updates announcements and testing:

@dinhngtu

I was just getting ready to go update my pool... So is it safe now? And do these certs only affect Secure Boot VMs or UEFI VMs as well?

This problem will affect UEFI VMs. See the announcement above for more details.

In short, if you haven't updated, you should be safe; the offending update has been withdrawn and no longer available from yum update (as long as you're not using the testing branch).

@acebmxer said in XCP-ng 8.3 updates announcements and testing:

@dinhngtu Thank you for that reply.

Just to clarify I have 4 host. 2 host i updated to latest update once they became available to public via pool updates. The other 2 host I had to push the second beta release to get command secureboot-certs install to work. Then I pushed the rest of the update again once they became public.

So far im only seeing 1 vm having the issue on the later 2 host the had the beta updates installed. There that test PC and 1 windows server (Printsrver), xoproxy, and xoce.

Should i run those commands on all 4 host or just the later 2 with the troubled vm?

I haven't tested using different versions of varstored within the same pool.

acebmxer

@dinhngtu

All 4 host have the same version. They were just not updated the same way at the same time was the point i was making and that so far only 1 vm seems to be affected.

But i guess to play it self i should downgrade all 4 host.

Edit - ran the following commands on master host of pool with the vm with issue. VM now boots up.

Sorry for all the questions.

wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
yum update --enablerepo=xcp-ng-ndinh1 varstored varstored-tools
secureboot-certs clear

Should run that above commands on all the remaining host?

Or should i run this command on any of the four host?

yum downgrade varstored-1.2.0-2.3.xcpng8.3

dinhngtu

@acebmxer You can confirm if there are other affected VMs using this command:

xe vm-list --minimal | xargs -d, -Ix sh -c "echo Scanning x 1>&2; varstore-ls x" > /dev/null

If there are still affected VMs, you must fix them on varstored-1.2.0-3.2 by secureboot-certs clear + propagating before downgrading to 2.3 (if you wish).

Note that downgrading to 2.3 with pool certs cleared means you'll need to set up guest Secure Boot again. So I recommend staying on 3.2 if it's possible for you.

flakpyro

@dinhngtu The output of that command seems to result in the output of "Scanningn every UUID in my pool", most of which do not use SB. Im guessing that normal and i do not have any affected VMs any longer?

acebmxer

I opened a support ticket #7746470

I get the following from different host...

Pool1 Master host:
[09:48 xcp-ng-vyadytkn ~]# xe vm-list --minimal | xargs -d, -Ix sh -c "echo Scanning x 1>&2; varstore-ls x" > /dev/null
Scanning ab9e8cde-fad8-5089-29c8-c904a810857a
Scanning d2025b59-6268-6bb9-28cd-e4812395563c
Scanning 4567b8da-3a3c-00a4-cf6b-ccdae302a645
Scanning 291f9d05-88c8-fc37-107a-368a55c649be
Scanning 88d7ba09-e65a-dd82-8d45-ec3df3e3f9d4
Scanning bcc182c6-dbb7-33c4-3e8b-c7db9b246e7b
Scanning 5a2c18ca-e9ce-abfc-8bd7-2794f94c6c3a
Scanning f4a4669a-2baf-47f2-b16a-08f60963e922
Scanning d4352870-d73c-5cda-9470-ffd7cd01e251
Scanning b0c21701-7309-dd9c-fa2a-bdc84a24565e
Scanning 342b470e-fac9-6579-f82d-2517b8de6112
Scanning 2c21c005-9230-f3f3-cdf6-2d39407b3456
Scanning 102a5ac2-ab7f-68ca-9fa1-b549d64ec4a9
Scanning c9dadc90-6fb8-eee7-d3e5-e1ae1024a77f
Scanning 5703adef-d804-6b15-ba2f-7b3357a711bb
Scanning a8858f86-ceab-2d5d-5d46-1b083c3fa399
Scanning 82b191df-a63c-4357-b618-4467f714008a

Pool 2 Master host (Problem VM)

[10:02 localhost ~]# xe vm-list --minimal | xargs -d, -Ix sh -c "echo Scanning x 1>&2; varstore-ls x" > /dev/null
Scanning ece6db75-533b-5359-1a99-28d5dc1a6912
Scanning c81f1f1b-9f95-38ec-f96e-5ce8fea073e6
unserialize_variables: Tolerating oversized data 60440 > 57344
Scanning 4fb6dee8-c251-93e6-0c20-b1c1c67351ba
Scanning 8a570993-6522-c837-0931-6fd1812dbd96
Scanning b31749b8-bc1a-0e8a-a864-50a06391592e
Scanning bf1b61d5-14ca-9f0e-7040-24c177693cea
Scanning af6eeff7-5640-28a9-dbdb-87f094a04665
Scanning 43ba924b-8bf7-4a50-b258-2e977f6f2f0c
Scanning 5a625c92-3702-2ce6-1790-39497745e83c
Scanning 9f36a8c5-c988-8546-b0f9-30ac9d0a5015
Scanning a7f5b1bb-7fe2-d0b5-5187-f29e5d4d15d7

Greg_E

My production pool upgraded fine as far as I can tell, but not so good with the windows drivers, I'll make a thread on the drivers.

dinhngtu

@flakpyro said in XCP-ng 8.3 updates announcements and testing:

@dinhngtu The output of that command seems to result in the output of "Scanningn every UUID in my pool", most of which do not use SB. Im guessing that normal and i do not have any affected VMs any longer?

Yes, it'll produce an error message in unserialize_variables when there's a problem.

@acebmxer Scanning on 1 host will scan the whole pool at once.

In the output you posted, there's only c81f1f1b-9f95-38ec-f96e-5ce8fea073e6 which needs fixing.

acebmxer

@dinhngtu

@acebmxer Scanning on 1 host will scan the whole pool at once.

In the output you posted, there's only c81f1f1b-9f95-38ec-f96e-5ce8fea073e6 which needs fixing.

That is the same pool/host i ran the following command on.

wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
yum update --enablerepo=xcp-ng-ndinh1 varstored varstored-tools
secureboot-certs clear

The vm being called out is the vm that would not boot that is booting now after running the above command.

Is this the command i need to run?

varstore-rm c81f1f1b-9f95-38ec-f96e-5ce8fea073e6 d719b2cb-3d3a-4596-a3bc-dad00e67656f dbx

dinhngtu

@acebmxer Yes, that'll fix the situation.

Note that we're discussing a different approach for the official update, which will involve using a manual repair tool.

acebmxer

@dinhngtu
Thank you for all the help. See output below. Please let me know if you would like for me to test anything from my side.

[10:02 localhost ~]# xe vm-list --minimal | xargs -d, -Ix sh -c "echo Scanning x 1>&2; varstore-ls x" > /dev/null
Scanning ece6db75-533b-5359-1a99-28d5dc1a6912
Scanning c81f1f1b-9f95-38ec-f96e-5ce8fea073e6
unserialize_variables: Tolerating oversized data 60440 > 57344
Scanning 4fb6dee8-c251-93e6-0c20-b1c1c67351ba
Scanning 8a570993-6522-c837-0931-6fd1812dbd96
Scanning b31749b8-bc1a-0e8a-a864-50a06391592e
Scanning bf1b61d5-14ca-9f0e-7040-24c177693cea
Scanning af6eeff7-5640-28a9-dbdb-87f094a04665
Scanning 43ba924b-8bf7-4a50-b258-2e977f6f2f0c
Scanning 5a625c92-3702-2ce6-1790-39497745e83c
Scanning 9f36a8c5-c988-8546-b0f9-30ac9d0a5015
Scanning a7f5b1bb-7fe2-d0b5-5187-f29e5d4d15d7

[10:23 localhost ~]# varstore-rm c81f1f1b-9f95-38ec-f96e-5ce8fea073e6 d719b2cb-3d3a-4596-a3bc-dad00e67656f dbx
unserialize_variables: Tolerating oversized data 60440 > 57344
[11:40 localhost ~]# xe vm-list --minimal | xargs -d, -Ix sh -c "echo Scanning x 1>&2; varstore-ls x" > /dev/null
Scanning ece6db75-533b-5359-1a99-28d5dc1a6912
Scanning c81f1f1b-9f95-38ec-f96e-5ce8fea073e6
Scanning 4fb6dee8-c251-93e6-0c20-b1c1c67351ba
Scanning 8a570993-6522-c837-0931-6fd1812dbd96
Scanning b31749b8-bc1a-0e8a-a864-50a06391592e
Scanning bf1b61d5-14ca-9f0e-7040-24c177693cea
Scanning af6eeff7-5640-28a9-dbdb-87f094a04665
Scanning 43ba924b-8bf7-4a50-b258-2e977f6f2f0c
Scanning 5a625c92-3702-2ce6-1790-39497745e83c
Scanning 9f36a8c5-c988-8546-b0f9-30ac9d0a5015
Scanning a7f5b1bb-7fe2-d0b5-5187-f29e5d4d15d7
[11:40 localhost ~]#

dinhngtu

@acebmxer All looks good from the output. There might be some VMs that need fixes for Windows dbx updates to work properly, I'll try to add that in the official version.