@RobWhalley I think in the beginning i had that option enabled in my backup jobs, but found it was a hassle to move VMs between hosts with it on so i turned it off for all backups. Might be why my jobs worked because i had already done that switch in the past.

posted in the other thread as well but Xen Orchestra, commit 1a7b5 backups are working again. I tested configure and vm backups. They are being backup to NFS share.

updated my two hosts without issues.

updated on my three servers no issues.

@stormi said:

We pushed the updates to the xcp-ng-updates repository: https://xcp-ng.org/blog/2026/05/21/may-2026-updates-3-for-xcp-ng-8-3-lts/

Changed since the initial announcement, xen was updated with the proper vulnerability fix and an update to sm was added to fix an issue on LVM-based SRs with CBT enabled.

Thanks everyone for your feedback!

update main pool. so far so good. updates went well and vms are running.

@rzr said:

New security update candidates for XCP-ng 8.3 LTS (kernel, xen, intel-microcode)

i tested on one of my extra pools and so far i didnt see any issues. Grated i dont do much on that pool but i created a ubuntu 26 VM without issues.

Ill wait for full release to do my main pool.

try downgrading your nfs to use version 3. I think version 4.x has performance issues.
in you settings-->remote, you can edit the nfs mount for backups and add in the -o options section.

I dont know the exact command but you can try using nfsvers=3 and see if that helps.

scratch that prior comment. My backups are all setup as delta backup with schedule 2nd run that forces full backup. So i believe both are working correctly.

if you can also try deleting all the backup snapshots of the VMs in the backup and running full backup then the delta backup jobs.

Updated to commit -db8ad this morning and backup is working.

looks good
Xen Orchestra, commit 384bb
Master, commit 384bb

thanks for quick fix

@stormi said:

We pushed the updates to the xcp-ng-updates repository: https://xcp-ng.org/blog/2026/05/21/may-2026-updates-3-for-xcp-ng-8-3-lts/

Changed since the initial announcement, xen was updated with the proper vulnerability fix and an update to sm was added to fix an issue on LVM-based SRs with CBT enabled.

Thanks everyone for your feedback!

update main pool. so far so good. updates went well and vms are running.

@rzr said:

New security update candidates for XCP-ng 8.3 LTS (kernel, xen, intel-microcode)

i tested on one of my extra pools and so far i didnt see any issues. Grated i dont do much on that pool but i created a ubuntu 26 VM without issues.

Ill wait for full release to do my main pool.

@olivierlambert lol okay got it

@stormi I getting a response to reboot after applying to master.

anyone know if applying these two patches requires rebooting?

Just to add more data.
Xen Orchestra, commit 56b17
Master, commit 56b17
All patches on host are done.

the ipmitool works on my asrock MB but i dont see it in XO host screen.
I also didnt see it on xo6 interface.

yeah that was it, i removed the ip address from cfg file and it working now.

Updated to commit -db8ad this morning and backup is working.

I got back into v5 url once i removed LISTEN_ADDRESS="" from my xo-install.cfg

the backup ran on Xen Orchestra, commit cb85e

@florent I posted this in the v6 master thread, but it opens to the old interface but sits with a still loading message.