[SOLVED] PVE 7.2.7 unable to open qemu-server.conf at /usr/share/perl5/PVE/VZDump/QemuServer.pm line 210


Well-Known Member
Jul 28, 2017
Hello all,
Any idea how to fix this backup error?
ERROR: Backup of VM 450 failed - unable to open '/mnt/pve/nas/dump/vzdump-qemu-450-2022_11_22-15_51_26.tmp/qemu-server.conf' at /usr/share/perl5/PVE/VZDump/QemuServer.pm line 210


do backups only fail for this VM, or also for others? What kind of storage is it that you're backing up to?
if it's a CIFS share it might be the same issue from this thread (in German). The solution/workaround was to mount the CIFS share with an fstab entry with the noserverino option and then re-add that as a Proxmox VE directory storage with is_mountpoint 1.
Switched to NFS and everything is working.
The latest TrueNAS upgrade must have an issue with Proxmox.


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