LXCs werden nicht gesichert (Backup)

[Josch]

Hallo zusammen!

Ich habe gerade auf einem Knoten das Problem, dass die LXCs nicht im Backup gesichert werden, die QEMUs aber schon. Hier die Fehlermeldung:

2024-06-12 09:29:37 INFO: Starting Backup of VM 100 (lxc)
2024-06-12 09:29:37 INFO: status = running
2024-06-12 09:29:37 INFO: CT Name: pialert
2024-06-12 09:29:37 INFO: including mount point rootfs ('/') in backup
2024-06-12 09:29:37 INFO: backup mode: snapshot
2024-06-12 09:29:37 INFO: ionice priority: 7
2024-06-12 09:29:37 INFO: create storage snapshot 'vzdump'
2024-06-12 09:29:37 INFO: creating vzdump archive '/mnt/pve/nas02/dump/vzdump-lxc-100-2024_06_12-09_29_37.tar.zst'
2024-06-12 09:29:37 INFO: tar: /mnt/pve/nas02/dump/vzdump-lxc-100-2024_06_12-09_29_37.tmp: Cannot open: Permission denied
2024-06-12 09:29:37 INFO: tar: Error is not recoverable: exiting now
2024-06-12 09:29:37 INFO: cleanup temporary 'vzdump' snapshot
2024-06-12 09:29:38 ERROR: Backup of VM 100 failed - command 'set -o pipefail && lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/mnt/pve/nas02/dump/vzdump-lxc-100-2024_06_12-09_29_37.tmp' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/mnt/vzsnap0' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' ./ | zstd '--threads=1' >/mnt/pve/nas02/dump/vzdump-lxc-100-2024_06_12-09_29_37.tar.dat' failed: exit code 2

Scheint ein Rechteproblem zu sein: 'Permission denied'. Aber es kann nicht auf dem NAS sein, welches als Backupziel herhalten muss, da die VMs schließlich ordentlich gesichert werden.

Hier der Log der erfolgreichen VM-Sicherung:

2024-06-06 15:51:27 INFO: Starting Backup of VM 201 (qemu)
2024-06-06 15:51:27 INFO: status = stopped
2024-06-06 15:51:27 INFO: backup mode: stop
2024-06-06 15:51:27 INFO: ionice priority: 7
2024-06-06 15:51:27 INFO: VM Name: opnsense
2024-06-06 15:51:27 INFO: include disk 'scsi0' 'local-lvm2:vm-201-disk-0' 32G
2024-06-06 15:51:27 INFO: creating vzdump archive '/mnt/pve/nas02/dump/vzdump-qemu-201-2024_06_06-15_51_27.vma.zst'
2024-06-06 15:51:27 INFO: starting kvm to execute backup task
2024-06-06 15:51:30 INFO: started backup task '345eeeb2-6c91-468e-9e32-6111a8ae1b4a'
2024-06-06 15:51:33 INFO:  16% (5.2 GiB of 32.0 GiB) in 3s, read: 1.7 GiB/s, write: 12.2 MiB/s
2024-06-06 15:51:36 INFO:  33% (10.7 GiB of 32.0 GiB) in 6s, read: 1.9 GiB/s, write: 15.5 MiB/s
2024-06-06 15:51:39 INFO:  37% (12.1 GiB of 32.0 GiB) in 9s, read: 480.9 MiB/s, write: 92.8 MiB/s
2024-06-06 15:51:42 INFO:  38% (12.5 GiB of 32.0 GiB) in 12s, read: 103.9 MiB/s, write: 103.7 MiB/s
2024-06-06 15:51:45 INFO:  39% (12.8 GiB of 32.0 GiB) in 15s, read: 105.1 MiB/s, write: 96.0 MiB/s
2024-06-06 15:51:48 INFO:  41% (13.3 GiB of 32.0 GiB) in 18s, read: 186.1 MiB/s, write: 133.3 MiB/s
2024-06-06 15:51:51 INFO:  45% (14.4 GiB of 32.0 GiB) in 21s, read: 383.0 MiB/s, write: 103.9 MiB/s
2024-06-06 15:51:54 INFO:  48% (15.6 GiB of 32.0 GiB) in 24s, read: 410.5 MiB/s, write: 132.8 MiB/s
2024-06-06 15:51:57 INFO:  56% (18.1 GiB of 32.0 GiB) in 27s, read: 851.0 MiB/s, write: 149.3 MiB/s
2024-06-06 15:52:00 INFO:  76% (24.4 GiB of 32.0 GiB) in 30s, read: 2.1 GiB/s, write: 5.0 MiB/s
2024-06-06 15:52:03 INFO:  95% (30.7 GiB of 32.0 GiB) in 33s, read: 2.1 GiB/s, write: 0 B/s
2024-06-06 15:52:04 INFO: 100% (32.0 GiB of 32.0 GiB) in 34s, read: 1.3 GiB/s, write: 8.0 KiB/s
2024-06-06 15:52:04 INFO: backup is sparse: 29.53 GiB (92%) total zero data
2024-06-06 15:52:04 INFO: transferred 32.00 GiB in 34 seconds (963.8 MiB/s)
2024-06-06 15:52:06 INFO: stopping kvm after backup task
2024-06-06 15:52:07 INFO: archive file size: 654MB
2024-06-06 15:52:07 INFO: adding notes to backup
2024-06-06 15:52:07 INFO: Finished Backup of VM 201 (00:00:40)

Weiß jemand die Lösung?

 

[Chris]

Hallo,
ja es handelt sich um nicht korrekt konfigurierte Rechte am NAS. Siehe dazu z.B. https://forum.proxmox.com/threads/backup-error.143676/

 

[Josch]

Das ging ja fix. Es funktioniert.

Wieder was gelernt. Recht herzlichen Dank für die Unterstützung!