Hello,
I'm using proxmox VE 8.4.1 (had the same issue with the 8.3.x) and on a specific container, the backup suddendly stopped working (it worked for weeks).
I also tried a manual backup but I have the same issue as the scheduled one. I tried to backup locally or on a nfs remote backup same issue. I tried to backup another lxc but no error. I can do a snapshot without error for the same container. I have enough free space locally or on the remote backup location.
Here are the logs but they are not very explicits for me :
Is there a way to have more logs to track the issue ?
Thanks for your help,
Jean-Baptiste
I'm using proxmox VE 8.4.1 (had the same issue with the 8.3.x) and on a specific container, the backup suddendly stopped working (it worked for weeks).
I also tried a manual backup but I have the same issue as the scheduled one. I tried to backup locally or on a nfs remote backup same issue. I tried to backup another lxc but no error. I can do a snapshot without error for the same container. I have enough free space locally or on the remote backup location.
Here are the logs but they are not very explicits for me :
Code:
FO: Starting Backup of VM 104 (lxc)
INFO: Backup started at 2025-07-23 01:00:07
INFO: status = running
INFO: CT Name: paperless-ngx
INFO: including mount point rootfs ('/') in backup
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
Logical volume "snap_vm-104-disk-0_vzdump" created.
INFO: creating vzdump archive '/mnt/pve/bkp/dump/vzdump-lxc-104-2025_07_23-01_00_07.tar.zst'
INFO: tar: ./var/lib/postgresql/15/main/pg_wal/00000001000000000000004B: File shrank by 4521984 bytes; padding with zeros
INFO: Total bytes written: 7853649920 (7.4GiB, 69MiB/s)
INFO: cleanup temporary 'vzdump' snapshot
Logical volume "snap_vm-104-disk-0_vzdump" successfully removed.
ERROR: Backup of VM 104 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/bkp/dump/vzdump-lxc-104-2025_07_23-01_00_07.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/bkp/dump/vzdump-lxc-104-2025_07_23-01_00_07.tar.dat' failed: exit code 1
INFO: Failed at 2025-07-23 01:02:46
INFO: Backup job finished with errors
INFO: notified via target `Mail-jb`
TASK ERROR: job errorsIs there a way to have more logs to track the issue ?
Thanks for your help,
Jean-Baptiste
