exit code 255

[shah fahad]

INFO: starting new backup job: vzdump --mailnotification always --exclude 117,327 --compress zstd --storage PBS-Live-35.100 --mode snapshot --all 1 --node pbsrv28 --quiet 1 --mailto it.operations@planetbeyond.co.uk
INFO: Starting Backup of VM 122 (lxc)
INFO: Backup started at 2024-04-17 03:45:02
INFO: status = running
INFO: CT Name: eng-ivrgw-122
INFO: including mount point rootfs ('/') in backup
INFO: excluding bind mount point mp0 ('/var/log/asterisk/') from backup (not a volume)
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
Logical volume "snap_vm-122-disk-0_vzdump" created.
INFO: creating Proxmox Backup Server archive 'ct/122/2024-04-16T22:45:02Z'
INFO: run: /usr/bin/proxmox-backup-client backup --crypt-mode=encrypt --keyfd=11 pct.conf:/var/tmp/vzdumptmp27166_122/etc/vzdump/pct.conf root.pxar:/mnt/vzsnap0 --include-dev /mnt/vzsnap0/./ --skip-lost-and-found --exclude=/tmp/?* --exclude=/var/tmp/?* --exclude=/var/run/?*.pid --backup-type ct --backup-id 122 --backup-time 1713307502 --repository root@pam@10.252.35.100:35-28
INFO: Starting backup: ct/122/2024-04-16T22:45:02Z
INFO: Client name: pbsrv28
INFO: Starting backup protocol: Wed Apr 17 03:45:03 2024
INFO: Using encryption key from file descriptor..
INFO: Encryption key fingerprint: d2:3a:02:96:60:c8:4c:f5
INFO: Downloading previous manifest (Sun Apr 14 03:45:02 2024)
INFO: Upload config file '/var/tmp/vzdumptmp27166_122/etc/vzdump/pct.conf' to 'root@pam@10.252.35.100:8007:35-28' as pct.conf.blob
INFO: Upload directory '/mnt/vzsnap0' to 'root@pam@10.252.35.100:8007:35-28' as root.pxar.didx
INFO: catalog upload error - channel closed
INFO: Error: error at "var/log/maillog": Input/output error (os error 5)
INFO: cleanup temporary 'vzdump' snapshot
Logical volume "snap_vm-122-disk-0_vzdump" successfully removed
ERROR: Backup of VM 122 failed - command '/usr/bin/proxmox-backup-client backup '--crypt-mode=encrypt' '--keyfd=11' pct.conf:/var/tmp/vzdumptmp27166_122/etc/vzdump/pct.conf root.pxar:/mnt/vzsnap0 --include-dev /mnt/vzsnap0/./ --skip-lost-and-found '--exclude=/tmp/?*' '--exclude=/var/tmp/?*' '--exclude=/var/run/?*.pid' --backup-type ct --backup-id 122 --backup-time 1713307502 --repository root@pam@10.252.35.100:35-28' failed: exit code 255
INFO: Failed at 2024-04-17 03:46:55
i am facing this issue from 2 day please help me how to solve this problem

 

[Chris]

Please do not open multiple threads for the same issue, rather keep the conversation to the already existing one by responding to that thread. For reference:
https://forum.proxmox.com/threads/exit-code-255.145204/
https://forum.proxmox.com/threads/exit-code-255.145203/

INFO: Error: error at "var/log/maillog": Input/output error (os error 5)

The IO error indicates that there is an issue with the underlying storage, please check the systemd journal on the host for further errors (via journalctl -r -b) and check the smart status of the disk backing the storage the container resides on.