[SOLVED] Backup to Proxmox Backup Server Fail

[kwat]

Hi:

I’m running PVE 7.3-4 and PBS 2.3-2. The PBS is a VM on the PVE just for evaluation purposes. All attempts to backup a container on the PVE to the PBS fail and I and emailed the following message. Can anyone help with what is going wrong?

Detailed backup logs:

vzdump 201 --mailto xyz@gmail.com --mailnotification always --all 0 --node pve --notes-template '{{guestname}}' --storage pbs --mode stop


201: 2023-01-12 06:56:02 INFO: Starting Backup of VM 201 (lxc)
201: 2023-01-12 06:56:02 INFO: status = running
201: 2023-01-12 06:56:02 INFO: backup mode: stop
201: 2023-01-12 06:56:02 INFO: ionice priority: 7
201: 2023-01-12 06:56:02 INFO: CT Name: turnkeyfs
201: 2023-01-12 06:56:02 INFO: including mount point rootfs ('/') in backup
201: 2023-01-12 06:56:02 INFO: including mount point mp0 ('/mnt/my-data') in backup
201: 2023-01-12 06:56:02 INFO: stopping virtual guest
201: 2023-01-12 06:56:04 INFO: creating Proxmox Backup Server archive 'ct/201/2023-01-12T11:56:02Z'
201: 2023-01-12 06:56:04 INFO: run: lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /usr/bin/proxmox-backup-client backup --crypt-mode=none pct.conf:/var/tmp/vzdumptmp222262_201/etc/vzdump/pct.conf root.pxar:/mnt/vzsnap0 --include-dev /mnt/vzsnap0/./ --include-dev /mnt/vzsnap0/./mnt/my-data --skip-lost-and-found --exclude=/tmp/?* --exclude=/var/tmp/?* --exclude=/var/run/?*.pid --backup-type ct --backup-id 201 --backup-time 1673524562 --repository root@pam@192.168.10.7:backup1 --ns Root
201: 2023-01-12 06:56:04 INFO: Starting backup: [Root]:ct/201/2023-01-12T11:56:02Z
201: 2023-01-12 06:56:04 INFO: Client name: pve
201: 2023-01-12 06:56:04 INFO: Starting backup protocol: Thu Jan 12 06:56:04 2023
201: 2023-01-12 06:56:04 INFO: storing login ticket failed: $XDG_RUNTIME_DIR must be set
201: 2023-01-12 06:56:04 INFO: Error: namespace not found
201: 2023-01-12 06:56:04 INFO: restarting vm
201: 2023-01-12 06:56:05 INFO: guest is online again after 3 seconds
201: 2023-01-12 06:56:05 ERROR: Backup of VM 201 failed - command 'lxc-usernsexec -m u:0:100000:65536 -m g:0:100000:65536 -- /usr/bin/proxmox-backup-client backup '--crypt-mode=none' pct.conf:/var/tmp/vzdumptmp222262_201/etc/vzdump/pct.conf root.pxar:/mnt/vzsnap0 --include-dev /mnt/vzsnap0/./ --include-dev /mnt/vzsnap0/./mnt/my-data --skip-lost-and-found '--exclude=/tmp/?*' '--exclude=/var/tmp/?*' '--exclude=/var/run/?*.pid' --backup-type ct --backup-id 201 --backup-time 1673524562 --repository root@pam@192.168.10.7:backup1 --ns Root' failed: exit code 255

 

[UdoB]

201: 2023-01-12 06:56:04 INFO: run: ... --repository root@pam@192.168.10.7:backup1 --ns Root' failed: exit code 255

201: 2023-01-12 06:56:04 INFO: Error: namespace not found

Check if "Root" (literally!) as a sub-namespace exists on the server. If you mean "/" ommit it completely - it is default, I believe.

 

[kwat]

No, Root did NOT exist as a sub-namespace on PBS. I added pve as a subname space and edited storage.cfg to reference it the pbs entry and the backup completed successfully. Since I am new to PBS I will experiment more before marking the thread SOLVED.

Thanks for your help.