Backup to PBS fails

[droidus]

I ran a backup job to my pbs datastore, and received the following:

...
INFO: issuing guest-agent 'fs-freeze' command
INFO: issuing guest-agent 'fs-thaw' command
ERROR: VM 102 qmp command 'backup' failed - backup register image failed: command error: No such file or directory (os error 2)
INFO: aborting backup job
ERROR: Backup of VM 102 failed - VM 102 qmp command 'backup' failed - backup register image failed: command error: No such file or directory (os error 2)
...

Now I did have the wrong "Storage" location, in which I had already run a backup, so I updated that value. Then since I was getting errors, I deleted the job, created a new one, hoping it would fix this, but it hasn't.
BTW, my first initial run was actually set to local. So am I safe to delete all the (backup files?) here: /var/lib/vz/dump ?

 

[dcsapak]

can you post the pve (pveversion -v) and pbs (proxmox-backup-manager version --verbose) versions as well as the vm config (qm config ID)?

 

[droidus]

proxmox-ve: 6.3-1 (running kernel: 5.4.78-2-pve)
pve-manager: 6.3-3 (running version: 6.3-3/eee5f901)
pve-kernel-5.4: 6.3-3
pve-kernel-helper: 6.3-3
pve-kernel-5.3: 6.1-6
pve-kernel-5.4.78-2-pve: 5.4.78-2
pve-kernel-5.4.78-1-pve: 5.4.78-1
pve-kernel-5.3.18-3-pve: 5.3.18-3
pve-kernel-5.3.18-2-pve: 5.3.18-2
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.1.0-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: residual config
ifupdown2: 3.0.0-1+pve3
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.20-pve1
libproxmox-acme-perl: 1.0.7
libproxmox-backup-qemu0: 1.0.2-1
libpve-access-control: 6.1-3
libpve-apiclient-perl: 3.1-3
libpve-common-perl: 6.3-3
libpve-guest-common-perl: 3.1-4
libpve-http-server-perl: 3.1-1
libpve-storage-perl: 6.3-6
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 4.0.6-2
lxcfs: 4.0.6-pve1
novnc-pve: 1.1.0-1
proxmox-backup-client: 1.0.8-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.4-5
pve-cluster: 6.2-1
pve-container: 3.3-3
pve-docs: 6.3-1
pve-edk2-firmware: 2.20200531-1
pve-firewall: 4.1-3
pve-firmware: 3.2-1
pve-ha-manager: 3.1-1
pve-i18n: 2.2-2
pve-qemu-kvm: 5.1.0-8
pve-xtermjs: 4.7.0-3
qemu-server: 6.3-5
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-2
zfsutils-linux: 0.8.5-pve1

root@pbs:~# proxmox-backup-manager version --verbose
Error: no such command 'version'

agent: 1
bootdisk: scsi0
cores: 2
memory: 6200
name: <vm-name>
net0: virtio=<mac>,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-lvm:vm-102-disk-0,size=32G
scsihw: virtio-scsi-pci
smbios1: uuid=faea71f0-0642-4947-849a-99a8e279832f
sockets: 2
vmgenid: 1a4c8af0-d970-4b90-9b18-fbe3aa1f55b0