mount: /mnt/vzsnap0: special device /dev/pve/vm-104-disk-0 does not exist.

[proxmoxrks]

Hi,
I am trying to manually backup a LXC container to remote Proxmox Backup Server (store1).

# pvesm status --storage store1
Name          Type     Status           Total            Used       Available        %
store1         pbs     active       184216960         1801576       172988032    0.98%

Task viewer: VM/CT 104 - Backup

OutputStatus

INFO: starting new backup job: vzdump 104 --compress zstd --mode snapshot --storage store1 --node proxmox --remove 0
INFO: Starting Backup of VM 104 (lxc)
INFO: Backup started at 2020-07-26 13:03:36
INFO: status = stopped
INFO: backup mode: stop
INFO: ionice priority: 7
INFO: CT Name: log
INFO: creating pbs archive on storage 'store1'
mount: /mnt/vzsnap0: special device /dev/pve/vm-104-disk-0 does not exist.
umount: /mnt/vzsnap0/: not mounted.
command 'umount -l -d /mnt/vzsnap0/' failed: exit code 32
ERROR: Backup of VM 104 failed - command 'mount /dev/pve/vm-104-disk-0 /mnt/vzsnap0//' failed: exit code 32
INFO: Failed at 2020-07-26 13:03:36
INFO: Backup job finished with errors
TASK ERROR: job errors

What do I need to do to backup to remote storage 'store1'?
Thanks.

 

[Stoiko Ivanov]

Hmm - is the container running when you try to start the backup?
please post:
* the container config - pct config 104
* your storage config - cat /etc/pve/storage.cfg
* the output of lvs

 

[proxmoxrks]

Hmm - is the container running when you try to start the backup?
please post:
* the container config - pct config 104
* your storage config - cat /etc/pve/storage.cfg
* the output of lvs

No. It was stopped when I performed the backup to PBS.

arch: amd64
cores: 2
hostname: log
memory: 1024
net0: name=eth0,bridge=vmbr11,hwaddr=86:3D:7F:94:A1:5F,ip=dhcp,type=veth
ostype: ubuntu
rootfs: local-lvm:vm-104-disk-0,size=10G
swap: 512
unprivileged: 1

dir: local
        path /var/lib/vz
        content iso,vztmpl,backup

lvmthin: local-lvm
        thinpool data
        vgname pve
        content rootdir,images

pbs: store1
        datastore data
        server xxx
        content backup
        fingerprint xxx
        username xxx

# lvs
  LV                                       VG  Attr       LSize   Pool Origin                                   Data%  Meta%  Move Log Cpy%Sync Convert
  data                                     pve twi-aotz-- <94.75g                                               84.84  5.54                            
  root                                     pve -wi-ao----  39.75g                                                                                      
  snap_vm-105-disk-0_After_Installing_ub18 pve Vri---tz-k  30.00g data                                                                                 
  swap                                     pve -wi-ao----   7.00g                                                                                      
  vm-100-disk-0                            pve Vwi-a-tz--  30.00g data                                          99.79                                  
  vm-101-disk-0                            pve Vwi-a-tz--  30.00g data                                          12.54                                  
  vm-102-disk-0                            pve Vwi-aotz--  30.00g data                                          80.69                                  
  vm-103-disk-0                            pve Vwi-a-tz--  30.00g data                                          0.00                                   
  vm-104-disk-0                            pve Vwi-a-tz--  10.00g data                                          9.16                                   
  vm-105-disk-0                            pve Vwi-aotz--  30.00g data snap_vm-105-disk-0_After_Installing_ub18 56.71                                  
  vm-106-disk-0                            pve Vwi-a-tz--  20.00g data