Virtuozzo 7 User’s Guide
2.10.6. Attaching Backups to Virtual Machines and Containers

Obtain the backup ID and file name with the prlctl backup-list -f command. For example:

# prlctl backup-list 102 -f
...
Backup_ID: {d70441dd-f077-44a0-8191-27704d4d8fdb}
...
Name: root.hdd.qcow2c
...

Attach the backup as an HDD to the Linux container you will access the backup from. You can do this with the prlctl set --backup-add command. For example:

# prlctl set MyCT --backup-add {d70441dd-f077-44a0-8191-27704d4d8fdb} \
--disk root.hdd.qcow2c
Creating hdd1 (+) sata:0 real='backup:///{d70441dd-f077-44a0-8191-27704d4d8fdb}/ \
root.hdd.qcow2c' backup='{d70441dd-f077-44a0-8191-27704d4d8fdb}' \
disk='root.hdd.qcow2c'

Using the backup ID, identify the ploop device corresponding to the backup. For example:

# ploop list | grep {d70441dd-f077-44a0-8191-27704d4d8fdb}
ploop28261 /buse/{8417a267-0919-4c8f-a31d-68671358d6a8}_ \
{d70441dd-f077-44a0-8191-27704d4d8fdb}_root.hdd.qcow2c/content

Mount the logical volume as a filesystem. For example:

# prlctl exec MyCT mount /dev/ploop28261p1 /mnt/backup1