How to mount LVM-Thin volume - mounting the backup of it or directly

Creating snapshot of LVM-Thin volume

lvcreate -L30G -s -n snp111 /dev/pve/vm-111-disk-1

Creating disk dump from LVM-thin snapshot

dd if=/dev/pve/snp111 of=vm111.dd

Creating logical drive for the importing the backup

lvcreate -L30G -n drv30g external

Importing the disk dump to locical drive for backup

dd if=vm111.dd of=/dev/external/drv30g

Make partitions mountable with kpartx

kpartx -a /dev/external/drv30g

Check which partitions there are:

 kpartx -l /dev/external/drv30g

ls /dev/mapper

Mount the partition you want and browse files

mount /dev/mapper/external-drv30g3 /mnt/drv30

Dismount partition after ready

umount /mnt/drv30

 Remove kpartx created partitions

 kpartx -d -v /dev/external/drv30g

kpartx part could be used without using snapshot.