Problem trying to restore a LUKS2 saved image

[delta_45]

I'm running Linux Mint 22 with clonezilla 5.5.25-1 Clonezilla SE (server
edition)

mint-tools@usb-boot:~$ apt show clonezilla
Package: clonezilla
Version: 5.5.25-1
Priority: extra

I have cloned a complete LUKS2 disk to 3 partition images. That worked well without any errors:

/home/partimag/clonezilla-5.5.25-1/dell-laptop/Kingston-SSD-DISK-IMAGES/LM22/2026-08-08/kingston-full-disk-image-2026-08-08-0818-img$ ls -1 
blkdev.list
blkid.list
clonezilla-img
dev-fs.list
disk
dmraid.table
efi-nvram.dat
Info-dmi.txt
Info-img-id.txt
Info-img-size.txt
Info-lshw.txt
Info-lspci.txt
Info-OS-prober.txt
Info-packages.txt
Info-saved-by-cmd.txt
luks-crypttab-from-OS.info
luks-dev.list
lvm_logv.list
lvm_vg_dev.list
lvm_vgmint.conf
nvme0n1-chs.sf
nvme0n1-gpt-1st
nvme0n1-gpt-2nd
nvme0n1-gpt.gdisk
nvme0n1-gpt.sgdisk
nvme0n1-mbr
nvme0n1p1.vfat-ptcl-img.zst
nvme0n1p2.ext4-ptcl-img.zst
nvme0n1p3-luksHeader.bin
nvme0n1-pt.parted
nvme0n1-pt.parted.compact
nvme0n1-pt.sf
parts
swappt-vgmint-swap_1.info
vgmint-root.ext4-ptcl-img.zst

I've got a problem trying to restore the above disk images to another empty SSD drive of the same capacity.

The GUI goes to savedisk when I want to get to restoredisk.

If I exit out of clonezilla and unmount /tmp/ocsroot_bind_root and /home/partimag I still cannot close the encryption on the LUKS2 backup drive that was previously mounted.

root@usb-boot:/home/mint-tools/clonezilla-disk-images/2026-08-01/scripts# ./umount-clonezilla-baks-drive.sh

--- Running umount -v /home/partimag ---
umount: /home/partimag: not mounted.

--- Running lsblk ---
NAME              MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINTS
sda                 8:0    0  55.9G  0 disk  
├─sda1              8:1    0     1M  0 part  
├─sda2              8:2    0   513M  0 part  /boot/efi
└─sda3              8:3    0  55.4G  0 part  /
sdb                 8:16   0 465.8G  0 disk  
└─clonezilla-baks 252:0    0 465.7G  0 crypt 
nvme0n1           259:0    0 476.9G  0 disk  


--- Running cryptsetup luksClose clonezilla-baks ---
Device clonezilla-baks is still in use.
Command failed with code -5 (device already exists or device is busy).

--- Running ls /dev/mapper ---
clonezilla-baks  control

I can't see what is stopping me from closing the encryption on the drive.

The only way for me to clear this is error:

Device clonezilla-baks is still in use.
Command failed with code -5 (device already exists or device is busy).

is to reboot the machine.

[Steven Shiau]

Not very sure...
Is that possible you can try to use Clonezilla live to reproduce this issue? Say using 3.3.3-15 or 3.3.3-32:
https://clonezilla.org/downloads.php