clonezilla luks backup

luks_backup.txt

backup luks partition

1. Boot clonezilla

2. Drop into the command line

3. open the encrypted external drive partition

  cryptsetup luksOpen /dev/sda3 backup

4. mount as partimag

  mount /dev/mapper/backup /home/partimag

5. open the internal encrypted partitions

  cryptsetup luksOpen /dev/sda3 crypt1
  (enter pass)
  cryptsetup luksOpen /dev/sdb1 crypt2
  (enter pass)

6. lvm should automatically appear in /dev/mapper
  e.g. /dev/mapper/fedora-home
       /dev/mapper/fedora-root
  etc
  if not can try vgchange -ay

7. Perform backup with partclone

  partclone.ext4 -c -s /dev/mapper/fedora-root -o /home/partimag/backup/fedora-root-2017-09-24.img

8. When complete can restore to an image file to be able to mount and read:

  touch /mnt/backup/restored.img
  partclone.restore -C -s /home/partimag/backup/fedora-root-2017-09-24.img -O /mnt/backup/restored.img
  mount -t ext4 /mnt/backup/restored.img /mnt/data -o loop

  try to restore to a different device especially if the image is large as the data transfer speed will be halved. It took 8 hours for a 1.4TB partition that was   50% used.

9. If unable to mount image because of "ext4 bad geometry" then fix the image:

  e2fsck -f /mnt/backup/restored.img
  resize2fs /mnt/backup/restored.img
  
  then try to mount again