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Debian/Ubuntu: Suggest backing up the LUKS header

Richard Laager 2019-04-14 15:35:43 -05:00
parent 7256853d6e
commit db9006eeb5
3 changed files with 27 additions and 0 deletions
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9
Debian-Buster-Root-on-ZFS.md

@ -606,6 +606,15 @@ If you prefer the graphical boot process, you can re-enable it now. If you are u
* Ignore errors from `osprober`, if present. * Ignore errors from `osprober`, if present.
9.5 Optional: For LUKS installs only, backup the LUKS header:
$ sudo cryptsetup luksHeaderBackup /dev/disk/by-id/scsi-SATA_disk1-part4 \
--header-backup-file luks1-header.dat
Store that backup somewhere safe (e.g. cloud storage). It is protected by your LUKS passphrase, but you may wish to use additional encryption.
**Hint:** If you created a mirror or raidz topology, repeat this for each luks volume (`luks2`, etc.).
## Troubleshooting ## Troubleshooting
### Rescuing using a Live CD ### Rescuing using a Live CD

9
Debian-Stretch-Root-on-ZFS.md

@ -616,6 +616,15 @@ If you prefer the graphical boot process, you can re-enable it now. If you are u
* Ignore errors from `osprober`, if present. * Ignore errors from `osprober`, if present.
9.5 Optional: For LUKS installs only, backup the LUKS header:
$ sudo cryptsetup luksHeaderBackup /dev/disk/by-id/scsi-SATA_disk1-part4 \
--header-backup-file luks1-header.dat
Store that backup somewhere safe (e.g. cloud storage). It is protected by your LUKS passphrase, but you may wish to use additional encryption.
**Hint:** If you created a mirror or raidz topology, repeat this for each luks volume (`luks2`, etc.).
## Troubleshooting ## Troubleshooting
### Rescuing using a Live CD ### Rescuing using a Live CD

9
Ubuntu-18.04-Root-on-ZFS.md

@ -637,6 +637,15 @@ If you prefer the graphical boot process, you can re-enable it now. If you are u
* Ignore errors from `osprober`, if present. * Ignore errors from `osprober`, if present.
9.5 Optional: For LUKS installs only, backup the LUKS header:
$ sudo cryptsetup luksHeaderBackup /dev/disk/by-id/scsi-SATA_disk1-part4 \
--header-backup-file luks1-header.dat
Store that backup somewhere safe (e.g. cloud storage). It is protected by your LUKS passphrase, but you may wish to use additional encryption.
**Hint:** If you created a mirror or raidz topology, repeat this for each luks volume (`luks2`, etc.).
## Troubleshooting ## Troubleshooting
### Rescuing using a Live CD ### Rescuing using a Live CD