Public bug reported:
During installation of 20.04 beta:
Advanced partitioning attempts to setup encrypted / and swap partitions,
attempting to proceed beyond partitioning UI results in failure to mount
crypted volume as /target.
Further checks from terminal show no valid filesystem exists on the open
dmcrypt volume.
Reproduction details:
- Existing windows installation partitions, consuming ~1/2 of a 1TB NVMe
- Create new 1gb EXT4 formatted, non-encrypted /boot partition
- Create new 70gb encrypted partition
+ Edit the new partition to be / and formatted ext4
- Create new 16gb encrypted partition
+ Edit the new partition to be type swap
- Click the button to continue installation
Expected results:
- Installation continues
Actual results:
- Time zone selection screen appears, but message pops up indicating a failure
to mount the encrypted / volume on /target
- Unable to click 'Go Back' or 'Continue' or the 'X' at the top of the modal
dialog
- Unable to click anything on the time zone selection window underneath (
greyed out )
Additionally:
- Attempts to re-use existing encrypted partitions was 100% unsuccessful
+ Tried clicking one, setting it as a raw encrypted partition, setting the
password that existed on it, but the installer never presented details about
that crypted filesystem's contents
+ Tried pre-opening the crypted volumes from terminal using cryptsetup,
which did allow the installation to complete, but was unable to boot due to
missing crypttab entries in initramfs.
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Tags: focal
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https://bugs.launchpad.net/bugs/1871500
Title:
Installer fails when using encrypted partitions
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