Comment 17 for bug 1523194

I'm facing a similar (if not the same) issue.

My laptop has the following hardware:

- 500 GB HDD (TOSHIBA MQ01ACF050 (AV002D)) (/dev/sda)
- 32 GB SSD (LITEON LST-32S9G-11 SATA 32GB (ZS2110B)) (/dev/sdb)

I'm trying to install Ubuntu 19.04 on it as follow, using disk encryption:

/dev/sda:
- EFI partition: 128 MB
- unencrypted /boot: 1024 MB
- encrypted volume hosting root (/) formatted in ext4: 31 GB

/dev/sdb:
- encrypted volume hosting home partition (/home) formatted in ext4: 500 GB

I set up the system like this, but when pressing "Install Now", I see the following error pop-up:

"The attempt to mount a file system with type ext4 in Encrypted volume (sdb3_crypt) at / failed"

I click on "Continue" nevertheless, but the installer is then stuck at "Creating ext4 file system for /home in partition #1 of Encrypted volume (sda1_crypt)...".

I've attached the logs (/var/log/*) from the live session. The /var/log/partman file might be of interest.

$ dpkg -l | grep ubiquity
ii ubiquity 19.04.9 amd64 Ubuntu live CD installer
ii ubiquity-casper 1.405 all Configuration hooks for live installer
ii ubiquity-frontend-gtk 19.04.9 amd64 GTK+ frontend for Ubiquity live installer
ii ubiquity-slideshow-ubuntu 146 all Ubiquity slideshow for Ubuntu
ii ubiquity-ubuntu-artwork 19.04.9 all Ubuntu artwork for Ubiquity live installer