Ubuntu
cryptsetup package

  1. Bug #1979159
  2. Comment #27

Comment 27 for bug 1979159

Revision history for this message
Benjamin Drung (bdrung) wrote : Re: Cannot unlock encrypted root after upgrading to 22.04

I could reproduce the issue with encrypted volumes created as following:

```
sudo cryptsetup luksFormat --hash=ripemd160 $volume
sudo cryptsetup luksFormat --hash=whirlpool $volume
```

I developed the attached patch to include legacy.so for root or /usr volumes that use the hash ripemd160 or whirlpool. Successfully tested in a VM:

* Use Ubuntu 22.04 installer
* Prepare encrypted disk layout (first partition /boot, second for /) and go one step back
* Then change hash in terminal
```
sudo cryptsetup close vda2_crypt
sudo cryptsetup luksFormat --hash=whirlpool /dev/vda2
sudo cryptsetup luksOpen /dev/vda2 vda2_crypt
sudo mkfs.ext4 /dev/mapper/vda2_crypt
```
* Continue and complete installation
* Ensure that /target/etc/crypttab exists
* Apply workaround from bug description
* Reboot into installation
* Apply attached patch
* Remove workaround
* Run "update-initramfs -u" and reboot
* Systems boots correcty