By downgrading plymouth from 23.360.11-0ubuntu2 to 22.02.122-4ubuntu2 by hand, the passphrase worked so it's a plymouth issue rather than cryptsetup, it seems.
https://launchpad.net/ubuntu/+source/plymouth/22.02.122-4ubuntu2/+build/27587072/+files/libplymouth5_22.02.122-4ubuntu2_amd64.deb https://launchpad.net/ubuntu/+source/plymouth/22.02.122-4ubuntu2/+build/27587072/+files/plymouth_22.02.122-4ubuntu2_amd64.deb https://launchpad.net/ubuntu/+source/plymouth/22.02.122-4ubuntu2/+build/27587072/+files/plymouth-label_22.02.122-4ubuntu2_amd64.deb https://launchpad.net/ubuntu/+source/plymouth/22.02.122-4ubuntu2/+build/27587072/+files/plymouth-theme-spinner_22.02.122-4ubuntu2_amd64.deb https://launchpad.net/ubuntu/+source/plymouth/22.02.122-4ubuntu2/+build/27587072/+files/plymouth-theme-ubuntu-text_22.02.122-4ubuntu2_amd64.deb ** Also affects: plymouth (Ubuntu) Importance: Undecided Status: New ** Changed in: cryptsetup (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to plymouth in Ubuntu. https://bugs.launchpad.net/bugs/2051478 Title: unlock passphrase doesn't work in plymouth but works in recovery mode Status in cryptsetup package in Ubuntu: Invalid Status in plymouth package in Ubuntu: New Bug description: The system suddenly stopped accepting the existing passphrase on boot. However, the passphrase is definitely correct since the same one can be used in the recovery mode and it unlocks the volume appropriately. I'm not sure which recent update brought this behavior. Last successful graphical boot: 2024-01-28 00:43:09 +0900 Fwiw, the existing passphrase was long enough and contains some special characters such as "!". The confusing part is shorter passphrase but with "!" seems to work. WORKAROUND: 1. boot into the recovery mode 2. unlock the volume in the console 3. add a new key with `cryptsetup luksAddKey /dev/nvme0n1p3` or remove "splash" from /etc/default/grub and run `update-grub` 3. reboot ProblemType: BugDistroRelease: Ubuntu 24.04 Package: cryptsetup 2:2.6.1-6ubuntu1 ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3 Uname: Linux 6.6.0-14-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.27.0-0ubuntu6 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Jan 29 15:41:03 2024 InstallationDate: Installed on 2024-01-08 (21 days ago) InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240104) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set>SourcePackage: cryptsetup UpgradeStatus: No upgrade log present (probably fresh install) cmdline: BOOT_IMAGE=/vmlinuz-6.6.0-14-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crypttab: dm_crypt-0 UUID=cfd8c295-9988-4934-a91a-460a9d16d80f none luks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/2051478/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
