I can reliably reproduce the issue when installing 19.04 in a VM. The error message after changing the passphrase in gnome-disks is:
Error changing passphrase Error changing passphrase on device /dev/sda5: Failed to add the new passphrase: Invalid argument (udisks-error-quark, 0) [Close] I cannot reproduce the issue when installing 18.04.2 in a VM, so version 2.16-2 of libblockdev doesn't appear to be affected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837437 Title: disk content permanently lost when changing LUKS password To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libblockdev/+bug/1837437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs