Same problem here on Ubuntu 15.04 Server. With decrypt-script defined in crypttab system freezes while booting.
Setup was done according to this Ubuntu-Wiki article: https://wiki.ubuntuusers.de/System_verschl%C3%BCsseln/Entschl%C3%BCsseln_mit_einem_USB-Schl%C3%BCssel -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413754 Title: decrypt_keyctl crashes kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1413754/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs