Appears to be random - sometimes it mounts, sometimes it doesn't. I think it will be necessary to use UUID's?
$ uname -a Linux .. 3.8.0-32-generic #47~precise1-Ubuntu SMP Wed Oct 2 16:19:35 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/crypttab cryptswap1 /dev/sda7 /dev/urandom swap,cipher=aes-cbc-essiv:sha256 $ sudo cryptdisks_start cryptswap1 * Starting crypto disk... * cryptswap1 (skipped, device /dev/sda7 does not exist)... [fail] I think part of the issue is that /etc/fstab uses UUID and /dev/sdX# can change on boot (e.g. from sda# to sdb#). My fstab (UUID's modified slightly): # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda5 during installation UUID=8ed19201-fabf-4364-a507-XYZ / ext4 errors=remount-ro 0 1 # swap was on /dev/sda6 during installation # /dev/sda7/ none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 $ sudo blkid /dev/sdb1: LABEL="SYSTEM" UUID="C2E04BEXYZ" TYPE="ntfs" /dev/sdb2: LABEL="Win7" UUID="32B682AXYZ" TYPE="ntfs" /dev/sdb4: LABEL="RECOVERY" UUID="120C19F4XYZ" TYPE="ntfs" /dev/sdb5: LABEL=".." UUID="8ed19201-fabf-4364-a507-XYZ" TYPE="ext4" <=== /dev/sdb6: LABEL="..." UUID="6C94DF5A9XYZ" TYPE="ntfs" x Note that all of those are are mounted as /dev/sdb#. If I boot with and external USB drive, that drive is mounted as /dev/sda#: /dev/sda1: LABEL="GGNTSF" UUID="4868D7FF68XYZ" TYPE="ntfs" /dev/sda5: UUID="27bd7267-ab0b-48f4-8a56-XYZ" TYPE="crypto_LUKS" /dev/mapper/udisks-luks-uuid-27bd7267-ab0b-48f4-8a56-XYZ-uid1000: LABEL="ext4" UUID="86d20931-6b90-4082-9b14-XYZ" TYPE="ext4" Now if I modify crypttab: $ cat /etc/crypttab # cryptswap1 /dev/sda7 /dev/urandom swap,cipher=aes-cbc-essiv:sha256 cryptswap1 UUID= /dev/urandom swap,cipher=aes-cbc-essiv:sha256 and $ sudo mount -a $ sudo cryptdisks_start cryptswap1 * Starting crypto disk... * cryptswap1 (starting).. Attaching loopback device failed (loop device with autoclear flag is required). device-mapper: rename ioctl failed: No such device or address Command failed * cryptswap1 (started)... [ OK ] $ sudo dmsetup status udisks-luks-uuid-27bd7267-ab0b-48f4-8a56-67f8713b56ea-XYZ crypt It is attempting to use the UUID of /dev/sda5, the external USB drive partition rather than /dev/sdb5: LABEL=".." UUID="8ed19201-fabf-4364-a507-XYZ" TYPE="ext4" - the partition that I booted into. I'll reboot without the external USB drive connected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/953875 Title: Encrypted swap no longer mounted at bootup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/953875/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
