[Bug 1453912] Re: systemd does not unlock dm-crypt password

[James Johnston]

*** This bug is a duplicate of bug 1432265 ***
    https://bugs.launchpad.net/bugs/1432265

Unfortunately this is pretty easy to reproduce.  I installed Ubuntu
Server 15.10, set up an additional partition and formatted it with LUKS,
and added to crypttab.  That is all it takes to make the boot process
hang while it asks for a password.

It appears that if the partition is unlocked in the initramfs, then it
works.  The initramfs cryptsetup is ok.  But if initramfs doesn't unlock
it - i.e. it's not the boot drive - then it's up to systemd to do so,
which doesn't work.

Oddly enough, if I reboot then I can momentarily see the password prompt
just before the system reboots.  Of course by then it's too late. :(

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https://bugs.launchpad.net/bugs/1453912

Title:
  systemd does not unlock dm-crypt password

Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  Since upgrading from version 14.10 to Kubuntu 15.04, my system does
  not boot normally any more.

  Maybe it's only a stupid oversight on my part, but not being a systemd
  pro, I'm currently at a loss of how to debug this any further.

  Hints and pointers to appropriate documentation are welcome!

  Kubuntu 15.04 quickly boots to a specific point where it seems to try
  to enable a dm-crypt partition which also carries /home, beside other
  data, and simply stalls.

  I'm not asked to enter my crytpdisk password and I also cannot enter
  it blindly without being asked.

  You can see the point where it stalls in the attached "screenshot"
  (photo of my screen).

  I can then press Ctrl+Alt+Del to cleanly restart the system but I
  could not find a way to get beyond this point with systemd.

  Using the alternative boot option with upstart works flawlessly.
  (Although booting with this boot option is really slow and it takes a
  while to reach the graphical login screen - it basically looks as if
  the system is waiting for some name resolving timeouts during boot,
  but that's a different issue, if've not debugged it further and maybe
  it's just gone once systemd works to boot my machine.)

  Further info about my setup:

  $ cat /etc/crypttab                                                                                                
  crypt /dev/mapper/main-cryptstore none luks,noearly,discard  

  $ mount | egrep crypt
  /dev/mapper/crypt on /mnt/crypt type ext4 (rw,relatime,data=ordered)
  /dev/mapper/crypt on /home type ext4 (rw,relatime,data=ordered)
  /dev/mapper/crypt on /var/lib/mysql type ext4 (rw,relatime,data=ordered)

  Here the first entry is the actual mount point while the other mount
  points are bind mounts:

  $ cat /etc/fstab | egrep crypt
  /dev/mapper/crypt       /mnt/crypt      ext4    defaults        0       2                                                           
  /mnt/crypt/home                 /home           none    bind    0       0                                                           
  /mnt/crypt/var_lib_mysql        /var/lib/mysql  none    bind    0       0

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-7ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Mon May 11 20:28:18 2015
  MachineType: Sony Corporation SVS13A3W9ES
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/main-root ro quiet init=/sbin/upstart
  SourcePackage: systemd
  SystemdDelta:
   [EXTENDED]   /lib/systemd/system/systemd-timesyncd.service -> /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
   
   1 overridden configuration files found.
  UpgradeStatus: Upgraded to vivid on 2015-04-28 (13 days ago)
  dmi.bios.date: 03/13/2013
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: R1021C8
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnInsydeCorp.:bvrR1021C8:bd03/13/2013:svnSonyCorporation:pnSVS13A3W9ES:pvrC60BRBTW:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVS13A3W9ES
  dmi.product.version: C60BRBTW
  dmi.sys.vendor: Sony Corporation

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