[regression] 3.13.0-72.115 unable to boot with root FS under LUKS

[Simon Déziel]

Early in boot, I see this:

 Mounting root file system ... Begin: Running /script/local-top ... /script/local-top/cryptroot: line 24: dirname not found

Then get prompted to enter the LUKS password. Once I entered the right password, nothing happens, not even any disk activity.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-72-generic 3.13.0-72.115
ProcVersionSignature: Ubuntu 3.13.0-71.114-generic 3.13.11-ckt29
Uname: Linux 3.13.0-71-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: simon 4916 F.... pulseaudio
Date: Sat Dec 5 15:18:05 2015
HibernationDevice: RESUME=UUID=8e7a3220-158f-413b-81b2-55b236bb1f3f
InstallationDate: Installed on 2014-01-26 (677 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
MachineType: LENOVO 2516CTO
ProcEnviron:
 LANGUAGE=en_US
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-71-generic root=/dev/mapper/crypt-root ro quiet splash cryptopts=target=crypt,source=/dev/sda1,lvm=crypt-root possible_cpus=4 nmi_watchdog=0 vt.handoff=7
PulseList:
 Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
 No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-71-generic N/A
 linux-backports-modules-3.13.0-71-generic N/A
 linux-firmware 1.127.19
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/14/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 6IET85WW (1.45 )
dmi.board.name: 2516CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6IET85WW(1.45):bd02/14/2013:svnLENOVO:pn2516CTO:pvrThinkPadT410:rvnLENOVO:rn2516CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2516CTO
dmi.product.version: ThinkPad T410
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Simon Déziel (sdeziel)]

It turns out that the "dirname not found" error is a red herring because it also occurs with previous kernel and doesn't prevent booting.

With the problematic kernel, giving the wrong password doesn't ask to enter the password so it seems it's not even verified. So whatever the password used, the boot sequence just stops, nothing happens.

[Luis Henriques (henrix)]

I suspect this could be a duplicate of bug #1522766. Could you please try 3.13.0-73.116? It should be copied into -proposed soon, but for now it's only available in the kernel team PPA. You can download the .deb files here:

https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/8393136

You'll need to install (at least):
linux-image-3.13.0-73-generic_3.13.0-73.116_amd64.deb
linux-image-extra-3.13.0-73-generic_3.13.0-73.116_amd64.deb

[Simon Déziel (sdeziel)]

Luis, the kernel 3.13.0-73.116 fixes the issue, thanks!