After update to kenrl xxx.57 it crashes the boot

[dfgsdgfsd]

Hello,

After an automatic update of the kernel, the ubuntu stops booting. I get a black screen with a cross as mouse cursor. I am able to open a terminal using alt+f2 and make a root log in. Then it appear a meesage saying avahi-daemon and dbus-daemon and 2 more stop responding for 120 seconds. I could not do anything. Update and upgrade did not solve the problem. shutdown now -r did not reboot.... only using shift in grub to choose the kernel 56 allowed my to boot successfully and load the unity.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-56-generic 3.19.0-56.62
ProcVersionSignature: Ubuntu 3.19.0-56.62-generic 3.19.8-ckt15
Uname: Linux 3.19.0-56-generic i686
ApportVersion: 2.17.2-0ubuntu1.8
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: nuno 2791 F.... pulseaudio
 /dev/snd/controlC2: nuno 2791 F.... pulseaudio
 /dev/snd/controlC1: nuno 2791 F.... pulseaudio
Date: Thu Mar 17 09:28:39 2016
HibernationDevice: RESUME=UUID=5d859a32-7c33-4091-b280-9374560e6b92
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-56-generic root=UUID=1150db0d-d803-41bb-ae11-81d737b45532 ro quiet splash 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-3.19.0-56-generic N/A
 linux-backports-modules-3.19.0-56-generic N/A
 linux-firmware 1.143.7
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UdevLog: Error: [Errno 2] Ficheiro ou directoria inexistente: '/var/log/udev'
UpgradeStatus: Upgraded to vivid on 2016-03-03 (13 days ago)
dmi.bios.date: 08/10/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: CBQ4510H.86A.0133.2011.0810.1010
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DQ45CB
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE30148-205
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrCBQ4510H.86A.0133.2011.0810.1010:bd08/10/2011:svn:pn:pvr:rvnIntelCorporation:rnDQ45CB:rvrAAE30148-205:cvn:ct3:cvr:

[Brad Figg (brad-figg)]

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