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[Bug 1574178] Re: 4.4.0-21 "gave up waiting for root device"

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apport information

** Tags added: apport-collected xenial

** Description changed:

  On a Lenovo A740, after upgrading to Xenial I have to downgrade to
  kernel 4.2.0-35 in order to be able to boot at all.
  
  
  My current /etc/default/grub:
  
  # If you change this file, run 'update-grub' afterwards to update
  # /boot/grub/grub.cfg.
  # For full documentation of the options in this file, see:
  #   info -f grub -n 'Simple configuration'
  
  #GRUB_DEFAULT=0
  #KBU: 4.4.0 doesn't find root :(((
  GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 4.2.0-35-generic"
  #GRUB_HIDDEN_TIMEOUT=0
  GRUB_HIDDEN_TIMEOUT_QUIET=true
  GRUB_TIMEOUT=5
  GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
  #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
  GRUB_CMDLINE_LINUX_DEFAULT=""
  GRUB_CMDLINE_LINUX="noprompt persistent"
  
  # Uncomment to enable BadRAM filtering, modify to suit your needs
  # This works with Linux (no patch required) and with any kernel that obtains
  # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
  #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
  
  # Uncomment to disable graphical terminal (grub-pc only)
  #GRUB_TERMINAL=console
  
  # The resolution used on graphical terminal
  # note that you can use only modes which your graphic card supports via VBE
  # you can see them in real GRUB with the command `vbeinfo'
  #GRUB_GFXMODE=640x480
  
  # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
  #GRUB_DISABLE_LINUX_UUID=true
  
  # Uncomment to disable generation of recovery mode menu entries
  #GRUB_DISABLE_RECOVERY="true"
  
  # Uncomment to get a beep at grub start
  #GRUB_INIT_TUNE="480 440 1"
  
  
  
  This is the same system as
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422
  
- See attached image for what the screen looks like when trying to boot
- 4.4. My USB keyboard also stops working there so I can't actually type
- anything into the busybox.
+ See attached image for what the screen looks like when trying to boot 4.4. My USB keyboard also stops working there so I can't actually type anything into the busybox.
+ --- 
+ ApportVersion: 2.20.1-0ubuntu2
+ Architecture: amd64
+ AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/by-path', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
+ DistroRelease: Ubuntu 16.04
+ HibernationDevice: RESUME=UUID=dc4226ca-3ebe-4611-95ac-c1a0ccbb7d7a
+ InstallationDate: Installed on 2015-06-04 (325 days ago)
+ InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
+ MachineType: LENOVO F0AM
+ Package: linux (not installed)
+ ProcFB: 0 inteldrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=91533e8a-b5ca-4447-8c4a-b5bb2d095238 ro noprompt persistent
+ ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
+ PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
+ RelatedPackageVersions:
+  linux-restricted-modules-4.2.0-35-generic N/A
+  linux-backports-modules-4.2.0-35-generic  N/A
+  linux-firmware                            1.157
+ RfKill:
+  
+ Tags:  xenial xenial
+ Uname: Linux 4.2.0-35-generic x86_64
+ UnreportableReason: The report belongs to a package that is not installed.
+ UpgradeStatus: Upgraded to xenial on 2016-04-23 (1 days ago)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ _MarkForUpload: False
+ dmi.bios.date: 09/30/2014
+ dmi.bios.vendor: LENOVO
+ dmi.bios.version: O00KT19AUS
+ dmi.board.name: INVALID
+ dmi.board.vendor: LENOVO
+ dmi.board.version: 31900058 STD
+ dmi.chassis.type: 13
+ dmi.chassis.vendor: LENOVO
+ dmi.chassis.version: Chassis Version
+ dmi.modalias: dmi:bvnLENOVO:bvrO00KT19AUS:bd09/30/2014:svnLENOVO:pnF0AM:pvrLenovoA740:rvnLENOVO:rnINVALID:rvr31900058STD:cvnLENOVO:ct13:cvrChassisVersion:
+ dmi.product.name: F0AM
+ dmi.product.version: Lenovo A740
+ dmi.sys.vendor: LENOVO

** Attachment added: "AlsaInfo.txt"
   https://bugs.launchpad.net/bugs/1574178/+attachment/4646243/+files/AlsaInfo.txt

-- 
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https://bugs.launchpad.net/bugs/1574178

Title:
  4.4.0-21 "gave up waiting for root device"

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  On a Lenovo A740, after upgrading to Xenial I have to downgrade to
  kernel 4.2.0-35 in order to be able to boot at all.

  
  My current /etc/default/grub:

  # If you change this file, run 'update-grub' afterwards to update
  # /boot/grub/grub.cfg.
  # For full documentation of the options in this file, see:
  #   info -f grub -n 'Simple configuration'

  #GRUB_DEFAULT=0
  #KBU: 4.4.0 doesn't find root :(((
  GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 4.2.0-35-generic"
  #GRUB_HIDDEN_TIMEOUT=0
  GRUB_HIDDEN_TIMEOUT_QUIET=true
  GRUB_TIMEOUT=5
  GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
  #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
  GRUB_CMDLINE_LINUX_DEFAULT=""
  GRUB_CMDLINE_LINUX="noprompt persistent"

  # Uncomment to enable BadRAM filtering, modify to suit your needs
  # This works with Linux (no patch required) and with any kernel that obtains
  # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
  #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

  # Uncomment to disable graphical terminal (grub-pc only)
  #GRUB_TERMINAL=console

  # The resolution used on graphical terminal
  # note that you can use only modes which your graphic card supports via VBE
  # you can see them in real GRUB with the command `vbeinfo'
  #GRUB_GFXMODE=640x480

  # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
  #GRUB_DISABLE_LINUX_UUID=true

  # Uncomment to disable generation of recovery mode menu entries
  #GRUB_DISABLE_RECOVERY="true"

  # Uncomment to get a beep at grub start
  #GRUB_INIT_TUNE="480 440 1"



  This is the same system as
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422

  See attached image for what the screen looks like when trying to boot 4.4. My USB keyboard also stops working there so I can't actually type anything into the busybox.
  --- 
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/by-path', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=dc4226ca-3ebe-4611-95ac-c1a0ccbb7d7a
  InstallationDate: Installed on 2015-06-04 (325 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
  MachineType: LENOVO F0AM
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=91533e8a-b5ca-4447-8c4a-b5bb2d095238 ro noprompt persistent
  ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-35-generic N/A
   linux-backports-modules-4.2.0-35-generic  N/A
   linux-firmware                            1.157
  RfKill:
   
  Tags:  xenial xenial
  Uname: Linux 4.2.0-35-generic x86_64
  UnreportableReason: The report belongs to a package that is not installed.
  UpgradeStatus: Upgraded to xenial on 2016-04-23 (1 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: False
  dmi.bios.date: 09/30/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: O00KT19AUS
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058 STD
  dmi.chassis.type: 13
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnLENOVO:bvrO00KT19AUS:bd09/30/2014:svnLENOVO:pnF0AM:pvrLenovoA740:rvnLENOVO:rnINVALID:rvr31900058STD:cvnLENOVO:ct13:cvrChassisVersion:
  dmi.product.name: F0AM
  dmi.product.version: Lenovo A740
  dmi.sys.vendor: LENOVO

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