[Bug 1830685] [NEW] intel microcode breaks booting asus zenbook UX362FA

[Petr Nosek]

Public bug reported:

Hi,

  when booting kernel, it fails on message: "Loading initial ramdisk
..." and nothing happens.

  I'm using LVM and disk is encrpyted by LUKS.

  Everything works 1 month before. Today I had to reboot PC and all my
kernels has the same problem. Recovery mode does not work.

  Kernel 4.18.0 from Ubuntu 18.10 sometimes works and sometimes not (the
same message: Loading initial ramdisk...).

  I was looking for solution and adding "dis_ucode_ldr" parameter before
booting helps. Now I can boot all my kernels.

  So I think - it is problem with microcode.


  Petr

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: ubuntu-release-upgrader-core 1:19.04.16.5
ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
Uname: Linux 5.0.0-15-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Tue May 28 09:18:55 2019
InstallationDate: Installed on 2019-04-04 (53 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to disco on 2019-05-27 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug disco dist-upgrade

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1830685

Title:
  intel microcode breaks booting asus zenbook UX362FA

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Hi,

    when booting kernel, it fails on message: "Loading initial ramdisk
  ..." and nothing happens.

    I'm using LVM and disk is encrpyted by LUKS.

    Everything works 1 month before. Today I had to reboot PC and all my
  kernels has the same problem. Recovery mode does not work.

    Kernel 4.18.0 from Ubuntu 18.10 sometimes works and sometimes not
  (the same message: Loading initial ramdisk...).

    I was looking for solution and adding "dis_ucode_ldr" parameter
  before booting helps. Now I can boot all my kernels.

    So I think - it is problem with microcode.

  
    Petr

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: ubuntu-release-upgrader-core 1:19.04.16.5
  ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
  Uname: Linux 5.0.0-15-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue May 28 09:18:55 2019
  InstallationDate: Installed on 2019-04-04 (53 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to disco on 2019-05-27 (0 days ago)
  VarLogDistupgradeTermlog:

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1830685/+subscriptions