[Bug 1875548] Re: Its not easy to determine how to skip the filesystem check

[Mauricio Faria de Oliveira]

The first issue in comment #18 (fsck.mode=skip is ignored if it's
last on cmdline) is in progress in bug 1892369 (comment 34) [1].

The second issue (ctrl-c doesn't abort the disk check) is also
described there, and unfortunately it's a limitation which was
introduced as part of another change, apparently (not a bug),
and is no longer an option.

...

Currently, to skip the disk integrity check (casper-md5check),
please insert 'fsck.mode=skip' before '---' in kernel cmdline
(i.e., make sure it's not the last string).

[1]
https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1892369/comments/34

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https://bugs.launchpad.net/bugs/1875548

Title:
  Its not easy to determine how to skip the filesystem check

Status in casper package in Ubuntu:
  Fix Released

Bug description:
  I see that Live Ubuntu 20.04 is plagued by disk checking on boot.

  Not just with Live USB but with Persistent USB also.

  If not fast enough to cancel with ctl-c it starts on
  filesystem.squashfs and runs until over 90% complete.

  Very irritating. There have been quite a few complaints on Ask Ubuntu
  already.

  If it was just a run once it would not be so bad.

  Is there some way to get rid of this or is it a bug we have to live
  with?

  Perusing Ask Ubuntu everyday for many years I have never seen anybody
  ask for such a feature.

  A run once filesystem check might have its uses on a Live installer
  drive but is not needed on a Persistent utility drive.

  The only alternative I see is to use a Full install USB drive were
  automatic disk checking is not run.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.18
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CasperVersion: 1.445
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr 28 06:07:32 2020
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: No upgrade log present (probably fresh install)

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