Add a command line option to skip integrity check

[Jean-Baptiste Lallement]

There are several cases where integrity check is not an absolute requirement, for example for installations of VMs directly from a file on a local filesystem, automated installations, VMWare easy install...

It'd be nice to have an option to disable this check by passing an option on the boot command line.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: casper (not installed)
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 2 14:22:04 2020
InstallationDate: Installed on 2014-07-15 (2088 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
SourcePackage: casper
UpgradeStatus: Upgraded to focal on 2018-03-24 (739 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[lotuspsychje (lotuspsychje)]

Or for new users a GUI 'skip test' under the boot logo?

[Jean-Baptiste Lallement (jibel)]

You should already see a message like "Press CTRL+C to skip the test". This bug report is specifically about a command line argument to skip the tests in non-interactives installations.

[Brian Murray (brian-murray)]

I'm pretty sure fsck.mode=skip fixes this bug.

casper (1.443) focal; urgency=medium

  * Make fsckd under spinner/logo themes produce consistent output
  * Make plymouth-less progress output less bad
  * Use theme-specific keys: or fsckd-cancel-msg: for Ctrl+C message LP:
    #1870018
  * Add fsck.mode=skip sensitivity to casper-md5check
  * ubuntu-server: skip mounting swap (as hacked by livecd-rootfs currently)
  * Leave fsck result as a json /run/casper-md5check.json file.
  * ubuntu-server: adapt runtime netplan into cloud-config cloud.cfg
  * Fix cmdline parsing, it was always broken

 -- Dimitri John Ledkov <email address hidden> Fri, 03 Apr 2020 13:04:38 +0100