use something better than md5sum to verify image contents

Bug #1897930 reported by fossfreedom on 2020-09-30
This bug affects 1 person
Affects Status Importance Assigned to Milestone
casper (Ubuntu)

Bug Description

Apologies if this is the wrong package to report against.

When booting an ISO the check to verify the ISO integrity is run.

Pressing escape from the plymouth screen I note that md5sum is reported to be used to verify the contents.

Suggest sha256 in the future especially as sha256 is now used when publishing the ISO.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: casper 1.452
ProcVersionSignature: Ubuntu 5.8.0-20.21-generic 5.8.10
Uname: Linux 5.8.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu48
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.452
CurrentDesktop: Budgie:GNOME
Date: Wed Sep 30 15:58:38 2020
LiveMediaBuild: Ubuntu-Budgie 20.10 "Groovy Gorilla" - Beta amd64 (20200930)
 PATH=(custom, no user)
SourcePackage: casper
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.casper.conf: 2020-09-30T15:48:57.324000

fossfreedom (fossfreedom) wrote :
Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:

tags: added: iso-testing
Changed in casper (Ubuntu):
importance: Undecided → Low
summary: - Using md5sum to verify each ISO package
+ use something better than md5sum to verify image contents
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