error at installation

Bug #1905474 reported by Guido Zonneveld on 2020-11-24
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubiquity (Ubuntu)

Bug Description

error at installation

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.445.1
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 24 22:44:11 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
 PATH=(custom, no user)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

Guido Zonneveld (gamzon) wrote :
Chris Guiver (guiverc) wrote :

Thank you for taking the time to report this issue and helping to make Ubuntu better.

I see squashfs errors -

Nov 24 21:43:54 ubuntu kernel: [ 538.269782] SQUASHFS error: zlib decompression failed, data probably corrupt
Nov 24 21:43:54 ubuntu kernel: [ 538.269788] SQUASHFS error: squashfs_read_data failed to read block 0x1e9c75cc

Your system is reported to have passed it's md5scan "CasperMD5CheckResult: pass", however if the device/hardware/VM you are using has insufficient ram for the setup, squashfs errors have occurred before. Providing more RAM *may* fix the issue.

Squashfs errors are usually faulty installation media (bad ISO or given the pass, flaky/bad write to media, or failing installation media holding the expanded ISO). I would re-check that.

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