crash during installation

[Aashish Acharya]

during installing from pendrive, unsuccessful full installation showint the problem with cdrom or harddisk

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.12
ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
Uname: Linux 4.18.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 12 07:16:31 2019
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd quiet splash --- maybe-ubiquity
LiveMediaBuild: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Chris Guiver (guiverc)]

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

This package failure looks like it was caused by a corrupted file system, or device failure. eg. look in the logs and you'll see messages like these :-

Jul 12 01:31:22 ubuntu kernel: [ 201.764811] SQUASHFS error: zlib decompression failed, data probably corrupt
Jul 12 01:31:22 ubuntu kernel: [ 201.764815] SQUASHFS error: squashfs_read_data failed to read block 0xe81c6e3
Jul 12 01:31:22 ubuntu kernel: [ 201.765971] SQUASHFS error: zlib decompression failed, data probably corrupt
Jul 12 01:31:22 ubuntu kernel: [ 201.765973] SQUASHFS error: squashfs_read_data failed to read block 0xe81c6e3

Examining the information you have given us, this does not appear to be a useful bug report so I am closing it, as it appears to be a faulty device (or bad write-to-device). If you believe I'm in error, please leave a comment explaining why and change the status back to 'new'. I suggest you use the 'check disc for defects' option to validate your media before install to ensure a good download & write.