Ubuntu 20.04 installed chrashed on entering user details screen.

[Vasil Sakarov]

I was performing minimal installation with zfs, and proprietary drivers and while I was entering my name the installer crashed.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity 20.04.15
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: pass
CasperVersion: 1.445
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 26 23:19:21 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
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)

[Sebastien Bacher (seb128)]

The error in the log is

'Apr 26 20:19:13 ubuntu ubiquity: The partition table has been altered.
Apr 26 20:19:13 ubuntu ubiquity: Calling ioctl() to re-read partition table.
Apr 26 20:19:13 ubuntu ubiquity: Syncing disks.
Apr 26 20:19:13 ubuntu ubiquity: Checking that no-one is using this disk right now ... FAILED
Apr 26 20:19:13 ubuntu ubiquity:
Apr 26 20:19:13 ubuntu ubiquity: This disk is currently in use - repartitioning is probably a bad idea.
Apr 26 20:19:13 ubuntu ubiquity: Umount all file systems, and swapoff all swap partitions on this disk.
Apr 26 20:19:13 ubuntu ubiquity: Use the --no-reread flag to suppress this check.
Apr 26 20:19:13 ubuntu ubiquity:
Apr 26 20:19:13 ubuntu ubiquity: sfdisk: Use the --force flag to overrule all checks.'

[Launchpad Janitor (janitor)]

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