Xubuntu installer opens all partitions on my PC

[corrado venturini]

During installation Xubuntu installer opens all partitions on my PC. see attached screenshot.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: subiquity (unknown)
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.497
CloudArchitecture: x86_64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
CurrentDesktop: XFCE
Date: Thu Apr 18 14:19:18 2024
LiveMediaBuild: Xubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240418)
ProcEnviron:
 LANG=C.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: subiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[corrado venturini (corradoventu)]

attaching log.zip

[Olivier Gayot (ogayot)]

Hello and thank you for your bug report,

In the syslog, I see these lines:

2024-04-18T12:05:17.346450+00:00 xubuntu udisksd[2116]: udisks daemon version 2.10.1 starting
2024-04-18T12:05:17.346584+00:00 xubuntu dbus-daemon[2067]: [system] Activating via systemd: service name='org.freedesktop.PolicyKit1' unit='polkit.service' requested by ':1.6' (uid=0 pid=2116 comm="/usr/libexec/udisks2/udisksd" label="unconfined")
2024-04-18T12:05:17.671122+00:00 xubuntu udisksd[2116]: Acquired the name org.freedesktop.UDisks2 on the system message bus
2024-04-18T12:10:11.807933+00:00 xubuntu udisksd[2116]: Mounted /dev/sdb1 at /media/xubuntu/shareb on behalf of uid 1000
2024-04-18T12:10:16.814776+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p10 at /media/xubuntu/dati on behalf of uid 1000
2024-04-18T12:10:21.814423+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p4 at /media/xubuntu/n4-nn-0407 on behalf of uid 1000
2024-04-18T12:10:31.814480+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p2 at /media/xubuntu/a2f18b5c-39c4-4e7b-8a55-1f7832381f84 on behalf of uid 1000
2024-04-18T12:10:36.814821+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p5 at /media/xubuntu/6832560b-1435-4438-a3e3-e47bb857d3cc on behalf of uid 1000
2024-04-18T12:10:41.811640+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p8 at /media/xubuntu/c38bf508-8127-4d46-9e42-4049ae26ab16 on behalf of uid 1000
2024-04-18T12:10:46.814697+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p7 at /media/xubuntu/n7-nn-0408 on behalf of uid 1000
2024-04-18T12:10:51.811967+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p3 at /media/xubuntu/n3-jammy on behalf of uid 1000
2024-04-18T12:10:56.811473+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p6 at /media/xubuntu/n6-mantic on behalf of uid 1000
2024-04-18T12:11:01.814000+00:00 xubuntu udisksd[2116]: Mounted /dev/nvme0n1p9 at /media/xubuntu/n9-nn-0410-beta on behalf of uid 1000
2024-04-18T12:11:11.816187+00:00 xubuntu udisksd[2116]: Mounted /dev/sdb3 at /media/xubuntu/datib on behalf of uid 1000
2024-04-18T12:16:03.490808+00:00 xubuntu udisksd[2116]: Mounted /dev/sda3 at /media/xubuntu/sharea on behalf of uid 1000

We have code to disable udisks2 automounting in https://github.com/canonical/ubuntu-desktop-provision/blob/e7209a3122b557962e866eafbcd67364928c0d75/ci/snap/bootstrap/local/launcher#L45

I wonder if this is absent from Xubuntu for some reason.

[Olivier Gayot (ogayot)]

I checked and the /run/udev/rules.d/90-udisks-inhibit.rules file was properly created when I clicked on the "Install Xubuntu 24.04 LTS" button.

Well... after I chose to "trust" the installer since apparently it is untrusted.

[corrado venturini (corradoventu)]

I installed today and the installer started just clicking on the desktop icon, so it was already trusted.

[Olivier Gayot (ogayot)]

My bad, I used an older ISO. Retrying now.

[Dennis Loose (dloose)]

In addition to those udev rules there's some GNOME-specific code in the front end that disables auto-mounting, screen blanking, etc via gsettings. https://github.com/canonical/ubuntu-desktop-provision/blob/5a60b958ce86bd74031fb572e54724be4cae5906/packages/ubuntu_provision/lib/src/services/desktop_service.dart

I suspect we'll need something similar for other desktop environments.