[Bug 2039268] Re: When upgrading to Mantic, it fails to install snap firmware-updater
Nick Rosbrook
2039268 at bugs.launchpad.net
Tue Oct 31 19:37:07 UTC 2023
I ran an upgrade from lunar to mantic where I had snapd from lunar-
proposed installed before the upgrade, and left mantic-proposed enabled
so that snapd from mantic-proposed would be installed during the
upgrade. In that test, firmware-updater was successfully installed.
nr at clean-lunar-amd64:~$ do-release-upgrade -d
Checking for a new Ubuntu release
= Welcome to Ubuntu 23.10 'Mantic Minotaur' =
The Ubuntu team is proud to announce Ubuntu 23.10 'Mantic Minotaur'.
To see what's new in this release, visit:
https://wiki.ubuntu.com/ManticMinotaur/ReleaseNotes
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and easy install, regular releases, a tight selection of excellent
applications installed by default, and almost any other software you
can imagine available through the network.
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Continue [yN] y
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1,271 kB]
Fetched 1,272 kB in 0s (0 B/s)
authenticate 'mantic.tar.gz' against 'mantic.tar.gz.gpg'
extracting 'mantic.tar.gz'
[sudo] password for nr:
Sorry, try again.
[sudo] password for nr:
Sorry, try again.
[sudo] password for nr:
sudo: 3 incorrect password attempts
nr at clean-lunar-amd64:~$
nr at clean-lunar-amd64:~$ cd /tmp/ubuntu-release-upgrader-8clgr67q/
nr at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q$ sudo su
[sudo] password for nr:
root at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q# cat <<EOF >/etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list
# Enable Ubuntu proposed archive
deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe
EOF
root at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q# cat <<EOF >/etc/apt/preferences.d/proposed-updates
Package: *
Pin: release a=$(lsb_release -cs)-proposed
Pin-Priority: 500
EOF
root at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q# apt update && apt install snapd -y
Hit:1 http://security.ubuntu.com/ubuntu lunar-security InRelease
Hit:2 http://archive.ubuntu.com/ubuntu lunar InRelease
Hit:3 http://archive.ubuntu.com/ubuntu lunar-updates InRelease
Get:4 http://archive.ubuntu.com/ubuntu lunar-proposed InRelease [255 kB]
Get:5 http://archive.ubuntu.com/ubuntu lunar-proposed/restricted i386 Packages [1,316 B]
Get:6 http://archive.ubuntu.com/ubuntu lunar-proposed/restricted amd64 Packages [123 kB]
Get:7 http://archive.ubuntu.com/ubuntu lunar-proposed/restricted Translation-en [23.1 kB]
Get:8 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages [81.1 kB]
Get:9 http://archive.ubuntu.com/ubuntu lunar-proposed/main i386 Packages [23.5 kB]
Get:10 http://archive.ubuntu.com/ubuntu lunar-proposed/main Translation-en [22.1 kB]
Get:11 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 DEP-11 Metadata [208 B]
Get:12 http://archive.ubuntu.com/ubuntu lunar-proposed/main DEP-11 48x48 Icons [29 B]
Get:13 http://archive.ubuntu.com/ubuntu lunar-proposed/main DEP-11 64x64 Icons [29 B]
Get:14 http://archive.ubuntu.com/ubuntu lunar-proposed/main DEP-11 64x64 at 2 Icons [29 B]
Get:15 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse i386 Packages [748 B]
Get:16 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse amd64 Packages [748 B]
Get:17 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse Translation-en [584 B]
Get:18 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse amd64 DEP-11 Metadata [2,196 B]
Get:19 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse DEP-11 48x48 Icons [6,500 B]
Get:20 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse DEP-11 64x64 Icons [26.9 kB]
Get:21 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse DEP-11 64x64 at 2 Icons [29 B]
Get:22 http://archive.ubuntu.com/ubuntu lunar-proposed/universe i386 Packages [7,688 B]
Get:23 http://archive.ubuntu.com/ubuntu lunar-proposed/universe amd64 Packages [23.2 kB]
Get:24 http://archive.ubuntu.com/ubuntu lunar-proposed/universe Translation-en [9,920 B]
Get:25 http://archive.ubuntu.com/ubuntu lunar-proposed/universe amd64 DEP-11 Metadata [2,024 B]
Get:26 http://archive.ubuntu.com/ubuntu lunar-proposed/universe DEP-11 48x48 Icons [5,087 B]
Get:27 http://archive.ubuntu.com/ubuntu lunar-proposed/universe DEP-11 64x64 Icons [5,695 B]
Get:28 http://archive.ubuntu.com/ubuntu lunar-proposed/universe DEP-11 64x64 at 2 Icons [29 B]
Fetched 621 kB in 6s (103 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
34 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-headers-6.2.0-26 linux-headers-6.2.0-26-generic linux-image-5.19.0-46-generic linux-image-6.2.0-26-generic linux-modules-5.19.0-46-generic
linux-modules-6.2.0-26-generic linux-modules-extra-5.19.0-46-generic linux-modules-extra-6.2.0-26-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
snapd
1 upgraded, 0 newly installed, 0 to remove and 33 not upgraded.
Need to get 26.2 MB of archives.
After this operation, 4,096 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 snapd amd64 2.59.1+23.04ubuntu1.2 [26.2 MB]
Fetched 26.2 MB in 8s (3,219 kB/s)
(Reading database ... 248469 files and directories currently installed.)
Preparing to unpack .../snapd_2.59.1+23.04ubuntu1.2_amd64.deb ...
Unpacking snapd (2.59.1+23.04ubuntu1.2) over (2.59.1+23.04ubuntu1.1) ...
Setting up snapd (2.59.1+23.04ubuntu1.2) ...
snapd.failure.service is a disabled or a static unit not running, not starting it.
snapd.snap-repair.service is a disabled or a static unit not running, not starting it.
Failed to restart snapd.mounts-pre.target: Operation refused, unit snapd.mounts-pre.target may be requested by dependency only (it is configured to r
efuse manual start/stop).
See system logs and 'systemctl status snapd.mounts-pre.target' for details.
Could not execute systemctl: at /usr/bin/deb-systemd-invoke line 145.
Processing triggers for gnome-menus (3.36.0-1.1ubuntu1) ...
Processing triggers for man-db (2.11.2-1) ...
Processing triggers for dbus (1.14.4-1ubuntu1) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...
Processing triggers for desktop-file-utils (0.26-1ubuntu5) ...
root at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q# sed -i 's/lunar/mantic/g' /etc/apt/preferences.d/proposed-updates
root at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q# exit
exit
nr at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q$ vi DistUpgradeController.py
nr at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q$ grep -A 10 "Disable proposed on upgrade to a development release." DistUpgradeController.py
# Disable proposed on upgrade to a development release.
#if (not entry.disabled and self.options
# and self.options.devel_release == True and
# "%s-proposed" % self.fromDist in entry.dist):
# logging.debug("upgrade to development release, disabling proposed")
# entry.dist = "%s-proposed" % self.toDist
# entry.comment += _("Not for humans during development stage of release %s") % self.toDist
# entry.disabled = True
# continue
# handle upgrades from a EOL release and check if there
nr at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q$ sudo -E ./mantic --frontend=DistUpgradeViewText
[...]
Processing snap replacements
refreshing snap core22
installing snap firmware-updater
refreshing snap gnome-42-2204
refreshing snap gtk-common-themes
refreshing snap snap-store
refreshing snap snapd-desktop-integration
refreshing snap firefox
Searching for obsolete software
Reading state information... Done
Remove obsolete packages?
90 packages are going to be removed.
Continue [yN] Details [d]y
[...]
System upgrade is complete.
Restart required
To finish the upgrade, a restart is required.
If you select 'y' the system will be restarted.
Continue [yN] N
nr at clean-lunar-amd64:/tmp/ubuntu-release-upgrader-8clgr67q$ apt policy snapd
snapd:
Installed: 2.60.4+23.10.1
Candidate: 2.60.4+23.10.1
Version table:
*** 2.60.4+23.10.1 500
500 http://archive.ubuntu.com/ubuntu mantic-proposed/main amd64 Packages
100 /var/lib/dpkg/status
2.60.4+23.10 500
500 http://archive.ubuntu.com/ubuntu mantic/main amd64 Packages
--
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Foundations Bugs, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/2039268
Title:
When upgrading to Mantic, it fails to install snap firmware-updater
Status in snapd package in Ubuntu:
Fix Committed
Status in ubuntu-release-upgrader package in Ubuntu:
Confirmed
Status in snapd source package in Lunar:
Fix Committed
Status in snapd source package in Mantic:
Fix Committed
Bug description:
[Impact]
While upgrading to Mantic the following message is reported:
installing snap firmware-updater
error: cannot perform the following tasks:
- Automatically connect eligible plugs and slots of snap "firmware-updater" (internal error: auto-connect of &{"firmware-updater:desktop-legacy" "snapd:desktop-legacy"} failed: snap "snapd" has no slot named "desktop-legacy")
[Test case]
Confirming the failure:
$ lxc launch ubuntu:lunar lp-2039268
Creating lp-2039268
Starting lp-2039268
$ lxc exec lp-2039268 bash
# sed -i -e's/lunar/mantic/' /etc/apt/sources.list && apt update && apt install -y systemd
# ls -l /run/systemd/generator/snap.mount
-rw-r--r-- 1 root root 274 Oct 18 05:49 /run/systemd/generator/snap.mount
# ^D
$ lxc delete --force lp-2039268
Confirming the fix:
$ lxc launch ubuntu:lunar lp-2039268
Creating lp-2039268
Starting lp-2039268
$ lxc exec lp-2039268 bash
# sed -i -e's/lunar/mantic/' /etc/apt/sources.list && apt update && apt install -y systemd
# ls -l /run/systemd/generator/snap.mount
ls: cannot access '/run/systemd/generator/snap.mount': No such file or directory
# ^D
$ lxc delete --force lp-2039268
[Where problems could occur]
This fix changes how snapd detects at boot time whether a bind remount of /snap with different mount options is necessary. In unusual circumstances where the rootfs mount options are not what we expect by default in Ubuntu, AND the systemd generator is blocked by a custom security policy from reading /proc/1/mounts, it would get the wrong answer, fail to generate the mount unit under necessary circumstances, and regress the behavior of snapd.
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