[Bug 1968845] Re: Upgrade to 22.04 from 20.04 ends with dbus installation asking for a reboot
Seth Arnold
1968845 at bugs.launchpad.net
Wed Apr 20 00:39:28 UTC 2022
Here's the postinst I've got for that package. Maybe the
reload_dbus_config() could use a --reply-timeout=5000 or something?
Thanks
$ cat /fst/trees/ubuntu/main/d/dbus/dbus_1.12.20-2ubuntu4/debian/dbus.postinst
#!/bin/sh
# Copyright © 2003 Colin Walters <walters at debian.org>
# Copyright © 2006 Sjoerd Simons <sjoerd at debian.org>
set -e
MESSAGEUSER=messagebus
MESSAGEHOME=/var/run/dbus
LAUNCHER=/usr/lib/dbus-1.0/dbus-daemon-launch-helper
# This is what the init script would do, but it's simpler (and less
# dependent on sysvinit vs. Upstart vs. etc.) if we do it directly.
reload_dbus_config() {
[ -S /var/run/dbus/system_bus_socket ] || return 0
dbus-send --print-reply --system --type=method_call \
--dest=org.freedesktop.DBus \
/ org.freedesktop.DBus.ReloadConfig > /dev/null || true
}
if [ "$1" = triggered ]; then
reload_dbus_config
exit 0
fi
if [ "$1" = configure ]; then
adduser --system \
--quiet \
--home /nonexistent \
--no-create-home \
--disabled-password \
--group "$MESSAGEUSER"
if ! dpkg-statoverride --list "$LAUNCHER" >/dev/null; then
dpkg-statoverride --update --add root "$MESSAGEUSER" 4754 "$LAUNCHER"
fi
# This is idempotent, so it's OK to do every time. The system bus' init
# script does this anyway, but you also have to do this before a session
# bus will work, so we do this here for the benefit of people starting
# a temporary session bus in a chroot
dbus-uuidgen --ensure
fi
if [ "$1" = configure ] && [ -n "$2" ]; then
# On upgrades, we only reload config, and don't restart (restarting the
# system bus is not supported by upstream). The code added by
# dh_installinit -r creates a start action, below.
# Recommend a reboot if there is a dbus-daemon running in the same root
# as us. Deliberately not using anything init-related here, to be
# init-agnostic: if we get a false positive (at least one dbus-daemon
# is running but it isn't the system bus) that isn't the end of the
# world, because it's probably a session bus, so the user needs to
# log out and back in anyway.
#
# Debian has /usr/bin/dbus-daemon, Ubuntu has /bin/dbus-daemon.
# Look for both.
if pidof -c /bin/dbus-daemon /usr/bin/dbus-daemon >/dev/null; then
echo "A reboot is required to replace the running dbus-daemon." >&2
echo "Please reboot the system when convenient." >&2
# trigger an update notification that recommends a reboot
# (used by unattended-upgrades etc.)
touch /var/run/reboot-required || true
if ! grep -Fqsx dbus /run/reboot-required.pkgs; then
echo dbus >> /run/reboot-required.pkgs || true
fi
# same thing for the older update-notifier interface
[ -x /usr/share/update-notifier/notify-reboot-required ] && \
/usr/share/update-notifier/notify-reboot-required || true
fi
# Clean up old compatibility symlinks that were used to upgrade from
# Debian 8 to Debian 9. This can be dropped after Debian 10 is released.
for bus in system session; do
conf="/etc/dbus-1/${bus}.conf"
exp_target="/usr/share/dbus-1/${bus}.conf"
target="$(readlink -f "${conf}")" || continue
if [ -h "${conf}" ] && [ "_${target}" = "_${exp_target}" ]; then
rm -f "${conf}"
fi
done
fi
#DEBHELPER#
# Do this after the debhelper-generated bits so that dpkg-maintscript-helper
# will have finished moving configuration files around. We only need to do
# this for upgrades, not new installations.
if [ "$1" = configure ] && [ -n "$2" ]; then
reload_dbus_config
fi
# We don't start dbus.service in postinst, so ensure dbus.socket is running
if [ "$1" = configure ] && [ -d /run/systemd/system ]; then
systemctl try-restart sockets.target || true
fi
--
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https://bugs.launchpad.net/bugs/1968845
Title:
Upgrade to 22.04 from 20.04 ends with dbus installation asking for a
reboot
Status in dbus package in Ubuntu:
New
Bug description:
Upgrading on a virtual machine from 20.04 to 22.04. I have had this
happen twice now, I got one upgrade done without this bug.
Basically the package installation stops at dbus package asking for a
reboot as it was unable to upgrade as dbus-daemon was running. And
rebooting at this stage obviously will cause a non-functioning system.
Added a screenshot of the upgrade window.
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