You have been subscribed to a public bug by Eric Desrochers (slashd):
This bug has been noticed after the introduction of the fix of (LP:
#1682637) in Bionic.
I have notice a block in Bionic when choosing 'Enable Network' option in
recovery mode on different bionic vanilla system and I can reproduce all
the time.
I also asked colleagues to give it a try (for a second pair of eye on
this) and they have the same result as me.
Basically, when choosing 'Enable Network' it get block or lock.
If we hit 'ctrl-c', then a shell arrive and the system has network connectivity.
Here's what I find while enabling "systemd.debug-shell=1" from vtty9 :
# pstree
systemd-+-bash---pstree
|-recovery-menu---network---systemctl---systemd-tty-ask
|-systemd-journal
....
# ps
root 486 473 0 08:29 tty1 00:00:00 /bin/systemd-tty-ask-password-agent
root 473 486 0 08:29 tty1 00:00:00 systemctl start dbus.socket
root 486 283 0 08:29 tty1 00:00:00 /bin/sh /lib/recovery-
mode/options/network
Additionally,
systemd-analyze blame:
"Bootup is not yet finished. Please try again later"
"systemctl list-jobs" is showing a 100 jobs in 'waiting' state
The only 'running' unit is friendly-recovery.service :
52 friendly-recovery.service start running
The rest are all "waiting". My understanding is that "waiting" units
will be executed only after those which are "running" are completed.
Which explain why the "ctlr-c" allow the boot to continue.
All the systemd special unit important at boot-up are waiting.
7 sysinit.target start waiting
3 basic.target start waiting
.....
Seems like systemd is not fully initialise in 'Recovery Mode' and
doesn't allow any 'systemctl start' operation without
password/passphrase request, which I suspect is hidden by the recovery-
mode menu.
** Affects: friendly-recovery (Ubuntu)
Importance: Medium
Assignee: Eric Desrochers (slashd)
Status: In Progress
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: Won't Fix
** Affects: friendly-recovery (Ubuntu Xenial)
Importance: Medium
Assignee: Eric Desrochers (slashd)
Status: Confirmed
** Affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: Won't Fix
** Affects: friendly-recovery (Ubuntu Bionic)
Importance: Medium
Assignee: Eric Desrochers (slashd)
Status: Confirmed
** Affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: Won't Fix
** Affects: friendly-recovery (Ubuntu Cosmic)
Importance: Medium
Assignee: Eric Desrochers (slashd)
Status: In Progress
** Affects: systemd (Ubuntu Cosmic)
Importance: Undecided
Status: Won't Fix
** Affects: friendly-recovery (Ubuntu Dd-series)
Importance: Medium
Assignee: Eric Desrochers (slashd)
Status: Confirmed
** Affects: systemd (Ubuntu Dd-series)
Importance: Undecided
Status: Won't Fix
** Tags: id-5afda46ded21519fcf26f22b rls-bb-incoming sts
--
'Enable Network' in recovery mode not working properly.
https://bugs.launchpad.net/bugs/1766872
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