[Bug 1766872] Re: 'Enable Network' in recovery mode not working in Bionic

[Eric Desrochers]

So all the remaining jobs are basically waiting for friendly-recovery to
exit to start due to the "oneshot" instruction, which make xnox patch
(revno 152) not working.

Some waiting jobs are units in which the desired network services in revno 152 depends on.
I totally understand why "oneshot" is set, but in this case it is the blocker.

If we remove "oneshot" then everything will start and make the recovery mode useless. 
So I think "oneshot" need to stay there.

The only thing then I can think of atm is to add --job-mode=ignore-
dependencies --no-ask-password and possibly extra stuff in frienly-
recovery.service to make the necessary network services to start in
recovery mode when requesting 'Enable Network'.

** Changed in: systemd (Ubuntu)
       Status: New => Won't Fix

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https://bugs.launchpad.net/bugs/1766872

Title:
  'Enable Network' in recovery mode not working in Bionic

Status in friendly-recovery package in Ubuntu:
  New
Status in systemd package in Ubuntu:
  Won't Fix

Bug description:
  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.

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