Comment 21 for bug 1682637

@xnox,

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' the user got block or lock.
If we hit 'ctrl-c', then a shell arrive and the system has network connectivity.

Here's my colleague observation about this behaviour so far :

"
I also observe a lock. Plus I enabled the systemd debug-shell so I got some info:

pstree:

    systemd(1)-+-bash(391)---pstree(928)
               |-lvmetad(438)
               |-recovery-menu(711)---network(897)---systemctl(899)---systemd-tty-ask(900)
               |-systemd-journal(406)
               `-systemd-udevd(432)

I also observed that the behavior is the same with and without /e/n/i config, so it's not related to the config itself most likely.

So I also straced the systemd-tty-ask process:

    strace: Process 900 attached
    restart_syscall(<... resuming interrupted restart_syscall ...>
"