Hang trying to enter single-user mode (runlevel 1)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
plymouth (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: upstart
"telinit 1" causes a hang. The root shell prompt never appears. The screen is left showing the boot/shutdown splash.
To reproduce:
1. Log into a Gnome Classic (no acceleration) session.
Make sure root has a valid password (run 'sudo passwd root')
2. Ctl-Alt-F1 to switch to a VT (in VirtualBox, press HostKey+F1)
3. In the VT, log in as root
4. telinit 1
Results:
The purple "Ubuntu" boot/shutdown splash screen appears, the dots advance for a while, then stop with all dots white.
Nothing else happens.
I suspect that the upstart scripts are forgetting to remove the shutdown spash screen, and so I can't see the console prompt (just a guess).
NOTE: I'm running in a VirtualBox VM. I need to enter single-user mode to remount the root fs read-only, to prepare to run "zerofree" (which zeroes unused blocks, allowing the VM's disk image file to be compressed during backups...)
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: upstart 0.6.7-4
ProcVersionSign
Uname: Linux 2.6.37-12-generic x86_64
Architecture: amd64
Date: Wed Jan 19 13:49:50 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101202)
ProcEnviron:
LANGUAGE=
LANG=en_US.UTF-8
LC_MESSAGES=
SHELL=/bin/bash
SourcePackage: upstart
affects: | upstart (Ubuntu) → plymouth (Ubuntu) |
tags: | added: runlevel1 |
I'm seeing the same issue with ubuntu 12.04 and 14.04, cant get to a command prompt to perform single-user maintenance.