[lucid beta2] Plymouth does not honor "nosplash"

Bug #560491 reported by Steven Shiau on 2010-04-11
46
This bug affects 8 people
Affects Status Importance Assigned to Milestone
Plymouth
New
Undecided
Unassigned
plymouth (Ubuntu)
Low
Unassigned
Nominated for Lucid by Craig Ringer

Bug Description

Binary package hint: plymouth

I append "nosplash" in the boot parameters, but the plymouth theme is still shown.

How to reproduce:
1. Download ubuntu-10.04-beta2-desktop-i386.iso
2. Boot it
3. Press "Esc", then F6, then change "splash" to be "nosplash".
Then continue to boot, the plymouth theme is still shown.

Steve Langasek (vorlon) wrote :

Thank you for taking the time to report this issue and help to improve Ubuntu.

> I append "nosplash" in the boot parameters, but the plymouth theme is still shown.

Why would you use "nosplash" instead of omitting "splash"?

There is a bug in plymouth's kernel commandline parsing here, it doesn't respect word boundaries when looking for 'splash'; but I don't think "nosplash" is a documented option, either.

Changed in plymouth (Ubuntu):
importance: Undecided → Low
status: New → Incomplete
Steven Shiau (stevenshiau) wrote :

I think it was working:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574722

Yes, parsing problem, since even if "nosplash" is not supported, "nosplash" should work like "omitting splash".

Thanks.

Steve Langasek (vorlon) wrote :

> I think it was working:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574722

That's an unrelated bug report about an init script in the Debian package. Debian and Ubuntu don't share the plymouth package.

Changed in plymouth (Ubuntu):
status: Incomplete → Triaged
Craig Ringer (ringerc) wrote :

This bug is caused by a bug in Plymouth's kernel command line parsing, causing it to see "splash" on the kernel command line and thus think it's been asked to show a splash screen when "nosplash" or any other string containing "splash" as a substring appears on the command line. I've attached a patch that fixes the way plymouth looks for keywords in the kernel command line.

tags: added: testcase
tags: added: patch
Marius B. Kotsbak (mariusko) wrote :

Please open a bug report here: https://bugs.freedesktop.org/
and attach the patch there.

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