Debian Bug report logs - #587353
dash: Dash prevents system from booting

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Mickaël Leduque <mleduque@gmail.com>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: dash: Dash prevents system from booting

Date: Sun, 27 Jun 2010 21:50:40 +0200

Package: dash
Version: 0.5.6.1-1~exp0
Severity: important

Suddenly, after an upgrade, the system did not boot at all.
All I had was somthing like :

INIT 2.88
/bin/sh: Can't open /etc/init.d/rcS
....
/bin/sh: Can't open /etc/init.d/rc

It took me some time to guess what the problem was (I'm still not sure how I managed to find).
Once I did dpkg-reconfigure dash and said I wanted bash as boot shell, the system booted again.

I don't know why it suddenly didn't work. I wasn't even aware (or didn't remember) that bash was replaced at boot time.

The error messages above are strange because /etc/init.d/rc* are world readable, and /etc and /etc/init.d are world executable.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.34-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages dash depends on:
ii  debianutils                   3.2.3      Miscellaneous utilities specific t
ii  dpkg                          1.15.7.2   Debian package management system
ii  libc6                         2.11.2-2   Embedded GNU C Library: Shared lib

dash recommends no packages.

dash suggests no packages.

-- debconf information:
* dash/sh: false

Message #10 received at 587353@bugs.debian.org (full text, mbox, reply):

From: Jean-Pierre Flori <jpflori@gmail.com>

To: 587353@bugs.debian.org

Date: Fri, 2 Jul 2010 18:27:00 +0200

I had the same bug, resolved it the same way, but was too lazy to report it.
By the way it wasn't only a problem for init scripts (which however
was quite problematic, preventing the system from booting correctly),
but also for some other scripts.
Typically the iceweasel command which is a shell script didn't work,
whereas running directly the binary was not a problem.
Potentially it could affect more scripts.

Regards,
-- 
Jean-Pierre Flori

Message #15 received at 587353@bugs.debian.org (full text, mbox, reply):

From: Lars Wendler <polynomial-c@gentoo.org>

To: 587353@bugs.debian.org

Subject: Re: dash: Dash prevents system from booting

Date: Sat, 31 Jul 2010 16:34:15 +0200

[Message part 1 (text/plain, inline)]

Hi,

this error seems to be caused by 0006--INPUT-exit-127-if-command_file-is-given-
but-doesn-t.diff from dash_0.5.6.1-1~exp0.diff.gz

As soon as I remove this patch all errors are gone and dash behaves as 
expected.

Cheers
-- 
Lars Wendler (Polynomial-C)
Gentoo developer and bug-wrangler

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Message #20 received at 587353@bugs.debian.org (full text, mbox, reply):

From: Jonathan Nieder <jrnieder@gmail.com>

To: Lars Wendler <polynomial-c@gentoo.org>

Cc: 587353@bugs.debian.org

Subject: Re: Bug#587353: dash: Dash prevents system from booting

Date: Sat, 31 Jul 2010 15:48:41 -0500

forcemerge 586736 587353

Lars Wendler wrote:

> this error seems to be caused by 0006--INPUT-exit-127-if-command_file-is-given-
> but-doesn-t.diff from dash_0.5.6.1-1~exp0.diff.gz

Thanks!

For what it’s worth, I would be willing to prepare an upload to fix this
if anyone is interested in sponsoring it.  The fix is just to remove that
patch (which Gerrit has said would be fine to remove).

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