[Pkg-sysvinit-devel] Bug#716923: Bug#716923: sysv-rc 2.88dsf-42 breaks {, c}debootstrapping

[Steve Langasek]

On Sun, Jul 14, 2013 at 10:04:54PM +0100, Roger Leigh wrote:
> tags 716923 + patch
> thanks

> On Sun, Jul 14, 2013 at 10:41:18PM +0200, Stefan Lippers-Hollmann wrote:
> > Trying to bootstrap a system using cdebootstrap (or debootstrap) fails 
> > since sysv-rc 2.88dsf-42 entered the archive (it did succeed just 
> > minutes before with the previous mirror sync, using sysv-rc 2.88dsf-41)
> > with this error message:

> > # cdebootstrap -v --arch=amd64 --flavour=minimal sid /mnt/ http://ftp.de.debian.org/debian/
> > […]
> > O: dpkg: warning: ignoring pre-dependency problem!
> > O: Unpacking util-linux (from .../util-linux_2.20.1-5.5_amd64.deb) ...
> > P: Unpacking package util-linux
> > O: Can't locate File/Path.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/site_perl .) at /usr/sbin/update-rc.d line 8.
> > O: BEGIN failed--compilation aborted at /usr/sbin/update-rc.d line 8.
> > O: dpkg: error processing /var/cache/bootstrap/util-linux_2.20.1-5.5_amd64.deb (--unpack):
> > O:  subprocess new pre-installation script returned error exit status 2
> > O: Selecting previously unselected package e2fsprogs.

> Does the following patch help?  It looks like it might have always been
> missing the perl dependency.

Absolutely not.  sysv-rc is transitively essential as a Pre-Depends of
sysvinit; making it depend on perl for core functionality will introduce
dependency loops, because perl is deliberately NOT part of the transitively
essential set.  update-rc.d should only require interfaces provided by
perl-base.

The claim in the comment that File::Path is 'in core since Perl 5.001' is
bogus.  The only modules that are permitted are the ones in perl-*base*. 
File::Path is in perl-*modules*.  Why are people making changes unsupervised
to sysvinit without understanding how the Debian base system works?

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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