Your message dated Mon, 30 May 2011 20:58:09 +0100
with message-id <[email protected]>
and subject line Re: [buildd-tools-devel] Bug#434396: Bug#434396: sbuild: LVM
snapshot -source chroot not correctly managed
has caused the Debian Bug report #434396,
regarding sbuild: LVM snapshot -source chroot not correctly managed
to be marked as done.
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--
434396: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=434396
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: sbuild
Version: 0.56
Severity: normal
Hi,
I use a LVM snapshop to build my package. To update (and after
upgrade) chroot, I would like to be able to type:
/usr/share/sbuild/updatechroot sid-source
I've the following config :
* /etc/schroot/schroot.conf
[sid]
type=lvm-snapshot
location=/sid
groups=sbuild,root
root-groups=sbuild
source-root-groups=sbuild
device=/dev/atsina/sbuilder
lvm-snapshot-options=--size 2G
[...]
* /proc/mounts
[...]
/dev/mapper/atsina-sbuilder /srv/sbuilder ext3 rw,data=ordered 0 0
* ls -l /src/sbuilder
total 24
drwxr-xr-x 22 root root 4096 2007-05-09 16:04 etch
drwx------ 2 root root 16384 2007-07-10 09:29 lost+found
drwxr-xr-x 22 root root 4096 2007-07-17 13:02 sid
You can note that the 'location' parameter in schroot.conf refer (as
stated by the documentation) to the RELATIVE path inside the LVM
filesystem.
"schroot -c sid bash" gives me a bash shell in a snapshot
"schroot -c sid-source bash" gives me a bash shell in the original
filesystem.
In /usr/share/perl5/Sbuild/Chroot.pm, in function "_setup_options",
you have the test:
if (defined($chroots{$distribution}) &&
-d $chroots{"$distribution"}->{'Location'}) {
Of course, "/sid" does not exists on my system. So the command
"/usr/share/sbuild/updatechroot sid-source" fails with the error message
"sid-source chroot does not exist" and leave me with bind-mounted
directores that I've to manually unmount :
$ mount
/dev/mapper/atsina-sbuilder on /var/lib/schroot/mount/sid-source type ext3
(rw,sync,user_xattr)
proc on /var/lib/schroot/mount/sid-source/sid/proc type proc (rw)
/dev/pts on /var/lib/schroot/mount/sid-source/sid/dev/pts type none (rw,bind)
tmpfs on /var/lib/schroot/mount/sid-source/sid/dev/shm type tmpfs (rw)
/home on /var/lib/schroot/mount/sid-source/sid/home type none (rw,bind)
/tmp on /var/lib/schroot/mount/sid-source/sid/tmp type none (rw,bind)
To work-around this problem, I tried to add this symlink:
"/sid -> /srv/sbuilder/sid" on my root filesystem.
It works.
I also tried to modify the test in Chroot.pm.
In this case, it fails later with:
Error in tempfile() using /sid//var/lib/sbuild/apt.conf.XXXXXX: Parent
directory (/sid//var/lib/sbuild/) is not a directory at
/usr/share/perl5/Sbuild/Chroot.pm line 145
So $chroots{"$distribution"}->{'Location'} seems to be used at several
places.
Best regards,
Vincent
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.6.22-1-686 (SMP w/1 CPU core)
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 sbuild depends on:
ii adduser 3.104 add and remove users and groups
ii apt 0.7.3 Advanced front-end for dpkg
ii dctrl-tools 2.9.3 Command-line tools to process Debi
ii dpkg-dev 1.14.5 package building tools for Debian
ii perl 5.8.8-7 Larry Wall's Practical Extraction
ii perl-modules 5.8.8-7 Core Perl modules
ii postfix [mail-transport-agent 2.4.3-1 High-performance mail transport ag
ii schroot 1.1.5-1 Execute commands in a chroot envir
Versions of packages sbuild recommends:
ii debootstrap 1.0.1 Bootstrap a basic Debian system
ii fakeroot 1.7.1 Gives a fake root environment
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 1.4.8
On Tue, Nov 09, 2010 at 02:02:49PM +0000, Roger Leigh wrote:
> On Tue, Nov 09, 2010 at 01:22:30PM +0100, Vincent Danjean wrote:
> > On 09/11/2010 12:00, Roger Leigh wrote:
> > [lots of useful infos about chroot namespaces]
> >
> > Thanks for all these infos. Note that schroot.conf(5) still talk about
> > the -source suffix and not about the namespaces.
>
> Thanks, I'll make sure that documentation is updated, and also update the
> sbuild docs. I'll keep the bug open just for now to remind me to do this.
The schroot documentation is now updated, so I'll close the bug now.
Regards,
Roger
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