Your message dated Wed, 06 Jan 2010 17:34:06 +0100
with message-id <1262795646.8578.12.ca...@hp>
and subject line Re: Bug#563957: schroot should support aufs for chroots
has caused the Debian Bug report #563957,
regarding schroot should support aufs for chroots
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
563957: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=563957
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: schroot
Severity: wishlist
It seems that aufs would be a good idea to support in schroot. It's faster
and more efficient than LVM; and should be equally reliable. We are shipping
it in our kernel (mostly because Debian Live needs it) and it just works.
For it to work you need 3 directories:
a) the directory containing the chroot
b) an empty directory storing session data (the overlay)
c) the directory where the union is mounted.
Example:
/path/to/chroot/ => the base chroot
/path/to/session-data/ => modified and new files and removals
/path/to/session/ => the union of chroot + session-data
The command:
mount -t aufs -o br=/path/to/session-data:/path/to/chroot none
/path/to/session
would create an overlay which has all the files from /path/to/chroot, but
writes all changes into /path/to/session-data. Once /path/to/session is
unmounted,
it will only contain the differences to /path/to/chroot anymore.
/path/to/session-data/ could also be equal to /path/to/session/ in which case
it contains the union while mounted and once unmounted it only contains the
differences.
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (990, 'unstable'), (350, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-trunk-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages schroot depends on:
ii libboost-filesystem1.40.0 1.40.0-5 filesystem operations (portable pa
pn libboost-program-options1.40. <none> (no description available)
pn libboost-regex1.40.0 <none> (no description available)
ii libboost-system1.40.0 1.40.0-5 Operating system (e.g. diagnostics
ii libc6 2.10.2-3 Embedded GNU C Library: Shared lib
ii libgcc1 1:4.4.2-8 GCC support library
pn liblockdev1 <none> (no description available)
ii libpam0g 1.1.0-4 Pluggable Authentication Modules l
ii libstdc++6 4.4.2-8 The GNU Standard C++ Library v3
ii libuuid1 2.16.2-0 Universally Unique ID library
pn schroot-common <none> (no description available)
schroot recommends no packages.
Versions of packages schroot suggests:
ii debootstrap 1.0.20 Bootstrap a basic Debian system
pn lvm2 <none> (no description available)
ii unzip 6.0-1 De-archiver for .zip files
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
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Description: Digital signature
--- End Message ---
--- Begin Message ---
Am Mittwoch, den 06.01.2010, 17:20 +0100 schrieb Julian Andres Klode:
> Package: schroot
> Severity: wishlist
>
> It seems that aufs would be a good idea to support in schroot. It's faster
> and more efficient than LVM; and should be equally reliable. We are shipping
> it in our kernel (mostly because Debian Live needs it) and it just works.
>
> For it to work you need 3 directories:
>
> a) the directory containing the chroot
> b) an empty directory storing session data (the overlay)
> c) the directory where the union is mounted.
>
> Example:
> /path/to/chroot/ => the base chroot
> /path/to/session-data/ => modified and new files and removals
> /path/to/session/ => the union of chroot + session-data
>
> The command:
> mount -t aufs -o br=/path/to/session-data:/path/to/chroot none
> /path/to/session
>
> would create an overlay which has all the files from /path/to/chroot, but
> writes all changes into /path/to/session-data. Once /path/to/session is
> unmounted,
> it will only contain the differences to /path/to/chroot anymore.
>
> /path/to/session-data/ could also be equal to /path/to/session/ in which case
> it contains the union while mounted and once unmounted it only contains the
> differences.
OK, it seems that this has been added in 1.3. I was just reminded that I
want this feature today, and haven't noticed that it already exists.
So, I am closing this bug again. Sorry!
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
--- End Message ---
