Package: mmdebstrap Version: 0.7.5-2.2 Severity: normal X-Debbugs-Cc: vagr...@debian.org
When mmdebstrap produces a tarball directly, it sets different tarball
options:
# tar2sqfs and genext2fs do not support extended attributes
if ($format eq "squashfs") {
warning("tar2sqfs does not support extended attributes"
. " from the 'system' namespace");
push @taropts, '--xattrs', '--xattrs-exclude=system.*';
But if you're trying to generate a squashfs image with different default
compression (e.g. zstd), you have to pipe the mmdebstrap output to
tar2sqfs. But in this case, tar is not passed the above options, as it
is generating a tarball...
Related, the default tar2sqfs options described in the man page:
By default, mmdebstrap runs tar2sqfs with "--no-skip --exportable
--compressor xz --block-size 1048576". To choose a different set of
options, pipe the output of mmdebstrap into tar2sqfs manually.
Are somewhat inconsistent with the ones used in the code:
if ($format eq 'squashfs') {
push @argv, 'tar2sqfs',
'--quiet', '--no-skip', '--force',
'--exportable',
'--compressor', 'xz',
'--block-size', '1048576',
Maybe I'm missing something, but it would be very nice to be able to at
least append to options passed to tar2sqfs (presuming it doesn't error
when passing two different --compressor arguments), rather than having
to extract them from the manpage and/or code, especially given that the
tar output changes when you create a regular tarball vs. when mmdebstrap
is aware that the eventual destination is a squashfs...
I'm also realizing that the squashfs call doesn't pass --num-jobs=0 to
tar2sqfs (similar to when creating a .tar.zst).
Apologies if I'm comingling too many seemingly related issues into a
single bug report.
As always, many thanks for mmdebstrap!
live well,
vagrant
signature.asc
Description: PGP signature
