$ git push --thin
fatal: '/libertas-2.6.git': unable to chdir or not a git archive
fatal: The remote end hung up unexpectedly
error: failed to push to 'ssh://git.infradead.org/libertas-2.6.git'
$ ssh git.infradead.org
Last login: Thu Nov 29 03:47:10 2007 from pd95f9645.dip0.t-ipconnect.de
Please make sure you use 'alternates' in your git repositories; don't
have a completely separate copy of all the kernel history which is in
/srv/git/linux-2.6.git already.

dwmw2
2007-08-31
[schurig@bombadil ~]$ id
uid=527(schurig) gid=527(schurig) groups=204(libertas),527(schurig)
$ ll -d /srv/git/libertas-2.6.git
drwxrwsr-x 9 marcelo libertas 4096 2007-11-28 11:23 /srv/git/libertas-2.6.git