doc/forum/Problem_with_bup:_cannot_lock_refs.mdwn

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+Hi!
+
+Using bup for storing seems a good idea to save space, but I still have a problem when trying to copy files to my local git repo.
+I have two partitions:
+- /Data (NTFS)
+- / (ext4)
+
+I turned the directory /Data/Audio into a git-annex repo, and cloned it into /home/me/AudioClone
+I added the remote bup to AudioClone by doing:
+git annex initremote mybup type=bup encryption=none buprepo=
+
+But when I try to copy some files that I have previously got by "git annex get" by doing:
+git annex copy /home/me/AudioClone/someartist/somealbum --to mybup
+it fails and tells me:
+
+copy Order To Die/01 Morituri Te Salutant.flac (to mybup...) 
+fatal: Cannot lock the ref 'refs/heads/WORM-s7351771-m1318841909--01 Morituri Te Salutant.flac'.
+Traceback (most recent call last):
+  File "/usr/lib/bup/cmd/bup-split", line 170, in <module>
+    git.update_ref(refname, commit, oldref)
+  File "/usr/lib/bup/bup/git.py", line 835, in update_ref
+    _git_wait('git update-ref', p)
+  File "/usr/lib/bup/bup/git.py", line 930, in _git_wait
+    raise GitError('%s returned %d' % (cmd, rv))
+bup.git.GitError: git update-ref returned 128
+
+for each file, **except for the album cover file**, which is a simple JPG that bup doesn't try to split. This one gets copied nicely but the big FLAC files don't.
+
+I tried to restart my session, in case bup adds my username to a group or something.