Package: git-annex
Version: 3.20121017
Severity: wishlist

I tried to fetch a file from a read-only file system. This resulted in
the following output.

$ git annex get somefile
get somefile (from someremote...) 
  Unable to access these remotes: someremote

  Try making some of these repositories available:
        some-uuid -- someremote
failed
git-annex: get: 1 failed
$

After remounting the filesystem that carries someremote writeable, the
command above worked without problems.

Additionally I tried to track down the issue using strace. The search is
quick once you know, you are looking for EROFS:

mkdir("/path/to/someremote/.git/annex/transfer", 0777) = -1 EROFS (Read-only 
file system)

If it is too much work to support this use case, please improve the
error message. The current state is very confusing since I can git pull
from the read-only remote without any problems.

Helmut


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