Comment 7 for bug 1310517

Thanks for the information. The problematic error is:

Error while closing stream: Vorgang fehlgeschlagen [ERROR_FAILED - Generic error condition for when any operation fails.]
Traceback (most recent call last):
[...]
  File "/usr/share/sbackup/sbackup/ar_backend/tar.py", line 1058, in getHeader
    _FOP.close_stream(fd)
  File "/usr/share/sbackup/sbackup/fs_backend/_gio_utils.py", line 866, in close_stream
    raise exceptions.FileAccessException(get_gio_errmsg(error, _("Error while closing stream")))
FileAccessException: Error while closing stream: Vorgang fehlgeschlagen [ERROR_FAILED - Generic error condition for when any operation fails.]

For whatever reason, it is not possible to close TAR's SNAR-file (used for incremental snapshots) from the parent snapshot after reading it. In your case this fails with a "Generic error". Could you please post an old logfile taken from any incremental snapshot that worked under 12.04. I want to check whether this kind of error also was reported under 12.04. Sorry for any inconvinience!