Re: [BackupPC-users] Tar exited with error 36096
2013-06-27 15:49:39
Thanks Craig and Stephen for taking the
time to dive into this, and excuse for my late reply (have been
out of town, could not access the backupserver).
My tar version is 1.22 (2009) as far as I could test, it supports
file and link-names longer than 100 characters. It's part of
ubuntu server 11.04.
Although the Dropbox directory generates errors, which suggests
characterset-problems, some regular native ext4 directories (with
longer directory/file names) also produce errors. I have the
impression it is not an characterset problem.
For some reason I CAN make incremental backups (which do report
errors on the long directory names). But the process does not
crash.
One detail which may be important. I use an external USB disk
(2GB), mounted on /home/backuppc. I have linked /var/lib/backuppc
-> /home/backuppc. My last full backup is of januari 2013,
without any errors. The directory structure has not changed
significantly (the directories producing errors now did exist at
that time, but were fully accessible, no size-limits present). The
system design has not changed since then, neither have the system
been updated.
Is there a way to increase the debug reporting level to get more
clues?
On 06/25/2013 04:42 AM, Craig Barratt wrote:
I find
it interesting that the client file path is being cut off ~=
100 characters.
That's a very good observation and an important
clue. The file header in any tar file is limited to 100
characters, and there is a special extension (basically
another dummy file header with a payload containing the real
long path) to allow longer paths. The same mechanism is used
for long soft link targets.
So either this a very old version of tar, as you
suggest, or the extension header isn't being recognized
properly.
Craig
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