During my tests with BackupPC_tarCreate I noticed that some files could not be 
correctly restored from BackupPC. (Shrug!).

Running "BackupPC_tarCreate -h host1 -n 887 -s /usr . | tar xf -" I get the 
following Error:

Error: padding 
/var/lib/backuppc/pc/host1/887/f%2fusr/fshare/fwebapps/fgallery/f2.3.1/fhtdocs/fmodules/fnewitems/fpo/fru.mo
 to 4154 bytes from  bytes

In XferLOG.887 I see this for the file (and its neighbors) 
same     644       0/0        3574 
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ro.po
 pool     644       0/0        4154 
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ru.mo
same     644       0/0        5177 
share/webapps/gallery/2.3.1/htdocs/modules/newitems/po/ru.po

For the other files in this directory the first word is "same"!


When I try to restore the file it gets interesting.
If I select "Download Tar archive" I get a tar archive (restore.tar) containing 
the ru.mo file which then contains 4154 bytes of 0's:
        $ ll restore.tar
        -rw-r--r-- 1 dan users 10240 Feb 19 15:33 restore.tar

        $ tar xvf restore.tar
        ./ru.mo

        $ ll ru.mo 
        -rw-r--r-- 1 dan users  4154 Jan  8  2011 ru.mo

        $ hexdump -C ru.mo
        00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  
|................|
        *
        00001030  00 00 00 00 00 00 00 00  00 00                    |..........|
        0000103a

Selecting "Download Zip archive" on the other hand works OK:

        $ ll restore.zip 
        -rw-r--r-- 1 dan users 1768 Feb 19 15:32 restore.zip

        $ unzip -v restore.zip
        Archive:  restore.zip
         Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
        --------  ------  ------- ---- ---------- ----- --------  ----
            4154  Defl:N     1644  60% 01-08-2011 17:52 c11e0302  ru.mo
        --------          -------  ---                            -------
            4154             1644  60%                            1 file

        $ unzip  restore.zip
        Archive:  restore.zip
          inflating: ru.mo                   

        $ ll ru.mo 
        -rw-r--r-- 1 dan users 4154 Jan  8  2011 ru.mo

        $ hexdump -C ru.mo | head
        00000000  de 12 04 95 00 00 00 00  15 00 00 00 1c 00 00 00  
|................|
        00000010  c4 00 00 00 1d 00 00 00  6c 01 00 00 00 00 00 00  
|........l.......|
        00000020  e0 01 00 00 1e 00 00 00  e1 01 00 00 07 00 00 00  
|................|
        00000030  00 02 00 00 5b 00 00 00  08 02 00 00 23 00 00 00  
|....[.......#...|
        ...

Have I stumbled upon a bug in BackupPC_tarCreate?

-- 
Dan Johansson, <http://www.dmj.nu>
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