[Bug-tar] tar -d Skipping to next header

[Alex Kempshall]

I've downloaded 1.16.1, 1.15.91 and 1.15.90 from -

http://www.gnu.org/software/tar/

All exhibit this  problem -

First check version -

279 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar --version
tar (GNU tar) 1.15.90
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of
it under the terms of
the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by John Gilmore and Jay Fenlason.



create a tar -

280 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar -cvpz -f
/tmp/db2bkup.tar.gz .

the results are -

./
./S150000.0.db2inst1.NODE0000.CATN0000.20051005113914.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051005133735.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051006071126.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051010154146.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051019181945.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051021094155.001
./primed/
./primed/S150000.0.db2inst1.NODE0000.CATN0000.20051102205000.001
./iefFinal/
./iefFinal/primed/
./iefFinal/primed/S150000.0.db2inst1.NODE0000.CATN0000.20051109132736.001
./iefFinal/1stMonth/
./iefFinal/1stMonth/S150000.0.db2inst1.NODE0000.CATN0000.20051109190609.001
./iefFinal/1stWeek/
./iefFinal/5thWeek/
./iefFinal/5thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111134148.001
./iefFinal/9thWeek/
./iefFinal/9thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111152701.001
./iefFinal/10thWeek/
./iefFinal/10thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111165346.001

compare using the -d flag -

281 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar -dvpz -f
/tmp/db2bkup.tar.gz .

the command fails -

./
./S150000.0.db2inst1.NODE0000.CATN0000.20051005113914.001
/home/alex/Downloads/tar/usr/local/bin/tar: Skipping
to next header
/home/alex/Downloads/tar/usr/local/bin/tar: Error exit
delayed from previous errors

Extract using the -x flag -

287 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar -xvpz -f
/tmp/db2bkup.tar.gz .

./
./S150000.0.db2inst1.NODE0000.CATN0000.20051005113914.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051005133735.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051006071126.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051010154146.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051019181945.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051021094155.001
./primed/
./primed/S150000.0.db2inst1.NODE0000.CATN0000.20051102205000.001
./iefFinal/
./iefFinal/primed/
./iefFinal/primed/S150000.0.db2inst1.NODE0000.CATN0000.20051109132736.001
./iefFinal/1stMonth/
./iefFinal/1stMonth/S150000.0.db2inst1.NODE0000.CATN0000.20051109190609.001
./iefFinal/1stWeek/
./iefFinal/5thWeek/
./iefFinal/5thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111134148.001
./iefFinal/9thWeek/
./iefFinal/9thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111152701.001
./iefFinal/10thWeek/
./iefFinal/10thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111165346.001


files extracted successfully

However version 1.15.1 and previous versions doesn't
exhibit the above problem - it just works!

check version
283 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar --version
tar (GNU tar) 1.15.1


perform tar on directory

285 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar -cvpz -f
/tmp/db2bkup.tar.gz .

./
./S150000.0.db2inst1.NODE0000.CATN0000.20051005113914.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051005133735.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051006071126.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051010154146.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051019181945.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051021094155.001
./primed/
./primed/S150000.0.db2inst1.NODE0000.CATN0000.20051102205000.001
./iefFinal/
./iefFinal/primed/
./iefFinal/primed/S150000.0.db2inst1.NODE0000.CATN0000.20051109132736.001
./iefFinal/1stMonth/
./iefFinal/1stMonth/S150000.0.db2inst1.NODE0000.CATN0000.20051109190609.001
./iefFinal/1stWeek/
./iefFinal/5thWeek/
./iefFinal/5thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111134148.001
./iefFinal/9thWeek/
./iefFinal/9thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111152701.001
./iefFinal/10thWeek/
./iefFinal/10thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111165346.001

compare tar with -d flag

286 /home/db2inst1/db2_backups$
/home/alex/Downloads/tar/usr/local/bin/tar -dvpz -f
/tmp/db2bkup.tar.gz .

./
./S150000.0.db2inst1.NODE0000.CATN0000.20051005113914.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051005133735.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051006071126.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051010154146.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051019181945.001
./S150000.0.db2inst1.NODE0000.CATN0000.20051021094155.001
./primed/
./primed/S150000.0.db2inst1.NODE0000.CATN0000.20051102205000.001
./iefFinal/
./iefFinal/primed/
./iefFinal/primed/S150000.0.db2inst1.NODE0000.CATN0000.20051109132736.001
./iefFinal/1stMonth/
./iefFinal/1stMonth/S150000.0.db2inst1.NODE0000.CATN0000.20051109190609.001
./iefFinal/1stWeek/
./iefFinal/5thWeek/
./iefFinal/5thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111134148.001
./iefFinal/9thWeek/
./iefFinal/9thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111152701.001
./iefFinal/10thWeek/
./iefFinal/10thWeek/S150000.0.db2inst1.NODE0000.CATN0000.20051111165346.001

To recap 

the -d flag on versions subsequent to 1.15.1 generate
the "Skipping to next header" message at the tar stops
even though an extract using -x flag works.

Version 1.15.1 and versions prior to this work as
expected.


The file it seems to fail on is a 4.6GB db2 backup
file.

Alex