[Help-tar] Tar - incremental backups and dumpdir

[Piotr Szlązak]

Hi!
I've got problem with tar incremental backups.

I'm making full backup every week:
#tar -c -z --listed-incremental=archive.0.snar -f archive.0.tgz
crucial_data/*

And every day between full backups I'm making incremental backups.
Every incremental backup is based on full backup:
#cp archive.0.snar archive.1.snar
#tar  -c -z --listed-incremental=archive.1.snar -f archive.1.tgz
crucial_data/*

Everything works great. In case on emergency I've to extract full
backup and the newest incremental backup.

But there is a little problem. I've read in tar manual that
incremental archive should contain information about deleted or
renamed files. Everything should be in Dumdir section:
http://www.gnu.org/software/tar/manual/html_section/tar_87.html

But when I extract my archive I'm getting all files, even those
deleted.

#tar -x -z --listed-incremental=/dev/null -f archive.0.tgz
#tar -x -z --listed-incremental=/dev/null -f archive.n.tgz

I cannot also list my archive as it is described in manual:
http://www.gnu.org/software/tar/manual/html_node/tar_88.html#DOCF12
That means a list with dumpdir information about every file in the
archive.

Does anybody knows what I'm doing wrong? Is there a problem in
archiving or in restoring?

I'm using tar in 1.19 version and gnu internal archive format.
-- 
petee