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Re: Files for a tar (FC3)



Daniel Vogel wrote:
For a few days i've trying to figure out how to make backup of my machine.

Since i have to duplicate it, i thought on tar'ing directories so i can store untar them on the other mahcine, (wich is far away from this one) and store it to have a safe copy.

But i still cannot tar var directory. In particular i have lots of problems with /var/named/chroot/proc wich is filled with an incredible ammount of stuff, like:
...

The question is, is there any of this files-directories that i can erase to make a tar? by now im having problems with some files from the -number- directories like:
lrwxrwxrwx 1 root root 0 sep 12 01:57 exe
wich is not linked to anything


what can i do?

It looks like the /proc file system, don't try to back up this!

Make a backup of one file system at a time, e.g. separate backups
of /boot and /.

Use the "-l" option to tar to make it stay in the same file system:

tar cvlSf /dev/nrtape /boot
tar cvlSf /dev/nrtape /
etc.

It will complain about the leading /, this can be ignored.

The "-S" option makes tar handle sparse files more efficiently,
the file /var/log/lastlog is an example of this:

# tar cf /tmp/test1.tar /var/log/lastlog
# tar cSf /tmp/test2.tar /var/log/lastlog
# ls -l /tmp/test*.tar
-rw-r--r--  1 root root 603996160 Sep 12 08:17 /tmp/test1.tar
-rw-r--r--  1 root root     10240 Sep 12 08:17 /tmp/test2.tar

Mogens

PS: Don't steal another thread when sending mails to
a mailing list.

--
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk crc dk Homepage: http://www.crc.dk


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