I looked at the GNU Tar manual at
http://www.gnu.org/software/tar/manual/html_mono/tar.html - which is fairly
complete. The implication is that you cannot really do what you are asking
with tar. When you supply the M flag, it archives until it reaches the end
of the media, and then asks for another. Great for tape, not so useful for
CDs. However, I found on a mailing list post the following:
"If you specify several archive files, tar will use them in the
order given. Try something like this:
tar -c -L 50000 -f archive1 -f archive2 -f archive3 ... path
Be sure to specify enough archive files to hold the entire data.
This method does work. I recently used it in a backup script I
wrote that created multiple-volume archives.
You won't find this use of multiple -f options mentioned in the
man page, but it is in the info page. (You have to hunt around
to find it, though--the GNU tar info page is poorly organized.)"
Hope that helps.
Ben Thorp
neil sinclair
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
com> cc:
Sent by: Subject: [Scottish] End of year
BIG archive!
[EMAIL PROTECTED]
.lug.org.uk
23-12-03 10:13
Please respond to
SLUG-list
Hi -
Season's greetings to all :-)
I'm doing a big file archive of my years' work, and I want to span it over
several CDs.
To date, I have used the command
tar -czPf /home/archive_file.tar.gz \
big \
file \
list \
which \
spans \
home \
directories \
for \
several \
users
which works fine for me. I save it as a shell script, and run it from time
to
time.
Now I want to expand the file list to include many more directories, and I
end
up with about 4 gig of tar file. Oops!
If I try to use Karchiver to split the file, it bombs out (I'm on SuSE 8.2,
using Karchver 3.1.1).
The man page for tar doesn't document how to use the -M switch for a
multivolume archive, so I'd like to ask if anyone has experience of using
it,
and how I can split my archive into 650Mb segments.
No doubt there is an easy way to do what I want, and i tried Karchiver to
do
this, but no success. If there's an easier way, _please_ tell me how!!!
TIA,
Neil
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