News Group Posts

multiple tar volumes to disk

Subject: Re: Multiple Volumes with tar
From: John Wingate <johnww@worldpath.net>
Date: Sun, Feb 9, 2003 12:50 PM

Otto v. Ruelps <bierplauze@hotmail.com> wrote:
> On 8 Feb 2003 13:12:24 GMT, davide@yahoo.com wrote:

>>Otto v. Ruelps <bierplauze@hotmail.com> wrote:
>>> thanks, but this param doesn�t work
>>
>>What do you mean with "doesn't work" ?

> I use this command

> tar -c -L 50000 -f archive /path

> but tar stores all in one file an doesn�t create multiple volumes with
> this size. The Parameter -M don�t accept tar.

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.)

-- 
John Wingate                        Mathematics is the art which teaches
johnww@worldpath.net                one how not to make calculations.
                                                         --Oscar Chisini
 

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