Re:filesystem backup (was: Resizing an LVM

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Title: Re:filesystem backup (was: Resizing an LVM
At 7:55 PM -0300 6/3/07, Sebastian Gurovich wrote:
What is the best way to backup a file system like that with DVDs?
Later will ask the list.

There are many backup solutions.  Some take lots of setup.  Myself, I've used tar and dump.  Be aware that compression makes the backup "brittle", so that a single error can ruin it.  Tar and dump have options to set the tape length; I use "4590200".  I do backups with two windows.  In the first:

    tar -clf /tmp/dvd -ML 4590200 /boot /etc /root /home /var/www

or:

    dump -0u -L my15charlabel -b 32 -B 4590200 -f /tmp/dvd /mnt/filesystem

in the second, when the first pauses:

    growisofs -dvd-compat -Z /dev/dvd=/tmp/dvd

There may be slicker ways to do it.  Note that for dump I like to boot from CD and work on an unmounted filesystem.  For tar I do a selective backup.

Others like to use a USB disk drive, and just copy the files over, often with rsync if they do it repeatedly.
--
____________________________________________________________________
TonyN.:'                       <mailto:tonynelson@xxxxxxxxxxxxxxxxx>
      '                              <http://www.georgeanelson.com/>

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