Re: An experiment in backup
On 01/16/2015 01:28 AM, Joel Roth wrote:
> On Thu, Jan 15, 2015 at 09:32:24PM -0800, Kevin O'Gorman wrote:
>> I care because I like to have a lot of free space in my partitions, but I
>> hate to use backup time and space on the holes.
>
> Hi Kevin,
>
> If you copy the whole partition, byte-for-byte, as with the
> 'dd' command, you copy everything, including the free space.
>
> If you copy via the filesystem, e.g. using rsync, you just
> pay for what you use, and all the files are immediately
> available. Restoring a file is a matter of
> copying.
>
> ...
>
> #!/bin/sh
> RSYNC="rsync -avx "
> CMD="$RSYNC \
> --exclude /dev \
> --exclude /proc \
> --exclude /sys \
> --exclude /home \
> --exclude /tmp \
> --exclude /var/cache/apt/archives \
> --exclude /var/run \
> / /mnt/$1/root"
> echo $CMD >> /var/log/backup.log
>
I can confirm that the above works. I recently used rsync to copy my
live system to another partition, excluding /dev /proc /sys /tmp and /home.
After setting grub to boot the new partition, it works fine. I'm using
it now.
-Thom
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