linux.gentoo.user

Crayon Shin Chan wrote:

> On Sunday 02 March 2008, davecode@nospammail.net wrote:
>> "What supports what" is a good reason for non-filesystem backups. For
>> example partimage has trouble with XFS (still...after all these
>> years...). A program like dd doesn't care the fs. Call it a device
>> backup if you like. This is your basic choice in backup - device or
>> fs. Me personally, dd_rescue - far better than raw dd.
>
> The advantage of something like partimage, which knows about the
> filesystem being backed up, is that it can back up only the used portions
> of the fs.

Yes, it can. But you achieve the same (only used stuff is backed up)
with a simpler tool like "tar" as well.

> So eg if you're backing up a 20GB partition of which only 1GB
> is in use, then using partimage it will be very quick and the resulting
> image very small.

Then the tar file will also be just 1GB.

I really don't see the benefit in using things like partimage or
Ghost.

Michael

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