Re: [SLE] Backups

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To: suse-linux-e@suse.com
Date: Sun, 11 Jul 2004 17:30:00 -0400

On Sat, 10 Jul 2004 19:43:00 -0800, you wrote:

>On Sat, 10 Jul 2004 3:08 AM, Mike Cocke wrote:
>
>-Unless it's recently been changed. Mondo has a maximum of 50 media
>-unless you build it with some optional switches.
>
>-And you omitted DAR - the Disk ARchiver. http://dar.linux.free.fr/
>-(I suggest looking at DARomizer with DAR - it allows building the
>-archive and burning to cd/dvd in parallel. Disclaimer: I wrote
>-DARromizer)
>
>-Mike-
>
>Mike:
>
> I don't remember DAR coming through before, but maybe I just missed
>it. I have added it to my list along with the web address you provided for
>it. By the way, since you were the author (or a co-author) of DAR, what I'm
>for from a backup is software that would make the following scenario
>possible.

I am in no way author or co-author of DAR. I wrote an add-on named
DARomizer. I wouldn't mind being able to claim some of the credit -
it's a nice piece of work - but cannot.

>1) I run the software to back up my Linux partition(s)
>2) I upgrade my system (say from 8.1 to 8.2, my situation)
>3) I discover that my system is completely hosed as a result of the upgrade
>4) I run the software to recover my Linux parttions(s)
>5) I start up linux and I'm back to my old 8.1 system with everything just
>like it was before I started at step 1)
>
> Is this a reasonable scenario with DAR?

Within limits, and depending on what you used for media, etc. For
example, I had to do a bare metal restore from a DAR archive - here's
the procedure I used.

1) Install the desired version of linux from CD or DVD (you don't need
to install all the packages, or worry overmuch about settings, because
you'll be restoring in a few minutes, but letting the install program
work out detected hardware and drivers is simpler than doing it
yourself.
2) Restore the DAR archive.

Technically, I could have skipped step 1, using the recovery utilities
from the distro disks, but in the event of a hardware fault (which was
my problem), my procedure was actually faster and simpler.

Hardware failure and recovery of an image onto different hardware is
something every single image program that I looked at had problems
with, ranging from the iffy to the complete failure. I'd recommend
you make that a major point to test in your search.

Ghost, Mondo, and Drive Image all had issues with that scenario. It
really comes down to the hardware detection, driver updating, and
plug&play support of ther OS itself. I wouldn't bet on any of the
above under linux or windows at this point - especially if you're
looking at potentially restoring to a different drive config
(partition layout, geometry, etc.) than you had when you backed up.

Mike-

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• Previous message: BandiPat: "Re: [SLE] Kopete and Yahoo"
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