Re: [SLE] Backups
From: Michael W Cocke (cocke_at_catherders.com)
To: email@example.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
> 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
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
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.
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