[SATLUG] Live backup / hot imaging software for Linux?

Peter Cross pjcrux at gmail.com
Thu Feb 3 17:01:35 CST 2011


I may be way off base here but what was the format structure of the drives
where it didn't work and what was the format structure of what worked?

On Thu, Feb 3, 2011 at 4:53 PM, David Salisbury <
david.salisbury at momentumweb.com> wrote:

> > That can be a bit tricky since other processes may be updating the
> partition as
> > you are copying.  You really don't want to copy the partition superblock
> and related
> > data.
>
> But, if I'm wanting a full image of the drive (so as to just plug the
> backup in and go in case of drive failure) don't I need the partition
> superblock and structure data as well?  I know that the partition content
> can change during the copy, and with the data/processes on this drive/system
> that's OK.  I guess I'd just like to be able to make a full, fully-bootable
> copy of a drive without having to shut down the machine that it's running
> on, if I can.
>
> Oh, and I'd tried the copy command before with "cp /dev/hda /dev/hdb", but
> sometimes the result in /dev/hdb would work and would boot and sometimes it
> wouldn't, even after booting with a rescue disc and repairing anything
> bootloader-related.  I was just curious if there's something that will do
> this type of backup on a more "consistent" basis.
> David
>
>
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-- 
Cheers!

Peter J. Cross
San Antonio, TX

"Experience has taught mankind the necessity of auxiliary precautions"
-James Madison, Federalist Paper No. 51

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