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Old 09-13-2016, 12:07 AM   #16
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Originally Posted by H.Brice View Post

I've always done backups of my data and reinstalls of my operation system all my life. I never done cloning before, but during my research I read how some people had issues after restoring a clone image like not booting for instance. I'm not sure if this is the cause of user error or the cloning process is not as intuitive as it seems. What prerequisites should I know beforehand to guarantee a clone image can be restored without any issues? Thanks
You can try using Clonzilla. You will of course need a second hard drive either internal or external and large enough to hold the filesystem image clonzilla creates.
Old 09-13-2016, 03:07 PM   #17
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I like to use Gparted to copy a partition.

Any backup is better than none.

Sadly most folks test a backup under pressure.
Old 09-13-2016, 04:01 PM   #18
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One thing I like about using rsync to incrementally update is that it gives a positive indication that all the files I think are backed up really do exist on the destination. It also gives some insight into which file change from update to update. There's a chance that if I do some sort of "oops" mistake, like accidentally deleting or moving a directory, I'll notice it when rsync runs.

That said, for my main server I like having a completely live backup system, not just a copy on a hard drive. That means an entire second system, with eth0/eth1 configured (two MAC addresses each, so the drop-in replacement functions with identical iptables etc). Same IP address, so the backup system is connected to a "branch" of my network behind another computer acting as a simple router.

That way, if my main server has a failure, I can drop in my replacement system and be back up and running in a couple minutes; I can then figure out what to do with my main server without time pressure.

This is not an "enterprise class" solution. It's just good enough for my personal home network. I still have to physically swap ethernet cables around to drop in the replacement. But I'm okay with a couple minutes down time (or more if I don't notice the failure, obviously).


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