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Iain Buchanan writes: |
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> On Thu, 2010-04-29 at 16:44 +0200, Alex Schuster wrote: |
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> |
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> [snip] |
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> |
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> > All my partitions are LVM volumes, so before the backup starts, I |
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> > make a LVM snapshot of the partition. This way I can modify it while |
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> > the backup is still in progress. |
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> |
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> hmm, never got into LVM. Sounds interesting though... |
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It is. it gives you great flexibility. Your /home is becoming too small? |
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So just add a Gigabyte: |
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lvresize -L +1G /dev/system/home |
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resize2fs /dev/system/home |
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Takes half a minute, and you don't need to unmount anything before that. |
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You want to backup your large /home partition, and want to continue |
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working meanwhile? Create a snapshot, mount it, and backup this: |
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lvcreate -s -L 1G -n home-snapshot /dev/system/home |
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mount /dev/system/home-snapshot /mnt |
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> [snip] |
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> |
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> > I wrote a shell script to do this, so I do not have to issue a lot of |
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> > commands every time I want to do the backup. |
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> |
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> I don't use too many commands, something like this |
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> in /etc/cron.daily/custom-backup: |
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> |
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> sudo /usr/bin/ionice -c 3 /usr/bin/rsync -aAx --exclude suspend_file |
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> --delete-delay --delete-excluded --partial |
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> --human-readable / /<unique-mount-of-external-drive> || echo external |
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> backup failed! |
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That's okay, I did it in this way, too. Well, the backup may be |
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inconsistent when you are modifying the root partition in the meantime, so |
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I would not emerge things when the backup is running. |
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But now I am using LVM for everything, and so I just create a snapshot. |
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And I prefer to use rdiff-backup, so I can have incremental backups. |
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> > As there are now some others |
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> > using this script, adapted to their needs, I started to rewrite it in |
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> > a way that it reads a config file, and no modification of the script |
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> > itself is necessary. If anyone is interested, send me an email. |
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> |
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> interested! So is it on sourceforge yet ;) |
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Um, no... not yet. Not really sure if it belongs there... |
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The script has become a little large, but I think it's working now. I will |
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do some testing, and inform you when it's done. I'm a little ill at the |
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moment, so it may take 1-2 more days. |
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Wonko |
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