Re: [BackupPC-users] Bare metal restore
2010-05-10 09:04:24
On Mon, 10 May 2010 14:02:53 +0200, "Boniforti Flavio"
<flavio AT piramide DOT ch> wrote:
> Hello list...
>
> I was wondering if I may be doing some sort of "bare metal restore" of a
> Linux server, if I'd be backing it up *completely* on my backuppc
> server.
Theoretically, a "bare-metal" restore should be possible by backing up the
entire filesystem. The restore procedure to a new piece of bare-metal would
be:
1. Boot from rescue media
2. Partition the new disk and mkfs it
3. Restore the server image to the new disk (either by networked rsync
or untar'ing a tarball downloaded from the backuppc restore interface)
4. chroot into the restored disk and install grub (bootloader)
5. exit chroot, unmount new disk and reboot the system
In practice though, I've found it takes lots of tries to perfect the above
procedure and it's often easier to re-install the base OS and just restore
critical config files, application files and data to the box. Bare-metal
restores *sound* sexy, but really they're often just not useful.
-Josh
--
--------------------------------------------------------
Joshua Malone Systems Administrator
(jmalone AT nrao DOT edu) NRAO Charlottesville
434-296-0263 www.cv.nrao.edu
434-249-5699 (mobile)
BOFH excuse #360:
Your parity check is overdrawn and you're out of cache.
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