tshadwick at goinet.com
Tue Jun 14 13:45:48 GMT 2005
On Mon, 13 Jun 2005, Alex Zbyslaw wrote:
> Philip Hallstrom wrote:
>>>> I have a system that we are running in production that there was an
>>>> oversight on, and it has a single hard drive installed (32GB SCSI I
>>>> believe), rather than a 3 drive raid5 array. We would like to correct
>>>> this, but we have all sorts of up-to-date packages and config files that
>>>> we've tweaked that we would hate to just start over on it.
>>>> There's a tool for OSX called "Carbon Copy Cloner" that would take care
>>>> of this for me, which is basically a series of copy commands that takes
>>>> the filesystem from one drive to another, preserving EVERYTHING
>>>> important, and then bless the boot volume.
>>> If you want two more identical drives then use dump, not tar, but you'd
>>> have to have them sliced/partitioned up the same beforehand and it
>>> wouldn't do bootblocks.
>> You would? Why? restore doesn't care where you're restoring to... you'd
>> just need to make sure you were in / before restoring and then tweak
>> /etc/fstab to suit...
> I understood the question to be how to create two identical *disks* not two
> identical directory trees. So unless the disks were partitioned and sliced
> the same before you used dump/restore then you wouldn't end up with identical
> disks. If all you want is two identical directory trees, then slicing and
> partitioning are irrelevant.
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Partitioning IS releveant in my situation, but they don't have to be
perfectly the same. We have a rather unique system setup on that box to
where /var is insanely huge compared to the average boxen. There are a
few other requirements, but being perfectly identical isn't one of them.
It needs to be running the same directory tree upon boot, and be basically
the same system.
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