[GTALUG] Back to basics: upgrading from Windows to Linux

[Kevin Cozens]

On 2022-04-28 17:29, D. Hugh Redelmeier via talk wrote:
> | From: Kevin Cozens via talk <talk at gtalug.org>
> | I have just used dd run under Linux when I have cloned drives in the past.
> | YMMV.
> 
> Two problems I can imagine:
> 
> - the two disks will have partitions with identical UUIDs.

I was thinking the purpose of the cloning was to replace one drive with 
another. If you are cloning a drive and keeping them both in the machine it 
will be a problem if you are referencing drives by UUID. You can always 
change the drive ID after the cloning process by referencing it by 
filesystem ID. The fstab file in my machine uses filesystem ID for drive 
references. The only time I use device UUID is in grub2. Back in the days of 
grub1 I had it using the filesystem ID.

> - if the geometry is different you might get a bad result.

If the size/type of drive is radically different that could be a problem. In 
that case the new drive can be partitioned as desired (ie. like the old 
one), then rsync can be to copy the files.

-- 
Cheers!

Kevin.

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