On Thu 03 Oct 2019 at 10:17:47 -0700, John Nemeth wrote:
> On Oct 3, 2:42pm, Rhialto wrote:
> } I was thinking the other day that it might be useful if gpt had a
> } subcommand to spit out a script to duplicate the partitioning of a disk,
> } but without the "unique" parts. The script would of course be
> } hand-editable for any changes one might want to make.
>
> By "unique" parts, do you mean just the UUIDs, or do you mean
> other parts as well? What would the output look like?
Just the UUIDs, those are the things I'm aware of.
The sort of script I was thinking of would be something like this:
gpt destroy sd1
gpt create sd1
gpt add -a 2m -l efi -s 128m -t efi sd1
gpt add -a 2m -l root -s 768m -t ffs sd1
gpt add -a 2m -l var -s 3g -t ffs sd1
gpt add -a 2m -l swap -s 8200m -t swap sd1
gpt add -a 2m -l usr -s 20g -t ffs sd1
gpt add -a 2m -l tmp -s 1024m -t ffs sd1
gpt add -a 2m -l home -s 128g -t ffs sd1
It would leave out all/most things that are defaulted.
(probably when automatically generated it would use the -a alignment
only on the first partition, or if there is unused space between them)
(maybe it would even use some shell variables for things like the disk
device)
> The bit about not modifying it is more of a caution. You can
> modify it if you're careful (checksums are recomputed during
> restore). Obviously if you make an error, it may not be usable
> for restore, so you should work with a copy.
Yes, when I wanted to clone the partitioning of my disk, I was indeed
thinking of modifying the output from 'gpt backup', but it seemed a bit
easier to create a little script such as the above, in case I want to
make the same partitions again later. (In fact the version that I really
used had some "are you sure" type prompts in it)
-Olaf.
--
Olaf 'Rhialto' Seibert -- rhialto at falu dot nl
___ Anyone who is capable of getting themselves made President should on
\X/ no account be allowed to do the job. --Douglas Adams, "THGTTG"
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