On 11/27/2016 12:11 AM, Denys Vlasenko wrote:
> I looked at these "type codes of GPT partitions" and they seem to be
> a figment of imagination of "GPT fdisk" people: they are not stored
on disk,
> fdisk authors just assigned them to some GUIDs.
>
> How do you find them useful?
I use gptfdisk tools for disk imaging and information scripts. The
made-up partition types from gptfdisk are an extremely handy mnemonic
device because I can actually remember them and they make for cleaner
code that has to embed these known GUIDs. Off the top of my head, I know
that 0700 is "Microsoft basic data", af00 is "Apple HFS+", ef00 is "EFI
system", and IIRC af01 is "Apple Core Storage." If you asked me to tell
you the corresponding GUIDs, I have no clue at all. The usefulness is
like programming in assembly instead of banging in raw hex codes.
On a somewhat related note, I have started working on implementing the
'-t' switch in fdisk; having BB fdisk automatically pick my GPT
partition table makes me unable to use fdisk to modify the protective MBR.
-Jody
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