Re: [hatari-devel] Partition/GEMDOS drive ID assignment question

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 29.8.2025 18.15, Uwe Seimet wrote:
> > You need to specify GEMDOS HD drive letters that do not overlap with
> > partitions on your configured drive images.
>
> I see. I guess I missed this before because it is so obvious.
>   
> > Coupling that with images is much more niche, one where user is expected
> > to know what drives GEMDOS HD partitions should use...
>
> Niche? Isn't this the standard way for many users to copy data from an
> image to a filesystem and vice versa?

If data copy is from image to GEMDOS HD, directory is often empty.

When done in another direction, GEMDOS HD directory normally has other 
things in it than single-letter subdirs, e.g. DESKTOP.INF file, some 
program, or standard Atari folders like AUTO/ etc..


> I have to admit that I still don't know a use case where the "Add GEMDOS
> HD after ACSI/SCSI/IDE partitions" option can be used and actually makes a
> difference. Can you point out a simple use case, let's say for an emulated
> TT with TOS 3.06, a SCSI drive with 2 partitions and a mapped GEMDOS folder
> with two subfolders? Thank you!

It's used when user does not specify GEMDOS HD drive IDs.

I.e. when user does not give "--gemdos-drive <ID>" option, and where the 
given GEMDOS HD directory has (also) some other content than drive ID 
subdirs, or is empty.


	- Eero