ok I'm at your disposal, bye

I’ll put this attempt on hold—perhaps if I find a different partitioning program for AROS, I’ll try again. Thanks for your time.

Open hdtoolbox, choose the device, it has to be MBR first of all, then create an RDB partition, it doesn't matter how big it is, then create a new partition and resize it. SFS doesn't support more than 120 GB, it has to be of type BE. Then just select to mount it at startup, not to boot from it—all this is regarding a new HD.

Hi,

What does View -> Device Information say?

A 500 GB disk, with 45 GB for the System and 124 GB for "Work"—is the rest unformatted, i.e., RAW?

You need to be careful: AROS will only use partitions as its disks if they are RAW; if they are initialized or formatted, it will take up the entire disk.
With HDToolbox, you can actually create as many partitions as you want, but it's not easy—check out this old video of mine from 15 years ago.

If I create an additional partition using GParted, will it be visible in AROS?

Hi,

Have a look here https://en.wikibo...sdos_disks but it does start with wiping the drive and adding partitions is half way down. The details are old so like Deadwood says test on something you do not mind wiping.

I have two drives; one has ArosGames installed, and the other also has ArosGames (I couldn't get ArosOne64 to boot from the disc, as I mentioned in another thread). I’d like to experiment a bit with this second one—is there a guide somewhere on how to use it? So far, I haven't been able to do anything other than see the names of the drives.

You can use SYS:Tools/HDToolBox but it's not easy to use for beginner. My suggestion is to first experiement with using it under a scratch system installation under a VM before you start using it on real hardware as it is easy to damage your disk if you have no experience with using it.

Hello,
By default, there are two partitions: a system partition and a work partition. I have some free space on the disk and would like to add a third partition, which should also be visible on the AROS desktop.
Best regards,