Ok, i managed to fix the crashbug by doing a fresh install of DosBox, but I still cannot fdisk the drive, as DosBox doesn't seem to support "rebooting" and crashes or freezes when MSD6.22 or FreeDos try to restart.

I was told once on this board that for some reason the MS-DOS install doesn't work properly under DOSBox. Try instead to install from QEMU and then use the resulting diskfile with DOSBox.

Neville wrote:

I was told once on this board that for some reason the MS-DOS install doesn't work properly under DOSBox. Try instead to install from QEMU and then use the resulting diskfile with DOSBox.

Where precisely was that said? Could you go to details? If it is so , it would be nice to fix it.... This is a thing DOSBOX should manage...
I cannot remember whether I tried it or not (it is possible I was booting a floppy image and did not bother with the whole MS DOS installation...).

Edit: And I know for sure that I used FDISK in DOSBOX succesfully (as written in DOSBOX Guides)...

Edit (rebooting):

4. After DOS booted I started FDISK and created a primary DOS partition. When FDISK wanted to reboot later, it crashed/froze (depending on DOS version). I ignored it and ended DOSBOX (it is minor nuisance but FDISK already did its work).

5. I again restarted DOSBOX as in the point 3., but instead of FDISK I used: FORMAT C: /S
This formatted the disc and made it bootable.

Mirek

Yup, fdisk DOES work, but the 6.22 Setup does not. Me and someone else discussed this some time ago in the developers forum I think (I didn't believe him and tested it and found it not working as well - his original problem was the image size AFAIR)

Edit:
Hmm can't find the original thread I was thinking about, but here is one:
Problem installing to HDD image file.

(and I made small mistake by just stating 6.22 doesn't like he image, I meant of course the 6.22 Setup 😀)

After creat partition,you must change that "fs none" to "fs fat",boot with a MsDos floppy image,and then,format c: /s
Worked fine here.
EdusP