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Hi Pere, Seems I was worrying unduly, your FLO2V detects the size of the source disk being copied so I don't have to into OS9 to figure out what format they are (although I did find an old working boot disk & did just that) - done a couple of 40T/SS and it seems work flawlessly. However... There see...

That was (kind of) my original intention to use your FLO2V app to copy a couple of OS9 5.25" disks across as VDKs. The trouble is I'm not sure whether they are 180K or 360K disks and I'm assuming that I need to tell your app somehow which size to create. Hence my plan to boot into OS9 and check them...

Yes, you're right there, now I've read back through the thread I see you got it working fine on the real kit. Maybe they've done something special for the Becker port which relies on HDB-DOS then? I've now successfully booted up NitrosOS9 on my D64, with floppy drives attached using the images Ken p...

It's been a *long* time since I delved into the inner workings of OS9 but in the original D64 incarnation, the DOS "BOOT" command would read in sectors 3-18 from the disk, then jump to the start of data block to begin execution. That initial bootstrap block (I believe) contained part of the kernel a...

Hi all, Can someone point me in the direction of how to boot up Nirtos-OS9 on a Dragon 64 (real but emulator instructions would be useful as well) with Drivewire support. I've got working HDB-DOS images plus DWLOAD support in ROM so the hardware is in place. After searching through various posts on ...

Sounds like you've done pretty much everthing I did then. I seem to recall DOSPlus had a "write track" call in the indirect jump table that I had to patch for my RAM disk variant (in order to get the initial directory written as part of DISKINIT). Don't remember anything about spurious sector number...

Similar thoughts had crossed my mind and I have done something similar a couple of times in the past. When I built my RAM disk project, I prototyped a system whereby I did the classic D64 copy-everything-to-RAM then patched DOSPlus to redirect the (unused) drive 4 to the RAM disk - see the code at t...

marvellous stuff, I will grab the latest and see what else I can break...

Thanks Ken, I will have a punt at that later.

Hi, I am having a bit of trouble with the cf_dragon.img.7z image posted here last year (year before?). I am assuming the unpacked image (cf_dragon.img) loads straight into drivewire however I can't get a valid directory for any of the virtual disk images held within it (tried the 100-130 range which...