I recently got an NTSC Amiga 1000 with 2mb RAM (as reported by Workbench) and being a little crazy decided to run the latest AROS build on it (AROS-20241103-amiga-m68k-boot-floppy).
This actually works in the sense that I can get to a shell, but it's not exactly ideal:

1. There's no mouse cursor, which makes it really hard to dismiss the live-CD dialog
2. The image on the screen tears to pieces in an almost loss-of-vsync type way if I don't drag the the Workbook screen height to slightly less that the default (or one of several other working exact heights)
3. The system crashes or reboots if I double-click any disk icon from the main screen.
4. Despite being called "AROS Kickstart" the boot floppy cannot take the place of my AmigaDOS 1.3 kickstart and must be loaded after it.
5. The bootup process reads the floppy disk super slowly and takes about 10 minutes to boot.

All this has me curious: Has anyone compiled an AROS boot floppy more tailor-made for old Amigas, for instance one that:
1. Sets a fully-working screen mode with mouse cursor
2. Can "kick the AROS rom" as an actual kickstart disk
3. Doesn't have any "click here to crash" icons.

AROS currently reports:
Workbook 1.0 Chip: 318k, Fast: 305k, Any: 624k

With an A1000 I believe it is impossible to start AROS 68k, if it had been an Amiga 1200, AROS would have started even using KickStart 3.1, the AROS Rom would have been mapped by the startup-sequence

Well, in that case here's a picture of me doing the impossible. ;-) This Amiga 1000 has been upgraded with 2mb fastRAM in a sidecar expansion and an external clock module. I presume but have not physically verified that the CPU and chipset have not been upgraded. I was able to boot the 2924-11-03 nightly of AROS 68k and run a shell on it by:
1. Starting the machine with an Amiga Kickstart 1.3 disk
2. Inserting the AROS "Kickstart" floppy in place of the Workbench disk
3. Waiting about ten minutes for the operating system to load from disk
4. Dragging the Workbook 1.0 screen down slightly until it hit a pixel height that would not cause endless vertical scroll
5. Finding the cancel button on the live-CD dialog without being about to see the mouse
6. Launching a shell from the main menu system

[img][/img]

So it appears that at long as it's minimum memory is met, AROS 68k will boot even on a first-generation Amiga. It just isn't optimized for that and doesn't display a mouse cursor.

Congratulations, it really seems that AROS can do the impossible, such a 'modern' system that can run on an A1000, I would never have believed it!

AROS may start on an A1000 but Workbook is incomplete. It may have some serious errors and limitations. The Apollo Team was going to try to fix Workbook but I'm not sure if they made it work correctly.

Congratulations on getting it to start on an Amiga though. :-)

I tried today Apollo OS 9.4 and it seems slick. But it seems it needs too much ram to be usable on your system.