I replaced the kickstart in Amithlon with a stock A500/A2000 3.1 kickstart. The system booted just fine and runs with no issues that I’ve noticed so far. It looks like only exec is different between the two. I’m going to experiment with how much the shape.rom can be patched without creating any issues.
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Some more experimenting with the kickstart in Amithlon. I started with the Amithlon Rom (loaded all it’s modules in to remus) then replaced the ones with versions from the BoingBag2 extracted modules . I then replaced the math libs with hsmathlibs and layers.library with version 45.27.
I removed workbench.library, battclock.resource and scsi.device for room. Amithlon booted just fine and I haven’t noticed any issues currently. I’ll continue to monitor.
Changed my setpatch line to
SetPatch NOROMUPDATE NONSD >NIL:
in startup and commented out my LoadModule line.
battclock.resource is injected by Amithlon so not needed. scsi.device is not needed because Amithlon uses amithlon.device. workbench.library I use an updated version in libs.
Replaced modules:
exec_45.20 (A1200-A500)
bootmenu_447(A500)
console.device_44.8
filesystem.resource_45.10
filesystem_45.13
ram-handler_44.24_NoBss
shell_45.7
mathffp.library (HSML)
mathieeesingbas.library (HSML)
layer.library 45.27
Removed modules:
battclock.resource_39.3
scsi.device_40.5(A600-A1200)
workbench.library_40.5
Any suggestions of what else to replace/upgrade. We are limited to 512KB ROM image so keep that in mind.
More experimenting… a few different modules.
Replaced modules:
exec_45.25.17 (Cosmos)
bootmenu_447(020)
console.device_44.8
filesystem.resource_45.10
filesystem_45.13
ram-handler_44.24_NoBss
shell_45.7
mathffp.library (HSML)
mathieeesingbas.library (HSML)
layer.library 45.27
dos.library from BB3&4
Still boots fine. I’m pretty confident you can modify it like any other OCS/ECS Amiga kickstart. I’ll probably stay on the “safe” side and just replace the BB2 modules, the HSML math libraries and layers.library. Setpatch won’t require a restart and I will no longer need LoadModule.