Which version of the MyIDE would "find" a real compatible OS in rom/eprom (if present) and use that OS rather than installing a ram OS? Was it one of the 3.5's? Maybe I'm dreaming, but I seem to remember that one version of the cartridge MyIDE did that -- looking for an external OS in Rom.

-Larry

Only the internal MyIDE's have a modified OS on EEPROM.

All cartridges load a RAM based OS into the atari.

Hi Sijmen-

Thanks, I must have been confusing this with something else. Too bad, although the ram OS's work quite well.

-Larry

Hi Sijmen-

Hmmm... Now I'm confused.

In this thread: viewtopic.php?f=7&t=1031
you say the following:

>You have 4.3E as internal BIOS and run a maxflash cartridge.
Oh, ok, I forget.

The 4.3E has higher priority over the 3.5F in the external cartridge.
But that is no issue, since 4.3E and 3.5F are compatible except for 1 thing.
3.5F supports 8 partitions defined by FDISK, were as 4.3E only supports the first 3 (!) entries in FDISK.

(snip...)

Later,
Sijmen. <

When I by chance read that thread, I pulled out a 4.3e eprom and booted my 3.5F cartridge. It boots correctly and says "4.3e" on the boot screen. So is this as I thought -- the MyIDE cart uses the actual eprom or is the boot screen in error and it is actually a RAM OS? Please "unconfuse" me.

Thanks,
Larry

When you have 4.3E installed as BIOS, this is the real OS in ROM
the cartridgeloader will see the better OS and not install 3.5F into RAM-area.
So in that case, you have a real OS in ROM.
(128k cartridge-memory wasted or to be used differently)

OS in RAM: loaded from cartridge (3.5F) or from floppydisk (last versions were a longggg time ago: 3.1 I / 3.1 E)
(with the introduction of the 128k flashmemory and my new bootloader, the boot from disk option is virtual obsolete.)
OS in ROM: all internal MyIDE /w flashrom
OS in ROM: 16k EPROM with 4.3E to drive a myide-cartridge (flashmemory is bypassed)
OS in ROM: 16k EPROM with 4.3I to drive a internal 'home-brew' myide-interface

Hope this clears a bit.....

Later,
Sijmen.