On 11/11/2020 12:06 PM, Hollowone PL wrote:
Hello everybody,
I just joined this newsletter and I hope the community, I had a few
tries with FreeDOS but mostly in the VM and mostly for the use cases
that DOSBOX handles much better.
None of these are related to my current deployment, which was hacking
the UEFI boot manager that comes with Intel Mac on one of my old iMacs
and installing both Windows (7) partition and FreeDOS to boot
natively, no VM, just on the bare metal computer inside the aluminum box.
It works, I can boot into it. I can run lots of software and I rather
installed it to try something new than to emulate SB and play old games.
Interesting, to say the least. Normally people try to run macOS on a
regular PC to turn it into a "Hackintosh"...😂
My research will be mostly development and to test how I can switch
from FreeDOS to long mode (64bit protected mode) but I cannot even use
dev tools provided in packages as they often return DOS16/m exceptions
and hang the computer out.
With this I have few starter question as a user:
- DOS16/m is a 16bit protected mode extender. Does it mean that
FreeDOS runs in 16bit protected mode from the command line or perhaps
some driver is interfering or rather the iMac I use has hardware that
may cause some obvious incompatibilities.
Not sure where you saw that DOS Extender prompt, but no, FreeDOS is not
running in protected mode (it would really be DOS if it would).
DOS Extenders are commonly exclusive to an application that links this
DOS extender into the executable. Not knowing what exactly the
application is that you tried to run, but it is quite conceivable that
your "HackinDOS" Mac isn't quite compatible hardware wise in terms how
you are trying to enter that 64bit protected mode. Best WAG is that a
memory manager that you could have loaded (we have no info about your
actual system startup setup) is interfering with that (as those need to
switch into 16bit (or 32bit) protected mode at least temporarily to do
their thing)...
Ralf
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