Thanks for the feedback! I really appreciate it! 😄
Well, it's a start, at least. So we have the boot code for DOS 1.x, at least.
So a pro in ASM or machine language programming might be able to adapt it for loading DOS 2.x/3.x system files.
Or maybe it's even possible to convince the SYS command of DOS 2.x to run on DOS 1.25 ?
I got this method working on DOS 7 in conjunction with DOS 6.22 SYS.COM, at least.
It involved changing DOS version number and a temporary drive letter (another partition, floppy drive, RAM disk).
Edit: Once we are this far, maybe an emulated Sirius/Victor could be used to transfer the data over to the real one via serial.
Or maybe someone is able to write a host program (Windows/Linux/Mac etc) which provides data to the real PC.
The makers of the XT-IDE Universal BIOS, for example, made such an untility: XUB can boot via serial port, too.
If I had a Sirius/Victor machine, I would gladly send you a physical copy of a boot disk.
Unfortunately, I have no access to such a machine. If I see one, though, I'll ask its seller/owner for a copy.
That being said, maybe PCem/86Box will someday add Victor emulation.
At this point, the community might be able to help or source physical copies of these boot disks.
Until then, the Sirius 1/Vic 900 remains an oddity very little people ever heard of.
Which is a shame, since that machine is a pioneer in its own reign, similar to the IMSAI 8080 used to be in the Z80s days.
"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel
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