DOS 5.0 with the jrIDE.

General discussions on the PCjr

Re: DOS 5.0 with the jrIDE.

Postby Chuckphd53 » Mon Jan 20, 2020 12:46 pm

Ok I'll hunt around some more...
(PCJR/JR-IDE-512DOM,TandyMod,V20-10Chip,BiDir,LPT2,3FlopBrd,
USBEmulator,ZIP100,PS2Keybrd,MouseSysMouse,InternalSwitcherPS)
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Re: DOS 5.0 with the jrIDE.

Postby ZiggyTheHamster » Wed Mar 25, 2020 11:19 am

FYI: If you patch the boot sector in VirtualBox, the boot sector will no longer boot in VirtualBox.

Also, I found that I couldn't FDISK or FORMAT from DOS 5 in VirtualBox and have the disk be read on the jr. I had to run FDISK and FORMAT on the jr. Then the VirtualBox DOS 5 (running from a boot disk, because again you can't boot off of it anymore once patched) could read the disk as well as the jr.
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Re: DOS 5.0 with the jrIDE.

Postby Brutman » Wed Mar 25, 2020 11:28 am

ZiggyTheHamster wrote:FYI: If you patch the boot sector in VirtualBox, the boot sector will no longer boot in VirtualBox.

Also, I found that I couldn't FDISK or FORMAT from DOS 5 in VirtualBox and have the disk be read on the jr. I had to run FDISK and FORMAT on the jr. Then the VirtualBox DOS 5 (running from a boot disk, because again you can't boot off of it anymore once patched) could read the disk as well as the jr.


That's kind of expected ... it's a PCjr specific patch.

Make sure that your patched diskettes are clearly marked. They won't boot on real machines either, except for the PCjr.
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