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Hello. I’ve been gone from OSR since the early mail and email days of NT Insider. It is my hope that this post is “in keeping with the overall spirit and purpose of the Community” albiet not driver authoring related.
My quest: To restore the NT4 (SP6) box that I used to develop an NT driver in the late 90s. It’s been a real stickler but I think I’m getting there.
I'm hoping someone can help me determine which drivers to enable for IDE HD support in NT4 (SP6). I have a SuperMicro P5STE motherboard with an early Pentium CPU. The chipset is an Intel SB82371SB which includes the IDE interface. The system has the original SCSI HBA and HD which are working but the HD is on it's very last legs, so I am trying to clone it to an IDE HD. Since I never used the IDE ports on this system the drivers for IDE are not enabled, so a clone to IDE starts to boot then fails halfway through with "INACCESSIBLE_BOOT_DEVICE". I'm guessing this is when Windows wants to start using its driver vs the BIOS that started the boot.
I see that ATDISK.SYS is described online as "ISA/EISA non-SCSI (WD1003 compatible controller)". I am not sure my chipset is compatible and looking at its datasheet isn't helping me determine that. Since hardware of the day at this level usually had a popular standard, I'm guessing it's compatible. OOPS: I just discovered the WD1003 adapters were for MFM / RLL. On the other hand I have found "The ATA IDE interface was modeled after the WD1003 controller IBM used in the original AT system" so perhaps this is still the driver to use for IDE.
I also see ATAPI.SYS is described as "CD-ROM driver with non-SCSI interface". I'll guess that I need this if I want to put a CD drive on the IDE cable.
Do those descriptions sound accurate? Are there any other necessary drivers I might be forgetting? SCSIPORT.SYS is already enabled.
I definitely do not want to "brick" my SCSI HD boot by making a bad change in driver management. Is there a way to protect myself? There's no "Last known good boot" option for NT4. I can boot from floppy and access the FAT C: drive, but I’ve forgotten which registry file I need to back up. Hopefully it fits on a floppy.
All feedback appreciated!
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