[BUG] IBM ESDI Fixed Disk controller not working on PS/2s

[DSN]

I'm trying to install OS/2 1.20 on a PS/2 Model 80, but FDISK says that is no fixed disk are present.

Screenshot:

nodiskpresent.png (3.61 KiB) Viewed 11052 times

This occurs in all PS/2 machines with the IBM ESDI controller. DOS 3.3's FDISK also does not detect the harddrive with this controller.

nodiskpresent_dos3.3.png (1.41 KiB) Viewed 11052 times

[SA1988]

Have you used the reference disk and the right bios?

[DSN]

I don't know, what you are saying?

[te_lanus]

Installed Dos 6.22 on PCem's PS2 model 80, without problem.

I don't know, what you are saying?

You need to use google and get the reference diskette:

Screenshot from 2020-03-18 07-25-57.png (4.2 KiB) Viewed 10983 times

Google is your friend to get them, And use that to setup the machine, and then only install the OS:

2020-03-18 0802.png (20.36 KiB) Viewed 10983 times

My emulated System:
System: IBM PS/2 Model 80 (i386DX/16)
FPU: 387
Memory: 3MB
Built-in video
IBM ESDI Fixed Disk Controller with a 314mb HDD

[win2kgamer]

I was able to install OS/2 1.2 Extended Edition on a PS/2 with the ESDI controller last night (using PCem-dev commit 6bd1c70):

PS2m80_OS2v12.png (19.72 KiB) Viewed 10943 times

Machine configuration:
Machine: [386DX] IBM PS/2 Model 80
CPU: i386DX/33
FPU: None
Video: Built-in
HDD: [ESDI] IBM ESDI Fixed Disk Controller, 112MB HDD
FDD: 3.5" 1.44M
Mouse: 2-button PS/2

[DSN]

I got OS/2 1.20 (Extended Edition) working in late night. I managed to install it by using the reference disk I got from archive.org, I got a PS/2 software collection zip from it.

Machine spec:
IBM PS/2 Model 80 i386DX/25 4mb
Built in video (VGA)
Adlib MCA sound
30mb HDD with IBM ESDI Fixed Disk controller
3.5" 1.44mb & 5.25" 1.2mb FDDs
2-button PS/2 mouse

[DSN]

I got this error in the PS/2 Model 70-486 reference disk:

warning.png (5.1 KiB) Viewed 10135 times

I'm trying to setup a PS/2 Model 70 (type 4), so what is this?

[win2kgamer]

The message is saying that the .ADF (Adapter Description File) for one of the devices in the emulated machine is not on the reference floppy. What is your machine configuration?

[DSN]

My machine spec:

IBM PS/2 Model 70 (type 4) i486DX/33 8Mb without dynamic recompiler
Built-in VGA
S.Blaster Pro MCV
IBM ESDI Fixed Disk Controller
FDD1 - 1.44Mb 3.5"
FDD2 - 1.2Mb 5.25"
Dual 127Mb harddrives
2button PS/2 mouse

[win2kgamer]

Try injecting the three ADF files I have attached into your reference disk:
@DDFF.ADF and CDDFF.ADF are for the ESDI adapter (I get a feeling the 486 models had SCSI and/or IDE as a standard feature and hence the ref disk didn't include the ESDI ADFs)
@5103.ADF is for the SBPro MCV (as this was a third-party card, the IBM reference disks never included these ADFs)

To inject these files, you can use a program such as WinImage since the IBM PS/2 reference disks are pretty much standard bootable DOS disks.