OS2 on IBM T42 found a drive greater than 8GB and block install \ VOGONS

OS2 on IBM T42 found a drive greater than 8GB and block install

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First post, by matti157

Posted on 2025-03-24, 21:34

matti157 Offline

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Trying to install OS2 4.52 using that image from Winworld

1IBM OS2 Warp 4.52 (14.089_W4) (CP 2 Refresh) (2002-04) (ISO)

OS/2 is officially supported on T42

I have a 128gb ssd on it, it runs well Win98 and XP

Now I deleted all partitions on the disk, but the setup gave me this error.

1SYS732: IBMInt13.i13 found a drive greater than 8GB
2OS2 is unable to operate your hard disk or d diskette drive
3That system is stopped. Correct the preceding error and restart the system.

So I bypass the error by avoiding booting from CD and booting from these floppy disks https://archive.org/details/OS2Warp4.52UtilityDiskettes

Loaded the third floppy just insert the CD and give the command “CDBOOT” in the terminal that opened. Doing so starts the installer and the partition manager detects my 128GB SSD
I did the first part of the setup, creating and formatting a 1024mb partition in HPFS. At one point the setup asks me to remove the floppy and reboot
It boots from C: with the version of OS/2 on the CD, which is older than the floppies, so I get the same error as the 8GB

any help?

Reply 1 of 5, by Grzyb

Posted on 2025-03-24, 21:49

Grzyb Online

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1. Download this - https://www.os2site.com/sw/drivers/harddisk/idedasd.exe
2. Unpack it - you can use "unzip" for any OS
3. Read the README.TXT

Kiełbasa smakuje najlepiej, gdy przysmażysz ją laserem!

Reply 2 of 5, by fosterwj03

Posted on 2025-03-24, 22:16

fosterwj03 Offline

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Adding to the above comment, you'll need to replace two files on the second boot disk ("Disk 1"): IBM1S506.ADD and OS2DASD.DMD specifically. That will allow OS/2 to access and partition "large" disk drives.

OS2DASD.DMD comes in two versions in the update package, a 16-bit version and a 32-bit version. You'll want to rename "DASD32.DMD" to "OS2DASD.DMD" and then replace the file on the floppy.

Reply 3 of 5, by fosterwj03

Posted on 2025-03-24, 23:41

fosterwj03 Offline

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Oh, you might also need to add a line to the CONFIG.SYS file in the second boot disk ("Disk 1") to copy the new files over to the hard drive during installation.

Add the following to the end of CONFIG.SYS:

SET COPYFROMFLOPPY=1

Reply 4 of 5, by matti157

Posted on 2025-03-26, 16:05

matti157 Offline

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I am now reading your responses, but in the meantime I tried simply removing the notebook from the docking station.

Everything works great, I don't even need floppies, I boot and install from CD 😅

Reply 5 of 5, by fosterwj03

Posted on 2025-03-29, 00:59

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I wonder if your docking station had an issue with Bus Mastering. That could keep the IDE driver from working properly. I've had to disable Bus Mastering (ironically on an IBM system) to get the driver to work.

You may have to add "/! BM" to the "BASEDEV=IBM1S506.ADD" line in your CONFIG.SYS.

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