Articles

Help with 1987 IBM PS/2 Model 30 with 8086 CPU

January 29, 2013 at 20:16:38
Specs: MS-DOS, 8086/640k

I have a 1987 IBM PS/2 Model 30 with an 8086 CPU. It has one 720k floppy drive, and a 20 MB Hard Drive. The problem is, the hard drive got messed up, so I had to format it, and now I want to reinstall DOS, but when I try to boot from the DOS diskette, it says, "Non-System Disk or disk error". It will only let me boot from the IBM Starter Diskette supplied with the system. How do Install DOS onto this machine, and how do I get it to boot from the 720k DOS Diskette?

-Jon


See More: Help with 1987 IBM PS/2 Model 30 with 8086 CPU

Report •


#1
January 29, 2013 at 20:43:28

Just curious, is the DOS diskette the first disk of the set? (Does it have command.com on it?) Could also be that the disks are bad. Floppies have a notoriously short lifetime if not kept in ideal conditions---and still have problems even when they are.

"Channeling the spirit of jboy..."


Report •

#2
January 29, 2013 at 21:48:52

Since it boots from one disk the drive must be good so either the other disk is bad, not a system disk or is a 1.44 and not a 720 disk.

When governments outlaw guns only outlaw governments will have guns


Report •

#3
January 30, 2013 at 09:51:22

I tried the DOS diskette in another machine and it worked, and booted fine. And yes the diskette is a 720k diskette. It didn't come with the machine though, I got it from a friend.

Report •

Related Solutions

#4
January 30, 2013 at 18:10:13

If memory serves, PS/2 drives had high failure rates. There may be some help somewhere here:

http://www.mcamafia.de/mcapage0/mca...

"Channeling the spirit of jboy..."


Report •

#5
January 30, 2013 at 20:59:58

Yeah, it might be failing or slightly misaligned such that it reads some but not all disks. Or the disk may be flakey and not work in every drive.

Is the drive it worked in a 1.44 or 720?

Was the disk originally a 1.44 and then reformatted to 720? Was it formatted as 720 in a 1.44 drive?

Do you have any other 720 bootable disks you can try or can you make some on another machine?

When governments outlaw guns only outlaw governments will have guns


Report •

#6
January 31, 2013 at 04:22:58

I don't have any other bootable 720k disks I can use. :( If someone can tell me where to get some, that'd be great! :)

Report •

#7
January 31, 2013 at 09:19:20

Try here for boot disk images. You will need a working computer with a floppy drive to create the disks.

http://www.bootdisk.com/


Report •

#8
January 31, 2013 at 20:32:21

To format a 1.44 disk as 720 in a 1.44 drive you first need to cover the 1.44 sensor hole--not the write protect slide switch--with tape so the drive thinks it's a 720. Then use FORMAT A:/F:720 where a: is the drive with the disk to be formatted as 720. (You'll need to use dos or 9X to format as I'm pretty sure XP won't format a disk as 720.) Then you can SYS it on a dos machine or use a 720 image.

When governments outlaw guns only outlaw governments will have guns


Report •

#9
March 5, 2013 at 04:20:33

I got a working boot disk and booted to DOS, but now I have another problem; I ran fdisk and i found out MY HARD DRIVE IS BAD! :( :( :( I'll have to find another one I guess....

Report •

#10
March 5, 2013 at 16:47:20

If fdisk encounters a problem it should give either 'no fixed disk present' or 'error reading fixed disk'. Either one doesn't necessarily mean the drive is bad.

That model 30 probably doesn't have a cmos for bios setup but it should have a configuration disk. That 'starter' disk you have may be it. Boot from it and see if there's an option to setup the hard drive.


Report •

#11
March 12, 2013 at 07:38:17

fdisk gave me an error on track 0 and said the disk was unusable :(

Report •

#12
March 12, 2013 at 21:06:34

Are you sure it's set up right? If it is and still gives that error then the drive may be bad or may need to be low level formatted. I'm sure that's an old MFM drive and an LLF was something those drives occasionally needed. If it was recommended by IBM there would probably be a utility on the starter disk. Or there's an 'advanced diagnotics disk' you can download here:

http://www.walshcomptech.com/select...

If the drive is bad you'll probably have a hard time finding a replacement--certainly at a reasonable price.


Report •


Ask Question