IS does not recognize the drive HARD internal

I have three, all from a school lab, that have been linked with other positive points and printers.

They are connected are not together anymore.

All three have a floppy drive and a HARD drive. Will only boot from the HARD drive.

At startup, the other two do not recognize their HARD drive and I use ea disk with the system in this regard.

Since hard drives are not 'seen' I am unable to do anything with them: fix, set up as a boot drive, etc.

They begin with the usual chimes and the Mac with the question mark, I slip the disk in and they complete commissioning.

The internal drive spin up and the indicator light flashes.

They do not show the drive HARD internal on the screen, but will show an external.

I haven't started to swap parts between the good and the other two.

Does anyone have an idea on how to activate an invisible HARD drive?

You will need to use the boot floppy disks to start the machines to run the repair disk, partition and format the HARD drive if it is still functional. Only then can you install Mac OS on the HARD drive. That's all that I remember.

Tags: Older Hardware

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