Error type 102

Usually when a vintage computer running Mac OS 9 shows that message

that could mean the version of OS 9.2 was arrived at incorrectly and may

not be for the computer it was installed on. A base level OS 9, updated,

only goes so far; a retail install disc for a later version is required; plus

any original update files. Most older support site links no longer work, so

if you see some information online pointing to Apple Support - Mac OS 9,

they generally put you on the newer home page, nothing about OS9/8/7.

If you have a compatible Mac OS system on DVD or CD for the computer,

depending on what vintage it is, you could attempt to use the Disk Tools

on there to check the hard disk drive, repair it, and perhaps erase & install

a new system.

You don't really say much about the computer, the situation involves details

and most of them are lacking where they are necessary to attempt to help.

The details vary according to the exact build model series iBook G3/G4

you have. Some last model ones do not boot into OS9 at all, but can use

OS9 as Classic in an OS X computer, no later than Tiger 10.4.11.

If your computer originally ran OS 8.1 through 8.6, a Mac OS 9.0 or later

retail install disc may work. If it supports OS 9.2, if you want to end up at

OS 9.2.1 or OS 9.2.2, get a retail OS 9.2.1 Install CD.

Is this a clamshell colors early G3 iBook, if so which one? If it is a white G3

iBook, (first was 500MHz dual-usb) which one? Then, they went to G4 as a

processor base. These also have different system/hardware requirements.

And they shipped with compatible discs, with part numbers for their series.

The error message implies the incorrect OS version was installed or partial

installation had failed; there may also be other hardware issues involved.

An old obsolete KB article from Apple support suggests the system is too

old for the computer to use; but it may be an improper installation of one

that is not correct for the ROM version of the computer. Perhaps you have

an older computer that was supposed to have a firmware update, too?

Does the iBook have a tray-load optical drive, or a slot-load? Here's a page

of iBook models, all models from the first to last; to help identify your model.

There also is a page where you can figure exactly what one you have.

•Apple iBook Specs (All iBook Technical Spec) - everymac:

http://www.everymac.com/systems/apple/ibook/index-ibook.html

The issue likely is the lack of matching supported software, to include correct

installer discs and other items; some models required firmware update to run

a later system. Mostly after OS X was introduced a major update was issued.

Good luck! 😐