Gray apple screen and no progress wheel
PowerBook G3 Wallstreet, Mac OS X (10.2.x)
PowerBook G3 Wallstreet, Mac OS X (10.2.x)
The computer would have never booted up without the <8GB boot disk.</div>
Actually, as long as all the OS components needed during startup were located within the first 8GB of space, it MAY have worked. So your initial Mac OS X installation and immediate OS updates would likely have been under the limit, since nothing else was on the drive. As soon as a later updater or installer (like QuickTime) put some of those OS components above the 8GB limit, it would stop working. So it's possible this "weird event" happened when the "data" (your music and docs) was copied onto the hard drive. Any updates performed after that point would have placed OS components above the limit.
But it doesn't explain the "weird event." A new battery would not affect partitioning in any way I can imagine.
Gray apple screen and no progress wheel