If anyone can help. Was trying to upgrade from OS9.0 to OS 9.1. Something went wrong and it aborted. Won't start from the HD. The 2 DVD/CD startups say the drive cannot be mounted and want to initialise. I still have data oin the drive. Drive is still recoqnized/verified by Drive First Aid but cannot be mounted. ANy hints as to where yo look for help? Apple.com is a bit nebulous.

IMac DVD G3 with OS 9

thanks