Powermac G3 350mhz Harddisk problem need to update firmware, but can not boot from the harddrive only the cdrom. How to boot from the hd, when It's not able update the firmware from the bootcd.. Getting message startup volum is not writeable. When I change startup to my hd, it says CORRUPT HD.. Why?? I have just format and veryfied the drive, and copied the full system folder into the first 6Gig of the HD 60 gig hd split into 16 partitions so they not exced the 6gig limit.. Is the Harddrive to Big??? The only cd it let me boot with is MacOS 9.2.1 and osX.. Running fine but wont let me boot from the HD.