I apologize if I spread misinformation about the usage of HFS+ partitions. My experience was that a Performa 630 with a 20 GB Maxtor IDE drive would not boot with any HFS+ partition on that drive, no matter if the boot partition was HFS. It might depend strongly to the make of disk drive and the formatting tool you chose, probably to the order of partitions. I attempted several times to fix the issue, but anytime I made any of the partitions HFS+ the P630 refused to boot from that same disk at all.

Could you please tell the details about software/hardware configurations which would run properly with mixed HFS/HFS+ partitions on the boot disk of a P630 ?

Moderator, please feel free to wipe out the misleading portion of my contribution to the thread.