This post reminded me that Jaguar MUST be installed on the first partition. It's not on some disks. It's on any drive. A genius at the Palo Alto Apple Store explained to me that UNIX can only see itself to boot when the system is on the first partition. I forgot about this until Sensei posted this below. I don't know about the size of the partition needing to be 8GB although that's the size of mine. I think 10GB is better size to try. You definitely can not and do not want to install OS X on any other partition. It Must be the first one. k On Sunday, January 12, 2003, at 10:35 PM, Sensei (Eliezer Navarsky) wrote: > Please note... On some disks Jag will only properly install on a > partition on the first 8 Gb of the disk... > > Try formating this way: > > 1 partition no larger then 7.9 Gb > 1 partition for the rest (can be subdivided in several additional > partitions) > > This could be it. > > Also, your RAM could be just bad enough... Jank it all out but one. > Try installing. If it doesn't work, try it with the other modules (one > at a time)... > > Hope this helps.