TOPIC
A Power Macintosh G3 (Blue and White) will not start up with Mac OS 8.x when holding down the option key.
DISCUSSION This is a result of the New World ROM architecture on these computers. When trying to start up from the default operating system, it will scan drives and partitions until it finds a suitable one. If it comes across the MOSX_OF3_Booter partition first, it will start up with Mac OS X Server instead of Mac OS 8.x. The MOSX_OF3_Booter partition is a hidden Mac OS format partition that contains a blessed System Folder with a Finder, System, and BootX file. The BootX file is analogous to the Mac OS ROM files used in Mac OS and is needed to start up Mac OS X Server. Solution Make sure Mac OS 8.5 or later is installed on the first partition on the drive. |
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| Document Information | |
| Product Area: | Mac OS System Software |
| Category: | Mac OS X Server |
| Sub Category: | Troubleshooting |
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