(Classic only) Break into MacsBug as soon as it is loaded (Classic only) Disable exetensions, except MacsBug (Classic only) Disable Extensions including MacsBug (Mac IIfx only) Set date to to get a graphical easter eggĪfter display of Happy Mac icon Key Combination (Mac IIci only) Set date to to get a graphical easter egg (OS X only) show console messages (verbose mose) during boot. (Classic only) Boot with Virtual Memory off Also disables non-essential kernel extensions (safe boot mode) (OS X, 10.1.3 and later) Disables login items. Put FireWire machine into FireWire Target Disk modeĪttempt to boot using the devalias zip from first bootable partition found Hold down until Mac logo, will attempt to boot from network server (using BOOTP or TFTP) If set to boot to X and no CD is present, may boot to 9.įorce the internal hard disk to be the startup device

Similar to reset-all in Open Firmware.įorce Quadra AV machines to use TV as a monitorįorce an AV monitor to be recognized as oneīoot from CD. Not sure about IDE drives.īoot from a specific SCSI ID # (# = SCSI ID number)Ĭlear NV RAM. For SCSI devices it searches from highest ID to lowest for a partition with a bootable system. This actually forces the system to NOT load the driver for the default volume, which has the side effect mentioned above. Prevent native drivers from loading (System 7 until 9.x?)īypass startup drive and boot from external (or CD). Will boot into Mac OS X if 9 and X are on the same partition and that’s the partition you’re booting from. Hold down until 2nd chime, will boot into Mac OS 9 ?

When OF system picker is active, open the CD tray Eject removable media ( I think Boot ROMs prior to 2.4f1 excluded the CD drive )īring up OF system picker on New World machines – boot to 9 on pre-New World machinesīring up Mac OS X boot partition selector (DTKs only?)

Macbook pro startup key combinations