Aliases for kernel image, its functionality and options.
tomem
Loads kernel and whole image in yaboot, then starts system
normally. After booting, CDROM will not be needed anymore. Requires
128Mb or more of ram. Should work with cdroms not connected to pmac-ide
too.
fromcd
Loads kernel and initrd, starts system. In initrd searches
for cdrom, mounts it and mounts image from it. CDROM will be needed
(and locked), because image is not copied to memory. Should run with
32Mb of RAM. Only popular IDE/SCSI controllers are supported.
tomempost
Like 'fromcd' loads kernel and initrd, starts system. In
initrd searches for cdrom, mounts it, and then, copies image to memory
and mounts it from there. Umounts CDROM so drive can be used. Requires
128Mb of ram. Only popular IDE/SCSI controllers are supported. This
option should run faster than 'tomem' if you have DMA switched on, try
adding ide1=ata66 or something similar (check ide help).
memtest
Loads kernel and initrd. Searches for cdrom and mounts
image as root (/) read-only, umounts initrd and flushes ramdisk. Starts
memtester with all memory minus 3Mb and reduces amount by 0.5Mb until
memtester will not be killed.