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This is a new OpenFirmware CHRP script designed to be automatically
configured by ybin. It is more robust then previous CHRP scripts, it
includes the following capabilities:
* Multibooting GNU/Linux, MacOS 8.* or 9.* MacOSX, Darwin, direct from
* CDROM, Network and into an OpenFirmware prompt.
* Presenting a real menu of OS choices.
* Automatic configuration by ybin. This script should NOT be edited
by the user. It should also not be used without ybin, its not
directly useable by OpenFirmware.
* Configurable colors. (see the yaboot.conf(5) man page).
The multiboot menu is only presented when an extra OS is defined in
/etc/yaboot.conf, otherwise this script loads yaboot without any user
interaction.
To enable a multi boot menu add bsd=ofpath and/or macos=ofpath and/or
macosx=ofpath, and/or darwin=ofpath where ofpath is the OpenFirmware
device path to the MacOS or MacOSX boot partition. Example:
macos=hd:10 you can also specify a unix device node, ie: /dev/hda5,
and ybin will translate it automatically using ofpath.
This script when presenting a dual boot menu will wait for a defined
number of seconds before automatically booting the default OS. Both
this delay and the default OS can be configured in /etc/yaboot.conf.
The delay is configured by adding delay=seconds. Unlike timeout this
is in seconds rather then 10ths of seconds. This option has no effect
on the yaboot boot: prompt timeout. If delay= is not set, ybin will
translate the value of timeout= to seconds and use that.
The default OS is configured by adding defaultos=macos. There is only
four values that are acceptable: linux, bsd, macos, macosx and darwin. The
default is linux. This should not be confused with yaboot's
`default=' variable.
The name and letter used to load MacOS or MacOSX (M and X
respectively) cannot be be configured. (others are D for Darwin, C
for CDROM, N for network, and O for OpenFirmware)
The Forth code in this script was written by Chris Emerson and iNOUE Koich!.
This script has only been formally tested on a Rev 1 Blue G3, a G4,
and an ibook, please report any incompatibilities.
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