Sun hardware released after Solaris 8 no longer supports 32 bit booting;
you can only run 64 bit kernels on those. This applies to all Ultra-III
systems as well as the Sun Blade 100 and other UltraSPARC-IIe systems.
SPARC: In order to boot a 32 bit kernel on other 64-bit capable systems,
type "boot kernel/unix" at the "ok" prompt.
x86: In order to boot a 32 bit kernel on other 64-bit capable systems,
type "b kernel/unix" at the "(b)oot or ..." prompt.
Setting the "boot-file" in the EEPROM to "kernel/unix" makes it
the default kernel. Alternatively, you can move away the sparcv9/unix
file in which case the boot loader will fall back to the 32 bit kernel.
Patch installation may restore that file, though.
Beware: when specifying "boot -s", or any boot command with flag
arguments, the standard default kernel/sparcv9/unix kernel will be
booted; you need to specify "boot kernel/unix -s".
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