>What option can I specify to install 32-bit Solaris in a 64-bit Athlon/Turion?
There is no such installation option.
You will always get both the 32 bit and th e64 bit runtime loaded.
In order to boot the 32 bit kernel, you need to change /boot/grub/menu.lst
and add kernel/unix as the first argument of the "multiboot" command line,
e.g.,:
# Default boot entry
title Solaris Nevada snv_48 X86
kernel /platform/i86pc/multiboot
module /platform/i86pc/boot_archive
# 32 bit boot entry
title Solaris Nevada snv_48 X86 (32 bit)
kernel /platform/i86pc/multiboot kernel/unix
module /platform/i86pc/boot_archive
Casper
