daniell@trillian.beachbash.net wrote

>   I'm writing to ask if anyone has successfully booted using the
> partition 0 method from an IDE drive connected to the Sonnet Tempo Ultra
> 66 (ACARD 6260 [ATP860]), and if so, what open firmware command was
> issued.

I cannot say for sure, since all my NetBSD-ppc macs use SCSI, but I have
a 8600 running MacOSX, whose boot device is (from nvram command)

boot-device     pci1/UltraTek100+@E/FrmTk-0@10,0/@1:6

So, for your card, you may try simply /bandit/ACARD,6260/@0:0

HTH,

-- 
Xavier
http://www.freetibet.org
http://www.tibet.fr/