I have this IPX currently running 1.2 and am attempting to
install ALPHA-1.3 in this manner:

Bring up machine in single user mode
run : dd if=miniroot-13A.fs of=/dev/rsd0b bs=20b conv=sync && halt
boot /sbus/esp/sd@1,0:b netbsd -s

eventually I see:
no file system for sd1 (dev 0x709)
cannot mount root error 79

I then get prompted for values but no keyboard input
is accepted - all I get is stray interrupts until I get a panic : <
I CAN press Return but the defaults aren't right so I cant get there from
here...

So, anyone managed to install ALPHA-1.3 via miniroot??

Thanks, gerry