set build [lindex $argv 0]
set ckpt [lindex $argv 2]
open SAM "$build/bin/sam -c $RC -R $ckpt"
pattern SAM "(guest|hyper)\[^\r]* /dev/(\[^\r]*)\r\n"
if { "$expect_out(1,string)" == "guest" } {
set guest_tty "/dev/$expect_out(2,string)"
} elseif { "$expect_out(1,string)" == "hyper" } {
set hyper_tty "/dev/$expect_out(2,string)"
send_error "Bad tty parse: $expect_out(1,string)\n"
open HYPER "-noecho /usr/bin/tip $hyper_tty"
open GUEST "-noecho /usr/bin/tip $guest_tty"