+ "setenv stdout serial;" \
+ "setenv stdin serial,usbkbd;" \
+ "for dtype in ${umsdevs} ; do " \
+ "if itest.s sata == ${dtype}; then " \
+ "initcmd='sata init' ;" \
+ "else " \
+ "initcmd='mmc rescan' ;" \
+ "fi; " \
+ "for disk in 0 1 ; do " \
+ "if $initcmd && $dtype dev $disk ; then " \
+ "setenv stdout serial,vga; " \
+ "echo expose ${dtype} ${disk} " \
+ "over USB; " \
+ "ums 0 $dtype $disk ;" \
+ "fi; " \
+ " done; " \
+ "done ;" \
+ "setenv stdout serial,vga; " \
+ "echo no block devices found;" \
+ "\0" \
+ "initrd_high=0xffffffff\0" \
+ "upgradeu=for dtype in ${bootdevs}" \