super quick openwrt upgrade from WhiteRussian RC3 -> backfire 10.03

Downloaded 10.03 for brcm47xx : http://downloads.openwrt.org/backfire/10.03/brcm47xx/openwrt-wrt54g-squashfs.bin

http://downloads.openwrt.org/backfire/10.03.1/brcm47xx/

convert .bin download to .trx - instructions at https://forum.openwrt.org/viewtopic.php?id=12248

basically:

dd bs=32 skip=1 if=linksys.bin of=linksys.trx

confirm file now begins at byte 0 with HDR0::

$ hexdump -C openwrt-wrt54g-squashfs.bin | grep HDR0

then uploaded bin using scp

then installed using mtd:
http://wiki.openwrt.org/doc/howto/installing#via.the.openwrt.command.line

mtd -r write firmware.trx linux

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by default it's configured to bridge lan and wireless.
i just disabled DHCP, gave it a static IP, DNS and default gw.

configured wireless SSID + auth same as the other router in the house.

profit!