+routerstation_do_upgrade() {
+ local append
+ local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
+
+ [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+ dd if="$1" bs=64k skip=1 2>/dev/null | \
+ mtd -r $append -Fkernel:$kern_length:0x80060000,rootfs write - kernel:rootfs
+}
+