update lbu.conf patch in alpine.sh
@@ -120,7 +120,7 @@ interface eth0
fallback static_eth0
EOF_CAT
-sed -i 's/# LBU_MEDIA=.*/LBU_MEDIA=mmcblk0p1/' etc/lbu/lbu.conf
+sed -i '^s/# LBU_MEDIA=.*/LBU_MEDIA=mmcblk0p1/' etc/lbu/lbu.conf
cat <<- EOF_CAT > root/.profile
alias rw='mount -o rw,remount /media/mmcblk0p1'
