TP-LINK TL-WR703N OpenWRT 12.09 从U盘启动

先把固件弄到12.09,12.09的地址在这http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/

cd /tmp
wget http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin
sysupgrade openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-sysupgrade.bin 

重新启动之后,安装相关的软件包(我的是ext4的U盘,并且对应/dev/sda)

opkg update
opkg install kmod-usb-ohci kmod-usb2 kmod-fs-ext4 kmod-usb-storage
# 如果找不到U盘的话reboot一下

mkdir /tmp/root #创建/挂载点
mount -o bind / /tmp/root/ # 挂/

cp /tmp/root/* /tmp/u -a # 将系统备份到U盘

echo "--booted from flash--" >> /etc/banner # 设置内部启动标识
echo "--booted from u disk--" >> /tmp/u/etc/banner  # 设置U盘启动标识
umount /tmp/u # 卸载U盘
umount /tmp/root/ # 卸载/

opkg update # 更新软件源
opkg install block-mount # 安装 block-mount 


vi修改/etc/config/fstab文件为如下mount内容:

config mount
#       option target   /home
        option device   /dev/sda 
        option fstype   ext4
        option options  rw,sync
        option enabled  1
        option enabled_fsck 1
        option is_rootfs 1



成功的话启动你能看到:

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 ATTITUDE ADJUSTMENT (12.09, r36088)
 -----------------------------------------------------
  * 1/4 oz Vodka      Pour all ingredients into mixing
  * 1/4 oz Gin        tin with ice, strain into glass.
  * 1/4 oz Amaretto
  * 1/4 oz Triple sec
  * 1/4 oz Peach schnapps
  * 1/4 oz Sour mix
  * 1 splash Cranberry juice
 -----------------------------------------------------
--booted from u disk--
root@OpenWrt_SLBoat_Mod:/# df -h
Filesystem                Size      Used Available Use% Mounted on
rootfs                   14.9G    361.3M     13.8G   3% /
/dev/root                 2.0M      2.0M         0 100% /rom
tmpfs                    14.3M     92.0K     14.2M   1% /tmp
tmpfs                   512.0K         0    512.0K   0% /dev
/dev/sda                 14.9G    361.3M     13.8G   3% /overlay
overlayfs:/overlay       14.9G    361.3M     13.8G   3% /




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