wr-740 change firmware to openwrt + luci webUI

之前介紹過了使用RS232的方式更新firmware後，想到我還沒有介紹過如何從剛買回來時就直接改機為openwrt，這邊來說明一下
其實我一開始也是參考這篇文章：http://www.mobile01.com/topicdetail.php?f=110&t=2226398
 因為一開始也不知道怎麼改…非常感謝有人熱心放上網路

一、一開始就先進到這邊準備升級吧

 二、下載openwrt的firmware (其實是OS image啦)
參考這邊下載：http://wiki.openwrt.org/toh/tp-link/tl-wr740n
或是直接由這個連結下載：http://downloads.openwrt.org/snapshots/trunk/ar71xx/openwrt-ar71xx-generic-tl-wr740n-v1-squashfs-factory.bin
但是請注意一下，這是給V1.x和V2.x升級用的喔
我的是V2.4版，所以使用openwrt-ar71xx-generic-tl-wr740n-v1-squashfs-factory
如果是其它版本的，請到下面的連結去找你的版本，裡面也有V3.x和V4.x的
http://downloads.openwrt.org/snapshots/trunk/ar71xx/

三、下載下來後，就由(一)的畫面選擇你的檔案，並按軟體升級，然後靜靜等待，剛更新完的時候是沒有網頁的，也許有人問要怎麼知道已經完成了
我是看它上面的燈號，韌體升級完後，會自動開機，等到WAN或是LAN的燈號開始閃應該就是完成了
另外： 其它的文章都說要先把原廠的設定值改回出廠設定，但依我觀查RS-232的結果，應該是不需要這個動作的，因為在網頁更新時，可以從RS-232上看到的畫面如下，這表示他只是利用html傳檔的方式，放到它的/tmp下(這是ram)，然後再把資料寫到flash中，是不是原廠設定應該沒關係

四、.更新完後，把電腦的IP設為192.168.1.2，再以telnet連線進去，不需要帳密
若看到下面的畫面就代表你成功了!!!!

五、再用「passwd」指令設定root的password(這是指向busybox的指令，表示busybox就有這個功能，不清楚busybox沒關係，這不是重點)
設完後telnet會關閉，然後sshd會啟動(因sshd一定要有密碼)
(其實sshd已經啟動了，只是因為沒有root的密碼，所以你也無法登入-->這是由comport更新firmware時看出來的)

六、因為沒有網頁的介面，所以我們來安裝個介面吧，這邊我裝過幾個版本，我還是覺得luci比較好用，所以這邊就以此為例

七、用sshd連線完成後，先下指令(這邊我是使用putty連線的)
opkg update
先取得目前的opkg的清單

八、安裝所有的LuCI套件，非https版本
opkg install luci
或是安裝LuCI套件，且支援HTTPS 的版本
opkg install luci-ssl

九、啟動uhttpd，並讓它在以後每次開機都會執行(剛安裝完並不會馬上啟動)
/etc/init.d/uhttpd enable
/etc/init.d/uhttpd start
接著用 http://192.168.1.1  連到網頁

十、網頁的登入介面如下，使用的是你在ssh登入的帳密

十一、目前使用起來還蠻多功能的，但…沒有原廠的直覺…(我的感覺啦，原廠的比較簡單)
不過基本功能，連圖表統計功能都有了，感覺還蠻棒的!!
另外還可以新增wifi button的功能，超方便的!!-->就是為了它，我才刷的!!

最後補充一下，下面是我安裝 luci時產生的訊息，不管有沒有用，就先貼出來再說了
以下為安裝過程中的訊息：
root@OpenWrt:~# opkg install luci
Installing luci (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci_trunk+svn8187-1_ar71xx.ipk.
Installing uhttpd (30) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/uhttpd_30_ar71xx.ipk.
Installing luci-mod-admin-full (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-mod-admin-full_trunk+svn8187-1_ar71xx.ipk.
Installing luci-mod-admin-core (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-mod-admin-core_trunk+svn8187-1_ar71xx.ipk.
Installing luci-lib-web (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-web_trunk+svn8187-1_ar71xx.ipk.
Installing luci-lib-core (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-core_trunk+svn8187-1_ar71xx.ipk.
Installing lua (5.1.4-8) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/lua_5.1.4-8_ar71xx.ipk.
Installing liblua (5.1.4-8) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/liblua_5.1.4-8_ar71xx.ipk.
Installing libuci-lua (2011-11-14.1-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/libuci-lua_2011-11-14.1-1_ar71xx.ipk.
Installing luci-lib-sys (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-sys_trunk+svn8187-1_ar71xx.ipk.
Installing luci-lib-nixio (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-nixio_trunk+svn8187-1_ar71xx.ipk.
Installing luci-sgi-cgi (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-sgi-cgi_trunk+svn8187-1_ar71xx.ipk.
Installing luci-lib-lmo (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-lmo_trunk+svn8187-1_ar71xx.ipk.
Installing luci-proto-core (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-proto-core_trunk+svn8187-1_ar71xx.ipk.
Installing luci-i18n-english (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-i18n-english_trunk+svn8187-1_ar71xx.ipk.
Installing luci-lib-ipkg (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-lib-ipkg_trunk+svn8187-1_ar71xx.ipk.
Installing luci-theme-openwrt (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-theme-openwrt_trunk+svn8187-1_ar71xx.ipk.
Installing luci-theme-base (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-theme-base_trunk+svn8187-1_ar71xx.ipk.
Installing luci-app-firewall (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-app-firewall_trunk+svn8187-1_ar71xx.ipk.
Installing luci-proto-ppp (trunk+svn8187-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/luci-proto-ppp_trunk+svn8187-1_ar71xx.ipk.
Installing libiwinfo-lua (23) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/libiwinfo-lua_23_ar71xx.ipk.
Installing libiwinfo (23) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/libiwinfo_23_ar71xx.ipk.
Configuring luci-lib-sys.
Configuring liblua.
Configuring libuci-lua.
Configuring lua.
Configuring luci-lib-core.
Configuring luci-lib-nixio.
Configuring luci-sgi-cgi.
Configuring luci-lib-lmo.
Configuring luci-lib-web.
Configuring luci-proto-core.
Configuring luci-i18n-english.
Configuring luci-mod-admin-core.
Configuring libiwinfo.
Configuring libiwinfo-lua.
Configuring luci-theme-base.
Configuring luci-theme-openwrt.
Configuring luci-app-firewall.
Configuring luci-lib-ipkg.
Configuring luci-proto-ppp.
Configuring luci-mod-admin-full.
Configuring uhttpd.
Configuring luci.
root@OpenWrt:~#