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toh:3com:3crwer100_75 [2013/02/05 10:48]
toh:3com:3crwer100_75 [2016/02/04 19:04] (current)
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 +====== 3Com 3CRWER100-75 ======
 +ASAP I' ll try to improve this article.
 +Now here is step by step installation of OpenWrt for experienced user. NOT for beginners.
  
 +===== Supported Versions =====
 +^ Version/​Model ​  ^ Launch Date   ^ S/N   ^ OpenWrt Version Supported ​  ^ Model Specific Notes   ^
 +| -               | -             | -     | trunk r28395 ​               | -                      |
 +
 +===== Hardware Highlights =====
 +^ CPU                    ^ Ram     ^ Flash   ^ Network ​  ^ USB   ^ Serial ​  ^ JTag   ^
 +| Atheros 2315A@180MHz ​  | 16MiB   | 4MiB    | 1 + 4     | No    | Yes      | ?      |
 +
 +===== Downloading files =====
 +=== OpenWrt ===
 +[[http://​downloads.openwrt.org/​snapshots/​trunk/​atheros/​|From trunk repo]]
 +   * Kernel: [[http://​downloads.openwrt.org/​snapshots/​trunk/​atheros/​openwrt-atheros-vmlinux.lzma | openwrt-atheros-vmlinux.lzma]]
 +   * RootFS: [[http://​downloads.openwrt.org/​snapshots/​trunk/​atheros/​openwrt-atheros-root.squashfs | openwrt-atheros-root.squashfs]]
 +
 +=== Other SW ===
 +   * TFTP [[http://​tftpd32.jounin.net/​tftpd32_download.html | http://​tftpd32.jounin.net/​tftpd32_download.html ]]
 +   * Putty [[http://​www.chiark.greenend.org.uk/​~sgtatham/​putty/​download.html | http://​www.chiark.greenend.org.uk/​~sgtatham/​putty/​download.html]]
 +
 +===== Installation =====
 +**You are doing everything at your own risk! Nobody is responsible for what you are doing.
 +Don't do it if you don't know what you are doing!
 +
 +Incomplete BETA version of text!
 +**
 +
 +=== Operating system ==
 +   * Set your IP: 10.10.12.2 (alt. 192.168.1.101)
 +   * Mask: 255.0.0.0
 +
 +=== TFTP ===
 +   * Start server listening on: 10.10.12.2 (alt. 192.168.1.101)
 +
 +=== Putty ===
 +   * Telnet to 10.10.12.72 (alt. 192.168.1.1) on port 9000 to get Redboot prompt
 +   * It's better to use ''​.bat''​ (Because port 10.10.12.72:​9000 open only 1 second)
 +   * You can use some usefull script from [[http://​wiki.nslu2-info.de/​pmwiki.php/​HowTo/​TelnetIntoRedBoot|wiki.nslu2-info.de/​pmwiki.php/​HowTo/​TelnetIntoRedBoot]] ​    
 +<​code>:​redboot
 +putty.exe -telnet -P 9000 10.10.12.72
 +goto redboot </​code>​
 +
 +=== RedBoot===
 +   * Verify config ( last point where you can stop the procedure )
 +<​code>​fconfig -l</​code>​
 +
 +   * Clear flash
 +<​code>​fis init</​code>​
 +
 +   * Agree with format
 +<​code>​y</​code>​
 +
 +   * Download kernel from TFTP server  ​
 +<​code>​load -r -b %{FREEMEMLO} openwrt-atheros-vmlinux.lzma</​code>​
 +
 +   * Create partition for kernel
 +<​code>​fis create -r 0x80041000 -e 0x80041000 vmlinux.bin.l7</​code>​
 +
 +   * Download RootFS from TFTP server
 +<​code>​load -r -b %{FREEMEMLO} openwrt-atheros-root.squashfs</​code>​
 +
 +   * Check free space
 +<​code>​fis free</​code>​
 +
 +   * Create partition for RootFS. Replace 0x2E0000 for number you get as difference between last number of free space and the first number. All in hex.
 +<​code>​fis create -l 0x2E0000 rootfs</​code>​
 +
 +   * Verify partition table
 +<​code>​fis list</​code>​
 +
 +   * Reboot into OpenWrt
 +<​code>​reset</​code>​
 +
 +FIXME
 +
 +===== Verify OpenWrt installation =====
 +   * Telnet to 192.168.1.1 on standard port(23)
 +   * If it does not work try:
 +     1) Telnet to 10.10.12.72 (alt. 192.168.1.1) on port 9000 to get Redboot prompt
 +<​code>​RedBoot>​ fis load -l vmlinux.bin.l7
 +RedBoot> go 0x80041000 </​code>​
 +
 +2) Now you can see Open Wrt promt.
 +<​code>​root@OpenWrt:/#​ </​code>​
 +     
 +3) Thus you have to correct booting procedure. Reboot device
 +<​code>​Telnet to 10.10.12.72
 +RedBoot> fconfig -l 
 +RedBoot> fconfig boot_script_data</​code>​
 +
 +Enter following:
 +
 +<​code>​fis load -l vmlinux.bin.l7
 +go 0x80041000
 +</​code>​
 +
 +Save and reboot.
 +
 +===== Serial on JP1 =====
 +{{:​media:​3com:​serial.jpg?​400}}
 +
 +  * brown = gnd
 +  * red, orange = tx and rx (sry, I don't know which is which and now I can't test it)
 +
 +===== Tags =====
 +[[meta:​tags|How to add tags]]
 +{{tag>​2005-JAN FastEthernet 5Port integrated 802.11bg 2Ant DetachableAntenna 16RAM 4Flash Serial}}