erx recovery

ER-X恢復工具

該工具有助於使用串行控制台和 TFTP 恢復損壞的 Ubiquiti EdgeRouter X 設備。當核心無法啟動時，它還會偵測損壞的快閃記憶體。

它已經在Ubuntu 20.04下進行了測試。

要求

• Linux
• 連接到 EdgeRouter X 的串行控制台。
• 連接到本機的 EdgeRouter X 的eth0 。

用法

 Usage of erx-recovery:
  -device-ip string
    	device IP address for the TFTP client, needs to be in the same network as the TFTP server (default "172.16.3.212")
  -image string
    	path to linux kernel image (default "/path/to/kernel")
  -local-ip string
    	local IP address for the TFTP server (default "172.16.3.210")
  -log string
    	directory for log files (default "./logs")
  -tty string
    	path to serial console (default "/dev/ttyUSB0")
  -verbose
    	Increase verbosity (default true)

偵測損壞的快閃記憶體

如果快閃記憶體（NAND）的重要部分損壞，核心將無法啟動。在這種情況下，您會在日誌檔案中看到類似以下內容：

 Please choose the operation:
   1: Load system code to SDRAM via TFTP.
   2: Load system code then write to Flash via TFTP.
   3: Boot system code via Flash (default).
   4: Entr boot command line interface.
   7: Load Boot Loader code then write to Flash via Serial.
   9: Load Boot Loader code then write to Flash via TFTP.
   r: Start TFTP recovery.
default: 3
 0

3: System Boot system code via Flash.
## Booting image at c0040000 ...
Bad Magic Number,53F511F6
Search header in next block address 460000
Bad Magic Number,578CD49B
Search header in next block address 480000
Bad Magic Number,D718AC07
Search header in next block address 4a0000
Bad Magic Number,F074335F
Search header in next block address 4c0000
Bad Magic Number,E761A28A
Search header in next block address 4e0000
Bad Magic Number,A8CE778A
Search header in next block address 500000
... [many more]