https://github.com/digineo/erx-recovery

Ubiquiti EdgeRouter X recovery tool
https://github.com/digineo/erx-recovery

edgerouter flash tftp ubiquiti ubnt

Last synced: 6 days ago
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Ubiquiti EdgeRouter X recovery tool

• Host: GitHub
• URL: https://github.com/digineo/erx-recovery
• Owner: digineo
• License: mit
• Created: 2020-12-21T11:19:10.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2022-05-31T08:39:00.000Z (over 2 years ago)
• Last Synced: 2024-06-20T10:16:54.521Z (5 months ago)
• Topics: edgerouter, flash, tftp, ubiquiti, ubnt
• Language: Go
• Homepage:
• Size: 15.6 KB
• Stars: 17
• Watchers: 3
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ER-X recovery tool

This tools helps to recover broken Ubiquiti EdgeRouter X devices using a serial console and TFTP.

It also detects damaged flash when the kernel is not able to boot.

It has been tested under Ubuntu 20.04.

## Requirements

* Linux

* Serial console attached to the EdgeRouter X.

* `eth0` of the EdgeRouter X connected to the local machine.

## Usage

```

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)

```

## Detection of damaged flash

If important parts of the flash memory (NAND) are damaged,

the kernel is unable to boot. In this case you see something like this in the log file:

```

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]

```