Title: How to recover EG firmware under boot? [Print this page] Author: GTAC-Sophia Time: 2023-7-14 10:51 Title: How to recover EG firmware under boot? Requirement:
When the device loses its firmware, you need to do ctrl mode upgrade for disaster recovery. Topology:
Configuration Steps:
Step1: Connect the console cable to the switch. Connect Ethernet cable to the first copper port or MGMT port （physical port doesn't link up until data transfer starts, you also can not check ping connectivity during this process)
Step 2: Assign IP address 192.168.64.1 to laptop, enable TFTP Server and also prepare the firmware, put on the firmware with the same folder with tftp server.
Step3: Console in device, restart devices, press "CTRL + C" when system prompts, enter BOOT Mode, Input 0
Step 4: Input 1, then upgrade firmware with the following steps.
Step 5: Input "yes"
Step 6: Press "CTRL+Z" to return to upper level, then choose "2" to run main.
Verification
Devices succeed in entering Main mode, execute command "show version", check the firmware version.
Notice: If uploading the firmware failed or after uploading the firmware, the device stuck on the run main step.
Please try to format the flash
, and then re-recover the firmware.
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