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How to recover Switch firmware under boot ?

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Post time 2021-4-30 18:52:10 | Show all posts |Read mode
Edited by liuwei8@ruijie.com.cn at 2021-4-30 18:58

For Switch with console port, the guide for firmware recovery is shown as below:
Monitor Mode Upgrade (for recovery)
图片12.png
Notice

1. Ctrl mode upgrade is designed for disaster recovery
2. If system prompts "send download request", you have to follow these monitor mode upgrade steps.

I. Tips
1. Connect console cable to the switch
2. Connect Ethernet cable to the first copper port or MGMT port (phycial port doesn't linked up until data transfer start, you also can not check ping connectivity during this process)

II. Upgrade Steps
Note: disable windows fireware during the whole upgrade process.
1. Connect switch console port
2. Console login to the system
1) Enter monitor mode, change the baudrate to 115200
图片13.png
2) Teminate this progress, enter Ctrl> mode
Note: during normal start-up process, Press "ctrl+C" to interrupt, change the baudrate to 115200 first
图片14.png

图片15.png

图片16.png
Relogin the CLI page of switch since the baudrate has been changed.
图片17.png
Choose 1 for Xmodem utilities, and then choose 1 for main program upgrading, then choose transmission mode as sendXmodem(N) for firmware transmission
图片18.png
3) Load upgrade package
图片19.png
4)  Show version
20.png



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