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[Wedge100BF-series] Console failure Follow

matt_tsai 蔡明佑

April 22, 2025 01:38
Updated

Purpose:

This is the troubleshooting guide for Console failure on Wedge100BF-series.

Model:

Wedge100BF-32X/65X/32QS

Procedure:

Step 1. Make sure the problem is not cause by physical console cable

Try another console cable that already ensure it can work well.

Step 2. Check the Baud Rate setting on the console terminal

The default baud rate of BMC is 9600, make sure the console terminal setting is correct.

[Note] OpenBMC console could be login with username/password as root/0penBMC. (the first character "0" is zero, not alphabet "o") "sol.sh" command switch to COMe(CPU) console, and press "ctrl +x" get back to OpenBMC console.

If try press "Enter" and "ctrl + x" still couldn't see anything on console terminal, the switch required RMA.

If see some garbled text when press "Enter", but can check BMC normally after "ctrl + x", please check the following Step 3.

Example:

Step 3. Modify the sol.sh and BIOS baud rate and reset to 57600

Please try to modify baud-rate from "sol.sh" script and try to connect to BIOS.
There are 5 baud-rate BIOS can modify: 9600/19200/38400/57600/115200
default is 57600, please try the other 4.
If you get the correct baud-rate of BIOS, when boot COM-E, you can see BIOS show correctly.
Enter BIOS and reset it to default, or configure BIOS as below

Advanced > Serial Port Console Redirection > Console Redirection Settings > Bits per second
Modify it to 57600

Please refer to the following step:
1) modify /usr/local/bin/sol.sh, change default baud-rate from 57600 to other (EX:115200)

root@bmc:~# vi /usr/local/bin/sol.sh
---
/usr/bin/microcom -s 57600 $TTY
(change to)
/usr/bin/microcom -s 115200 $TTY
(save file and exit)

2) use command "wedge_power.sh reset; sol.sh" reset COME and connect to it.

root@bmc:~# wedge_power.sh reset; sol.sh 
Power reset microserver ... Done
You are in SOL session.
Use ctrl-x to quit.
-----------------------

3) See if you can see BIOS show correctly,
if not, press [ctrl-x] back to openBMC, do step 1 with other baud-rate and try again.

<-- Press [ctrl-x] in COME 
-----------------------
Exit from SOL session.
root@bmc:~#

4) When you can see BIOS, enter it and change it's baud-rate to 57600

5) Save and exit

6) After leave BIOS, press [ctrl+x] return to openBMC
7) Change /usr/local/bin/sol.sh back as default (57600).

root@bmc:~# vi /usr/local/bin/sol.sh
---
/usr/bin/microcom -s 115200 $TTY
(change to)
/usr/bin/microcom -s 57600 $TTY
(save file and exit)

8) You can check if it's no problem with reboot switch, and see if BIOS, ONIE and NOS all show normally.

Note: Since the sol.sh setting won't be saved after OpenBMC reboot, we recommend to reset the baud rate to default, 57600, as the article.

Ex. If you still got garbled text on console terminal with Mac OS of your PC, please try on Windows.

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Edgecore Networks Corporation

END USER LICENSE AGREEMENT

1) Trademarks:

2) License grant:

3) Open Source Software:

4) Ownership and Copyright:

5) Unauthorized Use:

6) No Warranties:

7) Limited Liability:

8) Compliance with laws:

9) Termination:

10) Governing Law and Jurisdiction:

11) General:

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Procedure:

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