NOTE: Enable Linux Serial Console

Overview:

在Single-Board/伺服器MB進行開發/測試時, 不一定都具備影像(VGA)輸出, 這時就透過console port進行指令的輸入, 並監控系統輸出

Do configuration on /etc/default/grub

command: sudo vim /etc/default/grub
原始的設定如下:

Image Not Showing Possible Reasons

The image file may be corrupted
The server hosting the image is unavailable
The image path is incorrect
The image format is not supported

在GRUB_CMDLINE_LINUX=""中加入console輸出, 經由ttyS0, Baud值為115200

Image Not Showing Possible Reasons

The image was uploaded to a note which you don't have access to
The note which the image was originally uploaded to has been deleted

接著使用以下指令更新grub
command: sudo update-grub

Image Not Showing Possible Reasons

The image file may be corrupted
The server hosting the image is unavailable
The image path is incorrect
The image format is not supported

完成後, 重啟即可

Ref.

https://zhuanlan.zhihu.com/p/447014333
https://www.linusakesson.net/programming/tty/index.php
https://blog.csdn.net/weixin_43863487/article/details/107951863