linux 5.20(linux 5.2)

linux

怎么切换到linux串口调试控制台?

 利用串口终端作为Linux控制台,可以免去额外的键盘,显示卡和显示器,同时可将Linux主机作为一个任意用途的嵌入式黑匣。那么LINUX控制台怎么定向到串口终端?下面跟着学习啦小编一起来了解一下吧。  LINUX控制台怎么定向到串口终端

  目的: 台机已经装好Linux,显示器有问题,平时一般都SSH控制,当Linux网络挂的时候,想通过串口来管理。

  硬件:台机自带两个串口(上面的是COM1) or ttyS0# cat /boot/grub/menu.lst

  # grub.conf generated by anaconda

  #

  # Note that you do not have to rerun grub after making changes to this file

  # NOTICE: You have a /boot partition. This means that

  # all kernel and initrd paths are relative to /boot/, eg.

  # root (hd0,0)

  # kernel /vmlinuz-version ro root=/dev/vg00/lv_root

  # initrd /initrd-version.img

  #boot=/dev/hdb1

  serial –unit=0 –speed=9600 –word=8 –parity=no –stop=1

  terminal –timeout=10 serial console

  default=2

  timeout=20

  #splashimage=(hd0,0)/grub/splash.xpm.gz =>这些在console下会工作不正常,注释掉。

  #hiddenmenu

  title CentOS (2.6.18-92.1.22.el5)

  root (hd0,0)

  kernel /vmlinuz-2.6.18-92.1.22.el5 ro root=/dev/vg00/lv_root rhgb quiet

  initrd /initrd-2.6.18-92.1.22.el5.img

  title CentOS Serial – Console (2.6.18-92.1.22.el5)

  root (hd0,0)

  kernel /vmlinuz-2.6.18-92.1.22.el5 ro root=/dev/vg00/lv_root console=ttyS0,9600 console=tty0

  initrd /initrd-2.6.18-92.1.22.el5.img

  title CentOS Console – serial (2.6.18-92.1.22.el5)

  root (hd0,0)

  kernel /vmlinuz-2.6.18-92.1.22.el5 ro root=/dev/vg00/lv_root console=tty0 console=ttyS0,9600

  initrd /initrd-2.6.18-92.1.22.el5.img

  title CentOS Xen (2.6.18-92.1.2

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