To activate the serial port communication for kernel debugging, you need to modify the same kernel configuration file.
为了激活串行端口通信以进行内核调试，您需要修改同一个内核配置文件。
If you've got a default configuration but you've just added a new kernel to your system, this might be enough to detect the new kernel and add it to your GRUB 2 configuration file.
如果已有默认配置，并在系统中刚加入新内核，只要在GRUB2配置文件中检测并添加新内核就行了。
The rsyslogd daemon, through its configuration file in /etc/rsyslog.conf), understands the /proc file system kmsg interface and uses it to extract kernel logging messages.
rsyslogd守护程序通过它的配置文件 /etc/rsyslog.conf 来理解 /proc 文件系统的kmsg接口，并使用这些接口获取内核日志消息。
Then, head over to the File systems kernel configuration section and look for the /dev file system support (EXPERIMENTAL) option.
然后转至Filesystems内核配置部分，查找 /dev filesystemsupport (EXPERIMENTAL)选项。
While you have the File systems kernel configuration section on screen, disable support for the /dev/pts file system for Unix98 PTYs if you happen to have it enabled.
当您在屏幕上看到Filesystemskernel configuration部分时，如果您碰巧启用了 /dev/ptsfilesystemforUnix98PTYs 的支持，则禁用该支持。
While you have the File systems kernel configuration section on screen, disable support for the /dev/pts file system for Unix98 PTYs if you happen to have it enabled.
当您在屏幕上看到Filesystemskernel configuration部分时，如果您碰巧启用了 /dev/ptsfilesystemforUnix98PTYs 的支持，则禁用该支持。
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