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→Sending side: make sure to disable 'quiet'
console=ttyS0,115200 console=tty0
</pre>
{{Warning|make sure kernel command line does '''not''' contain the word '''<code>quiet</code>''', otherwise most of the kernel messages will not be printed to console.}}
For example, in GRUB boot loader configuration file <tt>/boot/grub/grub.conf</tt> it looks like this:
