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I seem to be unable to change the permissions on the /dev/ttyS0 device of a CentOS 6.4 machine.

Every time I reboot, the system goes back to the defaults.

I've googled that I need to edit the udev rules, but I can't seem to figure out how to do it.

Can someone help me?

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@dawud In the future, please also remove greetings and signatures from posts. Thanks! –  slhck Apr 8 '13 at 18:47

1 Answer 1

up vote 2 down vote accepted

Something along the lines:


KERNEL=="ttyS[0-9]*", NAME="tts/%n", SYMLINK+="%k", GROUP="uucp", MODE="0666"

Can be easily found in you favourite search engine.

Check here. Also check this answer.

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