Hi People,
Recently an issue where I was trying to changed the group and permission
associated with the device /dev/net/tun. As I knew devices were
controlled by udev I went looking at its configuration and found this
rule 50-udev.rules:KERNEL=="tun", NAME="net/%k".
Some research on the web suggested that modifying the default rules was
a bad idea and that you should in fact override them with your own
custom rules. So I tried setting up a custom rule, this failed. I then
tried modifying the default rule this also failed. A helpful response
from here pointed me to MAKEDEV and I was able to change
/etc/makedev.d/01linux-2.6.x to do what I wanted. But this has raised a
couple of questions for me.
1. If udev doesn't directly control the creation of this device why is
there a udev rule for it?
2. Is modifying /etc/makedev.d/01linux-2.6.x likely to cause me issues
in future ?
My investigation to date has led to me to believe that devices listed in
/etc/udev/makedev.d/ are the devices that you always want to be present
on a system rather than relying on something about your systems Hardware
configuration to lead to a device being created. Is this correct ?
Thank you for any thoughts / information you can share relating to this.
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