dev file goes missing after reboot

[Philip Walden]

Mikkel L. Ellertson wrote:
> Philip Walden wrote:
>   
>> I have just started using jpilot to sync my Palm-top.
>>
>> Jpilot expects to have /dev/pilot links to the device file connecting
>> the palmtop. In this case, I do a
>>
>> ln /dev/ttyS0 /dev/pilot
>> chmod o+rw /dev/pilot
>>
>> This work great. However, when I restart the computer the next day, the
>> link is gone. I have to recreate it.
>>
>> This is the first I have noticed this behavior. Any idea as to why this
>> happens?
>>
>> Phil
>>
>>     
> Because Fedora is using udev to control device entries, devices and
> symlinks that you create yourself do not survive a reboot. This is
> because /dev is a memory file system, not a real directory on the
> hard drive, once udev is started. (Sort of like the /proc file
> system. "/dev /dev tmpfs rw 0 0")
>
> The way to get lasting symlinks is to create a udev rule for it. I
> probably create a file in /etc/udev/rules.d/55-palm.rules for the rules.
>
> Mikkel
>   
Modifying the udev rules worked for me.

You learn something new every day.

Thanksyou