preserving device symlinks across reboots

[David Newman]

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To use ntpd with an HP GPS receiver on RELENG-6.2, I have a symlink from
the first serial port to the HP GPS device:

somehost# ls -l /dev/hpgps0
lrwxr-xr-x  1 root  wheel  10 Dec  1 21:06 /dev/hpgps0 -> /dev/cuad0

This works fine since the GPS receiver is attached to cuad0.

Problem is, this symlink disappears whenever a reboot is needed, for
example after patching the kernel.

How best to preserve the symlink across reboots? I created an rc.local
file making a new symlink, but maybe there's a better way.

thanks

dn

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