rm /dev/dvd; ln -s /dev/hdd /dev/dvd has no effect after rebooting.

stf92 · 07-03-2011, 03:00 PM

Kernel 2.6.21.5, Slackware 12.0

Hi:
Because mplayer looks for /dev/dvd and

Code:

lrwxrwxrwx 1 root root 8 2007-01-24 07:35 /dev/dvd -> /dev/hdc

whereas my the disc I want to play is in /dev/hdd (/dev/hdc is a CD-ROM drive), I do

Code:

$ rm /dev/dvd
$ ln -s /dev/hdd /dev/dvd

which gives

Code:

lrwxrwxrwx 1 root root 8 2007-01-24 07:35 /dev/dvd -> /dev/hdd

OK. Now I reboot the machine and, when I look at /dev/dvd, again it is linked to /dev/hdc. How can this be? Or should it be a hard link that I must do? Thanks.

andrewthomas · 07-03-2011, 03:24 PM

couldn't you just add:

Code:

rm /dev/dvd
ln -s /dev/hdd /dev/dvd

to /etc/rc.d/rc.local and

Code:

chmod +x /etc/rc.d/rc.local

stf92 · 07-03-2011, 03:57 PM

Thanks for the feedback. I did what you said. As I already have other stuff in /etc/rc.d/rc.local, and it always gets executed, I have no doubt this will also execute in the next reboot.

If I ls -s a regular file, the link stays there until I explicitly remove it. But /dev/dvd is not a regular file. May be this the reason why it reappears?

chrism01 · 07-03-2011, 07:19 PM

You may need to read this http://linux.die.net/man/8/udev

andrewthomas · 07-03-2011, 07:25 PM

This is pretty good also:

http://www.reactivated.net/writing_u...#example-cdrom