chmod doesn't work

stonecrest · 02-27-2005, 03:12 AM

Code:

# chmod 666 /dev/dsp
# ls -al /dev/dsp
lr-xr-xr-x  1 root root 10 2005-02-27 02:04 /dev/dsp -> /dev/sound

No matter what I do, I can't get /dev/dsp to have write permissions. Someone please put me out of my misery, what is going on?

acid_kewpie · 02-27-2005, 04:22 AM

/dev/dsp is a symlink, you will need to modify the permissions on the actual device it's pointing to.

if this is a system using udev, then you can modify the creation rules for it, rather than manually updating it.

stonecrest · 02-27-2005, 04:25 AM

Thanks for your reply. My system is not using udev afaik.

I also do have /dev/sound chmoded to 666. But Rhythmbox keeps telling me that it can't write to /dev/dsp, which is why I'm trying to change the permissions for it..

Code:

drw-rw-rw-   1 root audio       0 1969-12-31 17:00 sound

320mb · 02-27-2005, 04:31 AM

you can't write to /dev/dsp
another device/program actually accesses it and manipulates it's output..........

dinges · 02-27-2005, 04:43 AM

When you chmod a symlink (as you do) you're really chmodding the file it points to. Try chmod -v 666 /dev/dsp. The -verbose parameter will give you feedback. The symlink mod will remain the same but /dev/sound will have changed.