No permission on dvdrw station, wrong mounting point?

Rob

5/14/23, 3:30 PM

tried burning an audio cd through a .cue file but no cigar. For some reason beyond my understanding the dvdrw is mounted at ~/mnt/dvdrw. Not knowing if that is the right place I found that I have no permissions whatsoever to use the device. I don't burn that much, but sometimes folks want an old fashioned cd and I would like to help them out. What can be done about this, anyone? Thanks beforehand!

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dvd

mount

waltinator

5/14/23, 5:32 PM

"no cigar" is a useless description of the error. Was there an error message? How did you "tried burning an audio CD through a `.cue` file"? Read https://askubuntu.com/help/how-to-ask and https://askubuntu.com/help/formatting

Score:2

Ubuntu

waltinator

5/14/23, 5:27 PM

Many device access problems can be resolved through group membership changes.

You can find the device name by watching sudo journalctl --follow as you connect your device. OR ls -1 /dev >dev.before, connect the device, wait 10 seconds, ls -1 /dev >dev.after;diff dev.{before,after}.

Specifically, if ls -l shows that the group permissions (the second "rwx" triplet) is "rw" (e.g."-rw-rw----"), then, adding oneself to the group that owns the device will grant rw access.

Here's how:

# change to your device name 
device="/dev/dvdrw"
sudo adduser $USER $(stat -c "%G" $device)

This allows you membership in the group that can rw the device, but there is one more step.

To make all your processes members of the new group, logout and login. Group memberships are set up at login time.

To create a single process in the new group (for testing, prior to logout/login):

newgrp $(stat -c "%G" $device)

or, just type the group name. See man newgrp.

To see how it's mounted, grep dvdrw /etc/fstab /etc/mtab. /etc/fstab is how we tell the system to mount filesystems, /etc/mtab is a system-generated file describing what is mounted at the current time.

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