Could you please upload your /etc/fstab file? Maybe when the cdrom is mounted, it is mounted with the wrong permissions.
You can try to remount the cdrom with the correct permissions - check the man page for mount for details.
Could you please upload your /etc/fstab file? Maybe when the cdrom is mounted, it is mounted with the wrong permissions.
You can try to remount the cdrom with the correct permissions - check the man page for mount for details.