i have ubuntu dapper installed. it does not read my dvd drive. though CDs are read easily. an icon appears on the desk top. I tried to get mplayer to open dvd but got this following message:


91 audio & 204 video codecs
Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support.
You will not be able to use your remote control.
Playing dvd://1.
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdread: Could not open /dev/dvd with libdvdcss.
libdvdread: Can't open /dev/dvd for reading
Couldn't open DVD device: /dev/dvd
File not found: '1'
Failed to open dvd://1


Exiting... (End of file)
shivkumar@shivkumar-desktop:~$



pl help.
shiv kumar

Does the symlink /dev/dvd point to that drive?

don't quite follow what you are saying
sk

When you tell mplayer to open dvd:// it tries to open /dev/dvd. That should just be a symlink, and if playing cd's is working for you, and its one drive, then that symlink should point to the same place as /dev/cdrom.

its the same DVD CD-R drive. how do I activate this symlink?

Also I cannot login as root. whenever i try to do so on dapper, i get the message that systems administrator cannot login from this page...

what to do?

sk

to create the symlink:

ln -s /dev/cdrom /dev/dvd OR
ln -s /dev/cdrecorder /dev/dvd

To log in as root:

Ubuntu uses sudo instead of su. To do anything as root, you have to put sudo before the command. For those last commands it has to be:

sudo ln -s /dev/cdrom /dev/dvd
sudo ln -s /dev/cdrecorder /dev/dvd

The system will then prompt for your password and then the process will go through

did as suggested and got the following reply:

shivkumar@shivkumar-desktop:~$ sudo ln -s /dev/cdrom /dev/dvd
Password:
ln: creating symbolic link `/dev/dvd' to `/dev/cdrom': File exists
shivkumar@shivkumar-desktop:~$ sudo ln -s /dev/cdrecorder /dev/dvd
ln: creating symbolic link `/dev/dvd' to `/dev/cdrecorder': File exists
shivkumar@shivkumar-desktop:~$


But am still unable to read the DVD. Its a data DVD put out by a computer magazine.

sk

I didnt like the way ubuntu/kubuntu made you use sudo for everything. The trick is to do a sudo passwd root. That will let you make a password for root, and afterwards you will have a normal root login. You said its a data disk. What does it do when you try to mount /dvd? (Mountpoint dvd has to exist-mkdir /dvd). MC (midnight commander) is good for looking at where a symlink currently points and editing it. Install mc if its not already there, cd to /dev, run mc and then highlight /dev/dvd and look at the bottom and see where it is pointing. If it doesnt point to the same place /dev/cdrom points to hit cnrl-x cntrl-s and you cant edit it.

The "file exists" error is my fault. In both cases reverse the /dev/cdrom and /dev/dvd so that it looks like this:

ln -s /dev/dvd /dev/cdrom

Sorry about that!

how to do this?
sk

this is the new message i am getting:


shivkumar@shivkumar-desktop:~$ sudo ln -s /dev/dvd /dev/cdrom
ln: creating symbolic link `/dev/cdrom' to `/dev/dvd': File exists
shivkumar@shivkumar-desktop:~$

installed mc, but cannot find /dev/dvd

sk

So the symlink between /dev/cdrom and /dev/dvd exists. Hmmmm....try pointing mplayer to /dev/cdrom (in its configuration options) instead of /dev/dvd. I've also had some success with pointing it to /dev/hdc (where /dev/hdc is ALSO your cdrom...)

i get the messsage failed to open://dvd
sk

can you make anything of this info : clicked on applications>debian>Apps>System>Disks Admin

right clicked the CD Rom sign and it shows samsung CDRW/DVD SM-352F
/dev/hdd

General Information

Type: CD-Rom
device: /dev/hdd
Speed: Not Available
Status: No Disc installed.

This when my dvd is installed. already downloaded W32codecs and libdvdcss2.

is there any changes i shd make in the config and if so how?
sk