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#1 2004-04-03 05:02:36

yowwww
Member
Registered: 2003-09-04
Posts: 112

mounting a dvd-r+ disc

Ive spent  a fair bit of time trying to figure this out.
The main problems are: hardly anyone has a dvd-rw drive and there is jack squat on it available on any search engine I have tried.

Bottom line - I cant mount it. It is a cd with mp3's on it and I even booted up knoppix and mounted the disc and it worked fine. I played the mp3's thru xmms to make sure.

My setup is a dvd rom drive as sec master and dvdrw drive as sec slave. I have tried this in various window managers / desktop environments including flux, E, kde and gnome and none work.

I have tried multiple fstab entries and mount commands and nothing has worked but at least I can see the light going on so I know it finds the correct drive device. I usually get a superblock or cant find medium error. This disc has been tested on another computer (windfroze on it) and it worked fine.

Also, how can I allow regular users to mount? This has been bothering me for a while and since I'm posting I thought I'd ask.

Thanks for any help on this. I want to get this dvdrw drive working.

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#2 2004-04-03 05:56:01

aCoder
Member
From: Medina, OH
Registered: 2004-03-07
Posts: 359
Website

Re: mounting a dvd-r+ disc

I'm not sure about mounting that disc, but to let regular users mount anything, you either need to suid (chmod +s) /sbin/mount and /sbin/umount, add user to your fstab options (this implies noexec though!), su to root to do it, or use sudo.


If you develop an ear for sounds that are musical it is like developing an ego. You begin to refuse sounds that are not musical and that way cut yourself off from a good deal of experience.
  - John Cage

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#3 2004-04-03 13:56:38

yowwww
Member
Registered: 2003-09-04
Posts: 112

Re: mounting a dvd-r+ disc

thanks aCoder, I've been wondering about that for a while.

anyone for the other mounting issue?

I've talked to some more ppl about it and they say they had the exact same problem and then eventually it just went away? However, they have no idea what they did (if anything) for it to work. This is very perplexing.

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#4 2004-04-03 19:13:12

Xentac
Forum Fellow
From: Victoria, BC
Registered: 2003-01-17
Posts: 1,797
Website

Re: mounting a dvd-r+ disc

When mounting a regular cd, are you trying to mount the iso9660 filesystem?  Cause that's a regular cd, it's not udf.


I have discovered that all of mans unhappiness derives from only one source, not being able to sit quietly in a room
- Blaise Pascal

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#5 2004-04-03 22:15:13

yowwww
Member
Registered: 2003-09-04
Posts: 112

Re: mounting a dvd-r+ disc

so far ive tried udf, iso9660 and auto in my fstab.

I also copied the fstab entry from knoppix that did work into my Arch install and it didn't work.

Ive tried mounting in the terminal with:

mount -t udf /dev/sr0 /mnt/dvdrw
mount -t iso9660 /dev/sr0  /mnt/dvdrw
mount -t udf /dev/cdroms/cdrom1  /mnt/dvdrw
mount -t iso9660 /dev/cdroms/cdrom1  /mnt/dvdrw
mount  /mnt/dvdrw

none of those work for me.

Are there problems in general with mounting anything on a secondary slave drive? I remember not being able to mount anything on hdd before either. I am using scsi emulation on it as well if that is relevant. Nonetheless, the disc wont mount on hdc either which is a dvd rom and is not using scsi emulation at all.

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#6 2004-04-04 01:26:05

aCoder
Member
From: Medina, OH
Registered: 2004-03-07
Posts: 359
Website

Re: mounting a dvd-r+ disc

It could be a driver bug with the IDE controller you're using, or ide-scsi emulation may not work right with that particular drive, but it's probably something entirely different that no one would ever think of.

Personally, I don't have a /dev/hdd anymore, since I got mad at my DVD-ROM when I was trying out Windows and didn't want to pay for a DVD player, and it found a new home, in the street, in many pieces...  I don't remember having any problems mounting anything on it though.


If you develop an ear for sounds that are musical it is like developing an ego. You begin to refuse sounds that are not musical and that way cut yourself off from a good deal of experience.
  - John Cage

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#7 2004-04-04 02:56:48

yowwww
Member
Registered: 2003-09-04
Posts: 112

Re: mounting a dvd-r+ disc

yeah, thats what im thinking too.

I do use a new kernel so it might be that.

if anyone has any further ideas, feel free to share big_smile

i'll prob try 2.6.5 when it is final.

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#8 2005-06-15 16:42:03

EmbraceThePenguin
Member
From: New Mexico, USA
Registered: 2004-08-09
Posts: 197

Re: mounting a dvd-r+ disc

Not to bring back an old thread, but I have just purchased a DVD +/- R and for some reason, I can mount the -r disk, but I cant read it. Here is the output of ls -la:

s -la
total 14
drwxr-xr-x   4 root       root       4096 2005-06-12 13:10 .
drwxr-xr-x  19 root       root       4096 2005-06-13 13:40 ..
drwxr-xr-x   2 root       root       4096 2005-06-12 13:10 cd
dr--r--r--   3 4294967295 4294967295   88 2004-08-18 14:47 dvd

As you can see, the permissions are all borked up..

Here is my fstab entry for the drive:

/dev/cdroms/cdrom0     /mnt/dvd udf,iso9660 ro,user,noauto,unhide  0      0

Is there a way to read this -r disks? I can write to and read from a +r just fine.

Thanks!!!

Joe

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#9 2005-06-16 05:56:51

scarecrow
Member
From: Greece
Registered: 2004-11-18
Posts: 714

Re: mounting a dvd-r+ disc

I see you are still using the old devfs device nodes... You'd better switch to udev ASAP, devfs is to be removed from the kernels very soon.
If you are running message bus and hal, simply remove the above line completely (the floppy one as well). fstab-sync will autocreate a line whenever a disk is inserted in the drive.
Your problem is probably the "iso9660 udf" argument, setting it to "auto" should be better.
My fstab-sync entry is like
/dev/hda /media/dvdwriter auto user,exec,noauto,comment=managed 0 0


Microshaft delenda est

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#10 2005-06-16 06:07:28

EmbraceThePenguin
Member
From: New Mexico, USA
Registered: 2004-08-09
Posts: 197

Re: mounting a dvd-r+ disc

I saw that they were changing to the new dev file system. I sure hope it doesnt break any of my deviced (Joystick, Camera, etc.)

Where could I go to read up on it?

Thanks!!!

Joe

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#11 2005-06-16 06:30:32

EmbraceThePenguin
Member
From: New Mexico, USA
Registered: 2004-08-09
Posts: 197

Re: mounting a dvd-r+ disc

BTW, thanks for pointing out the change in the fstab. Changing it to auto worked smile

Thanks!!!

Joe

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#12 2005-06-25 08:25:21

scarecrow
Member
From: Greece
Registered: 2004-11-18
Posts: 714

Re: mounting a dvd-r+ disc

The wiki mini-howto about udev is good: http://wiki2.archlinux.org/index.php/UdevHowTo
You can read a lot more about it, if needed, at the Gentoo wiki.


Microshaft delenda est

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#13 2005-07-18 07:20:09

cs25x
Member
Registered: 2004-05-04
Posts: 150

Re: mounting a dvd-r+ disc

I know this is a month late, but your problem is that you are trying to mount to the thing in your /etc/fstab which is a DVD drive. That barfs if you dont give it udf media. I assume mkisofs was used for burning the mp3 disk, either directly or indirectly. The solution is to create a link to the actual /dev/drive and create an entry for this drive in your /etc/fstab.

/dev/cdrom /mnt/cdrom iso9660 ro,users,noauto,unhide 0 0

should fix things, then you use cdrom for things that are not DVD or udf formatted media. IIRC, a link from /mnt/cdrom to /mnt/dvd will not work because that cdrom will believe is a dvd drive.


--(*(cs25x--));

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