Mount CD-ROM Problem

Druid · #1 5th April 2005, 03:06 PM

While I had no problems with my dvd-rom, suddenly it cannot be ejected(eject: unable to open `/dev/hdc'). But after the error message it ejected normally *by pressing the eject button on the device). Why this is happens ?

raghavendra · #2 5th April 2005, 03:27 PM

Hi
Did you try giving

Code:

eject /dev/hdc

at the command prompt

Druid · #3 5th April 2005, 03:32 PM

Yup
eject: unable to open `/dev/hdc'

the same error message.
While I am trying to open the CD-ROm (only for the first time) it says sth about mount hdc or media/cdrom is busy... Something like that. Could you help a newbie, please ?

Druid · #4 5th April 2005, 03:45 PM

Guys look! I tried to eject as root user and the CD-Rom ejected without any error message. It is possible that must be a wrong configuration in permissions. Because I am newbie what I am supposed to do in order to eject my cd-rom as normal user ?

Please please please, help me....

Druid · #5 5th April 2005, 05:23 PM

An other thing worth mentioning is that when I log in as normal user, I type "umount /dev/hdc" and then there is no problem because there is no cd-rom icon on my desktop. I am confused. the problem is that: I cannot reject my cd-rom as normal user ( I have to umount it first and then it reject works).

PS: Sorry for not editing the last post

raghavendra · #6 5th April 2005, 05:28 PM

Hi
This might help.......But I am not sure
http://www.fedoraforum.org/forum/sho...mount+problems

Druid · #7 5th April 2005, 08:40 PM

I really appreciate your try to help me but the problem did not solved. I am going to ask you a few questions, so please answer as fast as possible.

The plot: Supposing that you want to listen to music from a CD. You press the eject button which is located on the front panel of your CD-ROM device.Place there your audio CD and then press again the eject the button in order to be inserted. As far as I know, FC3 do not support Autorun Operation, so you have to open the terminal and type as NORMAL USER:
--> mount /dev/hdc <-- After this you will see a cd-rom icon on your desktop. Then you click on it and then listen to music as much time as you want. After period o time, let's suppose that you got bored listening the same track and you want to play another CD. Open the terminal and type as NORMAL USER:
umount /dev/hdc . After this, the CD-ROM icon has been disappeared and you press the eject button from your CD-ROM device. And so on ....

AS NORMAL USER
1)Are you doing the same thing all the time?
2)You have to umount the CD-ROM and then eject it ?
3)If you left click on the CD-ROM icon and press eject ? (Produces an error on me)
4)Is the umount /dev/hdc and then press eject /dev/hdc workd ? (Error on me on eject...eject: unable to open `/dev/hdc' )

Thank you very much
Druid

raghavendra · #8 6th April 2005, 03:02 AM

Hi
I do all the mounting and unmounting as a root user........maybe it has become a practice for me. First I give
eject /dev/hdc
insert the CD
eject -t /dev/hdc
mount /dev/hdc /media/cdrom
then start playing the CD-ROM
after that
umount /dev/hdc
eject /dev/hdc
.........repeat the steps if I want to use more CD's.

NOTE: If you are using a KDE there is a small bug. the link to the CD-ROM is given as /mnt/cdrom wherein the actual folder is at /media/cdrom...........so you have to either edit the link or create a new folder cdrom in /mnt and access the CDs from there.

Vinneh · #9 6th April 2005, 03:53 AM

I thought music cd's weren't mounted anyway..?

Clunixchit · #10 6th April 2005, 09:59 AM

I had a similiar problem.
its now solved and ive written a HowTo for it
http://www.chitlesh.cjb.net/disk.html

Druid · #11 6th April 2005, 11:56 AM

Well guys I think that this is only for recortable. I am using an DVD-ROM not a rewriterable one. I am saying that due to chmod. I think 777 chmod is used for free previledges and free permissions by anyone (either root, either Group). I am using 555. I am gonna change it to 777 (who knows) as soon as I come back home.

To solve the disk error of audio cds after fresh FC3 install as root:

$ cd /dev

$ ln -s /dev/hdc /dev/cdrom

$ chmod 777 cdrom

If ejecting becomes impossible even as root, try:

$ eject /media/cdrecorder

That is $ ln -s /dev/hdc /dev/cdrom ??? Is it wrong ? I think that is only /dev/hdc and /media/cdrom ...

Ok thanx guys

Clunixchit · #12 6th April 2005, 01:16 PM

Quote:

Originally Posted by Druid

Well guys I think that this is only for recortable. I am using an DVD-ROM not a rewriterable one. I am saying that due to chmod. I think 777 chmod is used for free previledges and free permissions by anyone (either root, either Group). I am using 555. I am gonna change it to 777 (who knows) as soon as I come back home.

To solve the disk error of audio cds after fresh FC3 install as root:

$ cd /dev

$ ln -s /dev/hdc /dev/cdrom

$ chmod 777 cdrom

If ejecting becomes impossible even as root, try:

$ eject /media/cdrecorder

That is $ ln -s /dev/hdc /dev/cdrom ??? Is it wrong ? I think that is only /dev/hdc and /media/cdrom ...

Ok thanx guys

as you have copied from My site,
try

Code:

ln -s /dev/hdc /dev/cdrom
chmod 777 cdrom

Druid · #13 6th April 2005, 02:36 PM

The problem finaly solved. I Have to mention some changes. As you already know FC3 automatically mount /dev/hdc to the /media/cdrom . So if you have the same problem like me just do the following:

Log in as ROOT user to have full access as administrator. Open the Terminal and type:
ls -s /dev/hdc /media/cdrom
Then press Enter button
Type -> chmod 777 /dev/hdc
Then press Enter Button

And that's it. You can eject your CD-ROM without troubleshooting problems and without need to unmount it first.

I want to express my thanks to everyone who help me and I also think that this forum ... rocks!

Clunixchit · #14 6th April 2005, 04:22 PM

Quote:

Originally Posted by Druid

The problem finaly solved. I Have to mention some changes. As you already know FC3 automatically mount /dev/hdc to the /media/cdrom . So if you have the same problem like me just do the following:

Log in as ROOT user to have full access as administrator. Open the Terminal and type:
ls -s /dev/hdc /media/cdrom
Then press Enter button
Type -> chmod 777 /dev/hdc
Then press Enter Button

And that's it. You can eject your CD-ROM without troubleshooting problems and without need to unmount it first.

I want to express my thanks to everyone who help me and I also think that this forum ... rocks!

sounds that my post worked and my howto, actually i wish to share 2 stuffs

Code:

ls -s /dev/hdc  /media/cdrom

as Druid suggested is wrong
instead use

Code:

ln -s /dev/hdc  /media/cdrom

in brief,
ln = creation of symbolics
ls = dir in msdos