topic special device /dev/cdrom does not exist -- plz help in Operating System - Linux

special device /dev/cdrom does not exist -- plz help

Maaz — Thu, 18 Nov 2004 23:48:44 GMT

[root@Linux9 root]# mount -t iso9660 /dev/cdrom /mnt/cdrom
mount: special device /dev/cdrom does not exist
[root@Linux9 root]# ls -l /dev/cd*
brw-rw---- 1 root disk 15, 0 Jan 30 2003 /dev/cdu31a
brw-rw---- 1 root disk 24, 0 Jan 30 2003 /dev/cdu535

Plz Help. whats wrong why i received the "mount: special device /dev/cdrom does not exist" error
message

Thanks to All

Regards

Re: special device /dev/cdrom does not exist -- plz help

Stuart Browne — Fri, 19 Nov 2004 00:07:07 GMT

It just means that the symbolic link to your CDROM device isn't there.

Find out which device node your CDROM is connected too (see /var/log/dmesg for details), and create the appropraite symbolic link (ln -sf /dev/ /dev/cdrom)

If you areu sing the 'ide-scsi' module(lsmod), and are using the appropraite boot-loader options, then it gets a little more complicated.

Re: special device /dev/cdrom does not exist -- plz help

twang — Fri, 19 Nov 2004 00:39:39 GMT

find out the device of cdrom device:
# dmesg |grep -i cd
or
# dmesg |grep -i rom
for example,
linux:/dev # dmesg |grep -i rom
hda: CDU5211, ATAPI CD/DVD-ROM drive
hda: ATAPI 52X CD-ROM drive, 120kB Cache
Uniform CD-ROM driver Revision: 3.12
cdrom: open failed.

then, you may make a sybolic like to the cdrom device file as follows:
# ln -s /dev/hda /dev/cdrom

Re: special device /dev/cdrom does not exist -- plz help

Ivajlo Yanakiev — Fri, 19 Nov 2004 03:09:15 GMT

If you have working CD and you know where is connect :)
you can use it:

linux IDE map:
Primary/Master = /dev/hda
Primary/Slave = /dev/hdb
Secondary/Master = /dev/hdc
Secondary/Slave = /dev/hdd

/dev/cdrom is just link

Re: special device /dev/cdrom does not exist -- plz help

Jan Sladky — Fri, 19 Nov 2004 04:19:23 GMT

hi,

/dev/cdrom is usually linked to /dev/hdc so let try mount /dev/hdc /mnt/cdrom, it should be ok.

After that create cdrom link to hdc or edit /etc/fstab and type right device file there:

/dev/hdc/ /mnt/cdrom

br Jan

Re: special device /dev/cdrom does not exist -- plz help

Maaz — Fri, 19 Nov 2004 23:50:50 GMT

Dear All, Many Thanks, for help, and even prompt/quick help.

Many Thanks Stuart ... u replied my first ... and my prblm was solved after reading ur post.

Many Thanks twang, Ivajlo Yanakiev, and Jan Sladky for help and explanations

Once Again, Thanks A Million to All.

Regards
Maaz