adityasharma

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Hi all

please help me in mounting dvd
only some dvd are not mounting below are the error messages that i am getting

[root@localhost ~]# mount /dev/dvd /media/dvd/ -t iso9660
mount: block device /dev/dvd is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/dvd,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

[root@localhost ~]# dmesg | tail
hdf: rw=0, want=68, limit=4
isofs_fill_super: bread failed, dev=hdf, iso_blknum=16, block=16
hfs: unable to find HFS+ superblock
attempt to access beyond end of device
hdf: rw=0, want=68, limit=4
isofs_fill_super: bread failed, dev=hdf, iso_blknum=16, block=16
hfs: unable to find HFS+ superblock
attempt to access beyond end of device
hdf: rw=0, want=68, limit=4
isofs_fill_super: bread failed, dev=hdf, iso_blknum=16, block=16
[root@localhost ~]# cat /etc/fstab
LABEL=/1 / ext3 defaults 1 1
LABEL=/boot1 /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
/dev/sda5 /vmware ext3 defaults 0 0
LABEL=SWAP-sda3 swap swap defaults 0 0

adityasharma

any help

vonbiber

have you tried

mount /dev/dvd /media/dvd

?
(just leave out the '-t iso9660' option)

adityasharma

yes that was the first thing

get the below error

[root@localhost ~]# mount /dev/dvd /media/dvd
mount: block device /dev/dvd is write-protected, mounting read-only
mount: you must specify the filesystem type

catkin

Hello adityasharma

Is this happening on RHEL as per your profile or some other distribution?

You could try explicitly using the mount command's auto option.

I have solved similar errors (on ubuntu 8.04) by cleaning the DVD, by rebooting, by putting the DVD in another drive, by disabling automounting, by unmounting the DVD from a VirtualBox virtual machine ...

Best

Charles

adityasharma

please explain this

i do have virtula machine on my computer but the are alos unabel to mount the Dvd
also teh DVD is clean

its happening with some DVD's only

adityasharma

any help

Ruler2112

Possibly there's some other file system on the DVD? Are these video DVDs, data, or both? If data and they're ones somebody burnt, perhaps they used ntfs, ext3, reiserfs, or something else for an unknown reason?

Also, are the disks recognized by another system? Maybe your optical drive is dirty or starting to fail???

vonbiber

is your dvd a data dvd?
try to mount another dvd or cd
if you can't with those either
you can try to boot with a linux live system
from a usb drive and try to mount the dvd.

slax is easy to setup for a usb boot:
http://www.slax.org/

if it mounts ok, then the problem is the linux system
on your hard drive