LinuxQuestions.org - can't mount /media/cdrom0

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can't mount /media/cdrom0

i burned a data DVD in windows (still trying to figure out a way to back up my bloody DVD for my wife) and the data is there, but under linux i can not mount it.

Code:

cdrom: This disc doesn't have any tracks I recognize!

attempt to access beyond end of device

hda: rw=0, want=68, limit=4

isofs_fill_super: bread failed, dev=hda, iso_blknum=16, block=16

attempt to access beyond end of device

hda: rw=0, want=68, limit=4

isofs_fill_super: bread failed, dev=hda, iso_blknum=16, block=16

attempt to access beyond end of device

hda: rw=0, want=68, limit=4

isofs_fill_super: bread failed, dev=hda, iso_blknum=16, block=16

cdrom: This disc doesn't have any tracks I recognize!

attempt to access beyond end of device

hda: rw=0, want=68, limit=4

isofs_fill_super: bread failed, dev=hda, iso_blknum=16, block=16

does not matter if i try to mount it as user or with sudo. still same error in dmesg:

Code:

cat /etc/fstab

# /etc/fstab: static file system information.

#

# <file system> <mount point>  <type>  <options>      <dump>  <pass>

proc            /proc          proc    defaults        0      0

/dev/sda3      /              ext3    defaults,errors=remount-ro 0      1

/dev/sda1      /boot          ext3    defaults        0      2

/dev/sda4      /home          ext3    defaults        0      2

/dev/sda5      none            swap    sw              0      0

/dev/hda        /media/cdrom0  udf,iso9660 user,noauto    0      0

/dev/scd0      /media/cdrom1  udf,iso9660 user,noauto    0      0

/dev/fd0        /media/floppy0  auto    rw,user,noauto  0      0

is there something elese my fstab should be listing for my DVD burner?

[code]

Does it reads under winblows?

yup, no problem there.

the reason i burned the raw data out to the DVDs was in hopes of putting them on my Linux HDD so i could mkisofs (or what ever the exact command is, was going to google for that next) so i could hope to burn the ISO out to a dual layer DVD in hopes of it working on the set top.

there is no way to create an ISO image in windows from files that i know of.

Heeey...stop. So you just want to move this iso to DL DVD? You don't need to access individual files then (if it's DL DVD+-RW). Linux kernel threats it as a rewritable medium with random access so you can (first) copy entire DVD data to HD and (second) copy it back to DL DVD+-RW. The first may be done with 'dd if=/dev/your-dvd-drive of=some-temporary-file,say,-/tmp/dvd0'. If there are read errors (in the middle of DVD, not in the end), add 'conv=noerror' to the command. For second do the same, just reverse if= and of= filenames.

Btw, I'm sure there is a mkisofs 4 winblows on the Internet. Cause it's OS-independent

Quote:

Originally Posted by GNUlancer

Btw, I'm sure there is a mkisofs 4 winblows on the Internet. Cause it's OS-independent

only with cgwyn or what ever that program is called.

still does not resolve my issue with being unable to mount a standard data DVD created in nero:

Code:

sudo mount /media/cdrom0

Password:

mount: block device /dev/hda is write-protected, mounting read-only

mount: wrong fs type, bad option, bad superblock on /dev/hda,

      missing codepage or other error

      In some cases useful info is found in syslog - try

      dmesg | tail  or so



ray@debian64:~$ dmesg | tail

Linux agpgart interface v0.101 (c) Dave Jones

nvidia: module license 'NVIDIA' taints kernel.

PCI: Enabling device 0000:02:00.0 (0000 -> 0003)

ACPI: PCI Interrupt 0000:02:00.0[A] -> Link [APC4] -> GSI 19 (level, low) -> IRQ 58

PCI: Setting latency timer of device 0000:02:00.0 to 64

ACPI: PCI Interrupt Link [APC3] enabled at IRQ 18

ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [APC3] -> GSI 18 (level, low) -> IRQ 82

PCI: Setting latency timer of device 0000:01:00.0 to 64

NVRM: loading NVIDIA UNIX x86 Kernel Module  1.0-9746  Fri Dec 15 09:54:45 PST 2006

Unable to identify CD-ROM format.

WTF is this junk? it is NOT a CD, it is a DVD, and yes if i put in a movie DVD it plays and even auto mounts with zero problems.

the answer was to change from udf,iso9660 to auto in my fstab. all fixed now.