Discussion:
Can't Mount Optical Drive
(too old to reply)
Jason Dusek
2004-07-10 17:27:43 UTC
Permalink
Hi,

I'm on a Dell Latitude D600 with a CD-RW/DVD-R. When I try to mount the
drive I get an error:

5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error

But dmesg says:

acd0: CDRW <QSI CD-RW/DVD-ROM SBW242U> at ata1-master PIO4

So although my drive is recognized correctly, it doesn't work with
FreeBSD. But it worked for building and installing FreeBSD a few days
ago, so I know the drive is functional. How do I get the drive to mount?
Does it make any difference that I am running GNOME 2.6?


I have some another disk mounting question, too. Sometimes when I try to
mount the CD drive I get an error that goes something like:

Incorrect super block

What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?

- Jason
Saint Aardvark the Carpeted
2004-07-10 17:53:32 UTC
Permalink
Post by Jason Dusek
5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error
You may want to try:

mount -t cd9660 /dev/acd0c /cdrom

or its equivalent:

mount_cd9660 /dev/acd0c /cdrom

Also, if you're trying to mount a DVD instead of a CD, you may need to
try:

mount_cd9660 /dev/cd0c /cdrom
Post by Jason Dusek
I have some another disk mounting question, too. Sometimes when I try to
Incorrect super block
What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?
The superblock is a chunk of disk that has housekeeping information
like the amount of free space, where to find free inodes, and so on.

The error can mean pretty much the same things no matter what the
medium. It might mean that you've specified the wrong filesystem --
"mount" (which defaults to FreeBSD's UFS filesystem) instead of "mount
-t cd9660", say. It might also mean that the the filesystem hasn't been
formatted yet, or (if a CD) that you've burned a coaster. Or, it might
mean that you are about to be very grateful for your carefully-followed
backup plan. :-)
--
Saint Aardvark the Carpeted
***@saintaardvarkthecarpeted.com
Because the plural of Anecdote is Myth.
Jason Dusek
2004-07-10 21:33:10 UTC
Permalink
Hi Again,

In that there must be something else wrong, because after trying a few
permutations I was unable to get the drive on my D600 to work:

1 root # mount_cd9660 /dev/acd0 /cdrom
mount_cd9660: /dev/acd0: Input/output error

2 root # mount_cd9660 /dev/acd0c /cdrom
mount_cd9660: /dev/acd0c: No such file or directory

3 root # mount_cd9660 /dev/cd0c /cdrom
mount_cd9660: /dev/cd0c: No such file or directory

4 root # mount_cd9660 /dev/cd0 /cdrom
mount_cd9660: /dev/cd0: No such file or directory

Do I need to create some directories for this to work? How will my
computer know what directories to attach the drive to?

- Jason
Post by Saint Aardvark the Carpeted
Post by Jason Dusek
5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error
mount -t cd9660 /dev/acd0c /cdrom
mount_cd9660 /dev/acd0c /cdrom
Also, if you're trying to mount a DVD instead of a CD, you may need to
mount_cd9660 /dev/cd0c /cdrom
Post by Jason Dusek
I have some another disk mounting question, too. Sometimes when I try to
Incorrect super block
What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?
The superblock is a chunk of disk that has housekeeping information
like the amount of free space, where to find free inodes, and so on.
The error can mean pretty much the same things no matter what the
medium. It might mean that you've specified the wrong filesystem --
"mount" (which defaults to FreeBSD's UFS filesystem) instead of "mount
-t cd9660", say. It might also mean that the the filesystem hasn't been
formatted yet, or (if a CD) that you've burned a coaster. Or, it might
mean that you are about to be very grateful for your carefully-followed
backup plan. :-)
epilogue
2004-07-12 03:30:41 UTC
Permalink
On Sat, 10 Jul 2004 16:29:59 -0500
Post by Jason Dusek
Hi Again,
In that there must be something else wrong, because after trying a few
1 root # mount_cd9660 /dev/acd0 /cdrom
mount_cd9660: /dev/acd0: Input/output error
2 root # mount_cd9660 /dev/acd0c /cdrom
mount_cd9660: /dev/acd0c: No such file or directory
3 root # mount_cd9660 /dev/cd0c /cdrom
mount_cd9660: /dev/cd0c: No such file or directory
4 root # mount_cd9660 /dev/cd0 /cdrom
mount_cd9660: /dev/cd0: No such file or directory
Do I need to create some directories for this to work? How will my
computer know what directories to attach the drive to?
hello jason,

if you're trying to mount a 'blank' cd, i do not believe that it will work,
because there is no 'filesystem' to mount. please note that the same is
true of music cds. they have no 'filesystem' in the unix sense and cannot
be mounted. both, however, can be manipulated by programs (ex. disc
burners or music players/rippers).

if you're doing something other than what i suggest above and are still not
able to mount your 'filesystem' disc, please let us know what type of disc
it is and what is on it.

hope that this helps.

epi
Post by Jason Dusek
- Jason
Post by Saint Aardvark the Carpeted
Post by Jason Dusek
5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error
mount -t cd9660 /dev/acd0c /cdrom
mount_cd9660 /dev/acd0c /cdrom
Also, if you're trying to mount a DVD instead of a CD, you may need to
mount_cd9660 /dev/cd0c /cdrom
Post by Jason Dusek
I have some another disk mounting question, too. Sometimes when I try
Incorrect super block
What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?
The superblock is a chunk of disk that has housekeeping information
like the amount of free space, where to find free inodes, and so on.
The error can mean pretty much the same things no matter what the
medium. It might mean that you've specified the wrong filesystem --
"mount" (which defaults to FreeBSD's UFS filesystem) instead of "mount
-t cd9660", say. It might also mean that the the filesystem hasn't been
formatted yet, or (if a CD) that you've burned a coaster. Or, it might
mean that you are about to be very grateful for your carefully-followed
backup plan. :-)
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to
Jason Dusek
2004-07-12 04:35:28 UTC
Permalink
It turns out that I can mount data CDs - but I was trying to mount an unburned
CD. So I guess it's ironed out. The next thing in line - burning CDs - is not
likely to come up for another day or two.

- Jason
Post by epilogue
On Sat, 10 Jul 2004 16:29:59 -0500
Post by Jason Dusek
Hi Again,
In that there must be something else wrong, because after trying a few
1 root # mount_cd9660 /dev/acd0 /cdrom
mount_cd9660: /dev/acd0: Input/output error
2 root # mount_cd9660 /dev/acd0c /cdrom
mount_cd9660: /dev/acd0c: No such file or directory
3 root # mount_cd9660 /dev/cd0c /cdrom
mount_cd9660: /dev/cd0c: No such file or directory
4 root # mount_cd9660 /dev/cd0 /cdrom
mount_cd9660: /dev/cd0: No such file or directory
Do I need to create some directories for this to work? How will my
computer know what directories to attach the drive to?
hello jason,
if you're trying to mount a 'blank' cd, i do not believe that it will work,
because there is no 'filesystem' to mount. please note that the same is
true of music cds. they have no 'filesystem' in the unix sense and cannot
be mounted. both, however, can be manipulated by programs (ex. disc
burners or music players/rippers).
if you're doing something other than what i suggest above and are still not
able to mount your 'filesystem' disc, please let us know what type of disc
it is and what is on it.
hope that this helps.
epi
Post by Jason Dusek
- Jason
Post by Saint Aardvark the Carpeted
Post by Jason Dusek
5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error
mount -t cd9660 /dev/acd0c /cdrom
mount_cd9660 /dev/acd0c /cdrom
Also, if you're trying to mount a DVD instead of a CD, you may need to
mount_cd9660 /dev/cd0c /cdrom
Post by Jason Dusek
I have some another disk mounting question, too. Sometimes when I try
Incorrect super block
What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?
The superblock is a chunk of disk that has housekeeping information
like the amount of free space, where to find free inodes, and so on.
The error can mean pretty much the same things no matter what the
medium. It might mean that you've specified the wrong filesystem --
"mount" (which defaults to FreeBSD's UFS filesystem) instead of "mount
-t cd9660", say. It might also mean that the the filesystem hasn't been
formatted yet, or (if a CD) that you've burned a coaster. Or, it might
mean that you are about to be very grateful for your carefully-followed
backup plan. :-)
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to
epilogue
2004-07-12 05:19:31 UTC
Permalink
On Sun, 11 Jul 2004 23:36:44 -0500
Post by Jason Dusek
It turns out that I can mount data CDs - but I was trying to mount an
unburned CD. So I guess it's ironed out. The next thing in line - burning
CDs - is not likely to come up for another day or two.
as you certainly won't be the first person to ask about cd-burning, the
archives will probably already contain the answers to any of the questions
you are likely to have. be sure to check them out. they are kept on hand
for several reasons, not the least of which is the invaluable resource they
provide for researching and solving problems, both esoteric and common. :)
Post by Jason Dusek
- Jason
Post by epilogue
On Sat, 10 Jul 2004 16:29:59 -0500
Post by Jason Dusek
Hi Again,
In that there must be something else wrong, because after trying a few
1 root # mount_cd9660 /dev/acd0 /cdrom
mount_cd9660: /dev/acd0: Input/output error
2 root # mount_cd9660 /dev/acd0c /cdrom
mount_cd9660: /dev/acd0c: No such file or directory
3 root # mount_cd9660 /dev/cd0c /cdrom
mount_cd9660: /dev/cd0c: No such file or directory
4 root # mount_cd9660 /dev/cd0 /cdrom
mount_cd9660: /dev/cd0: No such file or directory
Do I need to create some directories for this to work? How will my
computer know what directories to attach the drive to?
hello jason,
if you're trying to mount a 'blank' cd, i do not believe that it will
work, because there is no 'filesystem' to mount. please note that the
same is true of music cds. they have no 'filesystem' in the unix sense
and cannot be mounted. both, however, can be manipulated by programs
(ex. disc burners or music players/rippers).
if you're doing something other than what i suggest above and are still
not able to mount your 'filesystem' disc, please let us know what type
of disc it is and what is on it.
hope that this helps.
epi
Post by Jason Dusek
- Jason
Post by Saint Aardvark the Carpeted
Post by Jason Dusek
5 # mount /dev/acd0 /cdrom
mount: /dev/acd0: Input/output error
mount -t cd9660 /dev/acd0c /cdrom
mount_cd9660 /dev/acd0c /cdrom
Also, if you're trying to mount a DVD instead of a CD, you may need to
mount_cd9660 /dev/cd0c /cdrom
Post by Jason Dusek
I have some another disk mounting question, too. Sometimes when I try
Incorrect super block
What does this error mean? What does it mean in reference to a hard
drive? What does it mean in reference to a CD drive?
The superblock is a chunk of disk that has housekeeping information
like the amount of free space, where to find free inodes, and so on.
The error can mean pretty much the same things no matter what the
medium. It might mean that you've specified the wrong filesystem --
"mount" (which defaults to FreeBSD's UFS filesystem) instead of "mount
-t cd9660", say. It might also mean that the the filesystem hasn't
been>>formatted yet, or (if a CD) that you've burned a coaster. Or, it
might>>mean that you are about to be very grateful for your
carefully-followed>>backup plan. :-)
Post by Jason Dusek
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to
Loading...