On Sun, Apr 25, 2010 at 7:06 PM, Andrew M.A. Cater <
amaca...@galactic.demon.co.uk> wrote:
> On Sun, Apr 25, 2010 at 12:11:57PM +0200, James Stuckey wrote:
> > stuc...@debian:~$ cat /etc/fstab
> > # /etc/fstab: static file system information.
> > #
> > # Use 'vol_id --uuid' to print the universally unique identifier for a
> > # device; this may be used with UUID= as a more robust way to name
> devices
> > # that works even if disks are added and removed. See fstab(5).
> > #
> > # <file system> <mount point> <type> <options> <dump> <pass>
> > proc /proc proc defaults 0 0
> > # / was on /dev/sda1 during installation
> > UUID=cca7add1-981f-469f-9285-ae17722e24bd / ext3
> > errors=remount-ro 0 1
> > # swap was on /dev/sda5 during installation
> > UUID=334c0de5-c6b2-4990-a49b-83f4dd0c0a0d none swap
> > sw 0 0
> > /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto 0 0
> > /dev/fd0 /media/floppy0 auto rw,user,noauto 0 0
> >
> > By the way, how do I reply to the list on gmail?
> >
> >
> > On Sun, Apr 25, 2010 at 10:55 AM, Andrew M.A. Cater <
> > amaca...@galactic.demon.co.uk> wrote:
> >
> > > On Fri, Apr 23, 2010 at 11:21:33AM +0200, James Stuckey wrote:
> > > > That worked, thanks!
> > > >
> > > > If one has to do this every time, why is it that these options aren't
> > > listed
> > > > in /etc/fstab?
> > > >
> > > > On Fri, Apr 23, 2010 at 9:27 AM, 刘宇辉 <lyh19901...@gmail.com> wrote:
> > > >
> > > > >
> > > > >
> > > > > On 23 April 2010 13:54, James Stuckey <jhstuc...@gmail.com> wrote:
> > > > > >
> > > > > > I'm not able to read DVDs in squeeze. I burned this disc on the
> same
> > > > > > drive in squeeze. Thereafter it worked fine until a week or so
> ago
> > > > > > (the disc is less than a month old). I tested the disc last week
> on a
> > > > > > windoze and mac osx and it worked without a problem.
> > > > > >
> > > > > > When I try to mount the cd/dvd rom drive:
> > > > > > stuc...@debian:~$ mount /dev/scd0
> > > > > > mount: block device /dev/sr0 is write-protected, mounting
> read-only
> > > > > > mount: wrong fs type, bad option, bad superblock on /dev/sr0,
> > > > >
> > > > > try the whole options and arguments
> > > > > mount -o loop -t iso9660 /dev/scd0 /mnt
> > > > >
> > > > >
> > >
> > > mount /cdrom usually works - what does your fstab say for /dev/sr0 ?
> > >
> > >
> If you look at the /etc/fstab -
>
> You have something that will read CD (iso9660) and DVD (udf) format for
> a device mounted at /media/cdrom0 in this case.
>
> Gnome automount daemon or equivalent would find it there and offer to
> open it for you.
>
> In root ( /)
> ============
>
> In /, you may have a symlink which points cdrom -> /media/cdrom
>
> Further down in the filesystem, under /dev, udev or its equivalent
> normally points an alias to the same physical device during the
> installation process.
>
> In /dev
> ========
> In my case /dev/hda is the physical device, so in /dev, cdrom is linked
> to hda as is cdrw - all pointing back ot /dev/hda
>
> ls -al cdrom gives
>
> cdrom -> hda
>
> Same for DVD. [dvd, dvdrw]
>
> If you want to mount something temporarily e.g. to copy something off an
> .iso image (it's also worth looking at and learning how to loop mount an
> .iso image), something like the following as root where /tmp/tempcd is a
> temporary mountpoint you'll remove later.
>
> mkdir /tmp/tempcd
>
> mount -t iso9660 /dev/hda /tmp/tempcd
>
> cp /tmp/tempcd/* /home/<username/
>
> so the second line is the equivalent of the mount command you normally
> have in your /etc/fstab
>
> Reply to list on gmail - add as a secondary addressee?
> HTH,
>
> AndyC
>
>
I'm not using a DE.
r...@debian:/home/stuckey# mount -t iso9660 /dev/scd0 /media/cdrom0/
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
r...@debian:/home/stuckey#
r...@debian:/dev# ls -al cdrom
lrwxrwxrwx 1 root root 3 2010-04-25 20:05 cdrom -> sr0
I don't know but this might be relevant:
[43045.166624] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
[43045.166629] sr 2:0:0:0: [sr0] Sense Key : Illegal Request [current]
[43045.166633] sr 2:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[43045.166638] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 40
00
[43045.166646] end_request: I/O error, dev sr0, sector 0
[43045.166649] Buffer I/O error on device sr0, logical block 0
[43045.166653] Buffer I/O error on device sr0, logical block 1
[43045.166656] Buffer I/O error on device sr0, logical block 2
[43045.166659] Buffer I/O error on device sr0, logical block 3
[43045.166661] Buffer I/O error on device sr0, logical block 4
[43045.166664] Buffer I/O error on device sr0, logical block 5
[43045.166666] Buffer I/O error on device sr0, logical block 6
[43045.166669] Buffer I/O error on device sr0, logical block 7
[43045.166671] Buffer I/O error on device sr0, logical block 8
[43045.166674] Buffer I/O error on device sr0, logical block 9
[43045.169471] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
[43045.169474] sr 2:0:0:0: [sr0] Sense Key : Illegal Request [current]
[43045.169476] sr 2:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[43045.169479] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02
00
[43045.169483] end_request: I/O error, dev sr0, sector 0
[43045.237078] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
[43045.237082] sr 2:0:0:0: [sr0] Sense Key : Illegal Request [current]
[43045.237085] sr 2:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[43045.237089] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02
00
[43045.237096] end_request: I/O error, dev sr0, sector 0
[43045.237943] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
[43045.237946] sr 2:0:0:0: [sr0] Sense Key : Illegal Request [current]
[43045.237949] sr 2:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[43045.237953] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02
00
[43045.237960] end_request: I/O error, dev sr0, sector 0
[43094.764257] sr 2:0:0:0: [sr0] Result: hostbyte=DID_OK
driverbyte=DRIVER_SENSE
[43094.764262] sr 2:0:0:0: [sr0] Sense Key : Illegal Request [current]
[43094.764266] sr 2:0:0:0: [sr0] Add. Sense: Illegal mode for this track
[43094.764271] sr 2:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 10 00 00 01
00
[43094.764279] end_request: I/O error, dev sr0, sector 64
[43094.764353] isofs_fill_super: bread failed, dev=sr0, iso_blknum=16,
block=16
I always see that in dmesg when I insert a CD/DVD.
