On Sun, Apr 25, 2010 at 7:06 PM, Andrew M.A. Cater
<amacater@galactic.demon.co.uk> wrote:
On Sun, Apr 25, 2010 at 12:11:57PM +0200, James Stuckey wrote:
> stuckey@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 <
>
amacater@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 <
lyh19901223@gmail.com> wrote:
> > >
> > > >
> > > >
> > > > On 23 April 2010 13:54, James Stuckey <
jhstuckey@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:
> > > > > stuckey@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 ?
> >
> >
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.
root@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
root@debian:/home/stuckey#
root@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.