Did you put any disc into your hdc drive?

--
@Copyleft 200X http://www.hutuworm.org


"Fatos Berisha" ????
news:j2Scc.32763$Id.26149@news-binary.blueyonder.co.uk...
> Hiya,
>
> I presume that this is the archetypal newbie problem, so no need to
> inform you of my level of expertise. I've just installed Rehhat 9 on my
> laptop and my CD-RW/DVD-ROM drive fails to mount, either on start-up or
> using the mount command (mount /dev/cdrom /mnt/cdrom), that actually
> yields the "not a valid block device" error message. Mounting /dev/hdc
> does the same. All these files exist in their respective directories.
>
> Here's the output from my /etc/fstab, /etc/mtab and /proc/mounts:
>
> [root@FB_LAPTOP cyberisha]# cat /etc/fstab
> LABEL=/ / ext3 defaults 1 1
> LABEL=/boot /boot ext3 defaults 1 2
> none /dev/pts devpts gid=5,mode=620 0 0
> none /proc proc defaults 0 0
> none /dev/shm tmpfs defaults 0 0
> /dev/hda8 swap swap defaults 0 0
> /dev/cdrom /mnt/cdrom udf,iso9660 noauto,owner,kudzu,user,ro 0 0
> /dev/hda2 /mnt/windows ntfs ro,umask=0222 0 0
> /dev/hda5 /mnt/mydocs ntfs ro,umask=0222 0 0
>
> (I do have a /etc/fstab.REVOKE file present too, but it's empty.)
>
> [root@FB_LAPTOP cyberisha]# cat /etc/mtab
> /dev/hda7 / ext3 rw 0 0
> none /proc proc rw 0 0
> usbdevfs /proc/bus/usb usbdevfs rw 0 0
> /dev/hda6 /boot ext3 rw 0 0
> none /dev/pts devpts rw,gid=5,mode=620 0 0
> none /dev/shm tmpfs rw 0 0
> /dev/hda2 /mnt/windows ntfs ro,umask=0222 0 0
> /dev/hda5 /mnt/mydocs ntfs ro,umask=0222 0 0
>
> [root@FB_LAPTOP cyberisha]# cat /proc/mounts
> rootfs / rootfs rw 0 0
> /dev/root / ext3 rw 0 0
> /proc /proc proc rw 0 0
> usbdevfs /proc/bus/usb usbdevfs rw 0 0
> /dev/hda6 /boot ext3 rw 0 0
> none /dev/pts devpts rw 0 0
> none /dev/shm tmpfs rw 0 0
> /dev/hda2 /mnt/windows ntfs ro 0 0
> /dev/hda5 /mnt/mydocs ntfs ro 0 0
>
> The dmesg command does show that /dev/hdc is correct:
>
> hdc: QSI CD-RW/DVD-ROM SBW-241, ATAPI CD/DVD-ROM drive
>
> So I am stumped! I hope someone can help...
>
> Thanks a million in advance,
>
> c.
>
> P.S. And yes, my /dev/cdrom DOES point to /dev/hdc, ...

On Thu, 8 Apr 2004 23:05:02 +0800, "hutuworm"
wrote:

>Did you put any disc into your hdc drive?

I think leaving out the disk tends to result in the message "mount: No
medium found", rather than "not a valid block device".

On Wed, 07 Apr 2004 12:59:11 +0100, Fatos Berisha
wrote:

>[...]
>P.S. And yes, my /dev/cdrom DOES point to /dev/hdc, ...

Have you tried it both with and without using SCSI emulation?

Mark Nagy writes:
>On Wed, 07 Apr 2004 12:59:11 +0100, Fatos Berisha
>wrote:
>
>>[...]
>>P.S. And yes, my /dev/cdrom DOES point to /dev/hdc, ...
>
>Have you tried it both with and without using SCSI emulation?

If the error is "not a valid block device" then /dev/hdc is
not a block special device. Show us what 'ls -l /dev/hdc'
displays.

Should be something like:

$ ls -l /dev/hdc
brw-rw---- 1 root disk 22, 0 May 5 1998 /dev/hdc

scott

On Thu, 08 Apr 2004 21:01:10 GMT, scott@slp53.sl.home (Scott Lurndal)
wrote:

>Mark Nagy writes:
>>On Wed, 07 Apr 2004 12:59:11 +0100, Fatos Berisha
>>wrote:
>>
>>>[...]
>>>P.S. And yes, my /dev/cdrom DOES point to /dev/hdc, ...
>>
>>Have you tried it both with and without using SCSI emulation?
>
>If the error is "not a valid block device" then /dev/hdc is
>not a block special device. Show us what 'ls -l /dev/hdc'
>displays.
>
>Should be something like:
>
>$ ls -l /dev/hdc
>brw-rw---- 1 root disk 22, 0 May 5 1998 /dev/hdc
>
>scott

Sometimes, the /dev entry doesn't tell the whole story - e.g., the
entry for a floppy disk I had incorrectly configured in BIOS once gave
the "not a valid block device" message, but there wasn't anything
clearly wrong in /dev. For another example, I actually have no
hardware corresponding to /dev/hde, and:

# ls -l /dev/hde
brw-rw---- 1 root disk 33, 0 Mar 27 23:05 /dev/hde
# mount /dev/hde /mnt/cdrom
mount: /dev/hde is not a valid block device