Hi,
I have a Dell D600, and I count mount flash devices on it. They show up in dmesg. Here I put the drive in the top one, pull it out and stick it in the bottom one, and then put it back in the top one:
ugen0: SanDisk Corporation Cruzer Mini, rev 2.00/0.10, addr 2 ugen0: at uhub0 port 1 (addr 2) disconnected ugen0: detached ugen0: SanDisk Corporation Cruzer Mini, rev 2.00/0.10, addr 2 ugen0: at uhub0 port 1 (addr 2) disconnected ugen0: detached ugen0: SanDisk Corporation Cruzer Mini, rev 2.00/0.10, addr 2
Strangely, they show up as the same address on the same device. When I try to mount ugen0, I get a message that sayeth:
Block device required.
What does this mean? What do I do?
- Jason
Saint Aardvark the Carpeted wrote:
Jason Dusek disturbed my sleep to write:
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
Huh...you should have /dev/acd0c already. Try going to /dev and running:
sh ./MAKEDEV acd sh ./MAKEDEV cd
and try it again. If it *still* doesn't work, I would wonder if there's a problem with this particular disk. Is it a rewritable? Do you have a known-good CD that you can try, or another machine you can try the problematic disk on?
Remember, /dev/cd0c is to be used if this is a DVD you're trying to
mount. (That said, I'm going by memory here, and you *may* be able
to get away with mounting a DVD using /dev/acd0c.)
Do I need to create some directories for this to work? How will my computer know what directories to attach the drive to?
The mount command (or its variants like "mount_cd9660") usually takes two arguments: the device you want to mount, and where you want to
mount it. (I'm ignoring other, hyphenated arguments like "-o rw"
and so on.) So for:
mount_cd9660 /dev/acd0c /cdrom
you're saying that you want the device /dev/acd0c to be made available at the *already-existing* directory /cdrom. (So yes, the mount point -- the directory you want to mount the device at -- has to be present already.)
You can leave out one or the other argument (but not both) if there's an entry for the device in /etc/fstab. For example, you might have this entry:
/dev/acd0c /cdrom cd9660 ro,noauto 0 0
which would mean you could get away with either
mount /cdrom
or
mount /dev/acd0c
HTH, Hugh
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