Mounting USB CD-ROM manually, after boot

[David M. Patronis]

Steve Bertrand wrote:
> Hi everyone,
>
> To get right to the chase, FBSD 7.0, I plug in an external USB CD-ROM 
> device with a CD (of FreeBSD 7.0) and I want to mount it manually into 
> the filesystem.
>
> The device shows up with a label, and appears as /dev/cd0 (in dmesg).
>
> # mount /dev/cd0 /cdrom
>
> ...fails, with a:
>
> mount: /dev/cd0 : Invalid Argument
>
> I have nothing else in /dev that would indicate any new device was 
> attached. I know for fact the .iso is burned correctly, because I can 
> boot from the same CD on another PC. Even still, a bad ISO burn still 
> shouldn't prevent me from mounting AFAIK.
>
> I've also tried all manner of cd0a etc, but they don't exist. (I can 
> confirm cd0 is the only entry that appears in /dev after USB insertion).
>
> Can anyone shed some quick light onto the solution that I am likely 
> purely overlooking?
>
> Thanks,
>
> Steve
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Try this:

mount_cd9660 /dev/cd0  /mnt

If that doesnt work try "acd0". This works on my system at any rate.

David