third IDE

[Mark]

Ok, I bought the Promise Ultra133, and now FreeBSD (4.9R) recognized my third IDE port:

ATA channel 2:
    Master:  ad4 <Maxtor 6Y080L0/YAR41BW0> ATA/ATAPI rev 7
    Slave:       no device present

But I cannot mount it! "mount /dev/ad4s1a /backup" says:

"mount: /dev/ad4s1a: No such file or directory"

And /dev/ad4 does not exist in /dev/. How do I create it??

Thanks, 

- Mark