What's inappropriate about my ccd?

Frequently Asked Questions for FreeBSD 2.X : System Administration : What's inappropriate about my ccd?
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8.15. What's inappropriate about my ccd?

The symptom of this is:

        # ccdconfig -C
        ccdconfig: ioctl (CCDIOCSET): /dev/ccd0c: Inappropriate file type or format
        #

This usually happens when you are trying to concatenate the `c' partitions, which default to type `unused'. The ccd driver requires the underlying partition type to be FS_BSDFFS. Edit the disklabel of the disks you are trying to concatenate and change the types of partitions to `4.2BSD'.