Hi Charlie,

you wrote in <199607292024.NAA01116@pc64.cs.cuhk.hk>:
> Can anyone help ?

>From "man ccd":

Note that the `raw' partitions of the disks should not be combined.  Each
component partition should be offset at least one cylinder from the be-
ginning of the component disk.  This avoids potential conflicts between
the compoent disk's disklabel and the ccd's disklabel.  The kernel will
only allow component partitions of type FS_BSDFFS.

> e.g.  disk   cylinder  sectors
>       ----   --------  -------
>        sd1       1000    50000
>        sd2       1000    50000
>       ccd0       2000   100000
                  >1998<

-- 
Matthias Scheler
tron@lyssa.owl.de