There is a third reason why you can't treat a CD-RW just like
a hard disk drive:
3) A CD has 2048 byte data sectors. FreeBSD hard disk drivers expect 512
byte sectors. The CD driver might have to be modified to fake the hard
disk sector size.
Even if the UFS fragment size is a multiple
>>
> Can I format an rw cd with
>
> disklabel -w -r /dev/acd0c cd9660
> newfs /dev/acd0c
>
> and then use it just like an hard drive?
>
> Cp /etc/rc.conf /cdrom
>
> Or is burncd the only way to write to it?
>>
I don't know for sure, but I doubt this would work very well.
Two reasons:
1) You would