hpt366 and disklabel problem

[Omer Faruk Sen]

Hi. 

I have an old system that has hpt366 card on it. I have connected 4 drive 
connected to it. But after connecting those drives to that hpt366 I can not 
do disklabel on them but i can if i connect it to normal ide connectors. 

I am using GENERIC 4.8 kernel that ships with 4.8Release. The error message 
that disklabel gives me is: 

#dd if=/dev/zero of=/dev/ad7 count=1
#disklabel -r -w ad7 auto
disklabel: ioctl DIOCWLABEL: Operation not supported by device 

Any help really appreciated.
REGARDS...