Help plz with Squirel SCSI and external cd drive

[unite]

I'm trying to setup my Squirel SCSI on this Amiga I'm currently selling.  But for some reason every time I go to mount the CD drive I get an error message 'Error: Invalid Rigid Disk Block.'  Everything seems fine so I'm not sure why I'm getting this message.  

Any ideas whats going on as I would like to have the thing setup for whoever buys the machine.

Edit: The error has changed to 'Error: Device not of required type.'

[twizzle]

its been a while since i setup a scsi squirrel,

you have to have it connected and switched on first,
then switch on your 1200.
insert the scsi setup disc & run,
it should bring up a box with a list of devices,
the scsi squirrel cd is usualy unit 2 or 3 ?
highlight your device, click save.
in devs drawer see if its put in CD0/2/3 ?
if not, in storage copy CD0 to devs/drivers then rename it CD2 OR CD3 ??
click info, in the tooltypes, rename the UNIT=2 or UNIT=3 ?? then double click to mount.
then you need to reboot and it should work.
there is a readme file on the disc.

[Amiduffer]

Make sure that in your CD0: that squirrelscsi.device and the unit # of your CD is there.

[twizzle]

Amiduffer wrote:
Make sure that in your CD0: that squirrelscsi.device and the unit # of your CD is there.

 thanks Amiduffer :-) i had forgot about that.

[unite]

Cheers lads, that fixed it.