help installing scsi squirrel cd drive

[moschops99]

hi im trying to install a highsoft squirrel on my a1200 with a scsi cdrom drive with no luck im using the install disc but it gets so far then says
volume
squirrelscsi
is full
sorry an error has occured
copyfiles:couldnt copy a file
dos error type:could not write to disk-the disk was full
help
thanks andy
also says a dos error 221 has occured

[moschops99]

yeah got a 3 gig one so should be plenty of room dunno what im doing wrong .
if i select the novice user option i thought it would do it all automatically
but if i select the intermediate user i can select the drive i want it installed on and it still says squirrelscsi is full

[moschops99]

no im putting the disc in and booting from that
and as i say i can select what drive i want it installing to and it still says full

[moschops99]

sorted thanks very much
andy