Infrastructure Software

hello experts
i got a ultra 80 workstation

it had a Redhat8 when i bought. and it was working fine.

know i am trying to install solaris 10 onthe system its giving very funny errors

it has 2 disk raid 1 i beleive. (mirror)

at ok prompt i run the format command and formated disk0 and disk1 and it went perfect

here is the problem

after formating
i ran
ok boot cdrom
went fine untill i selected the region but before installing it gave this error

no disk found
check to make sure disks are cabled and powered up

the disk are ok i can see 2 disks
when i did the format it did format

format -print -print
i can still see disk partition table of redhat8 . i think
i try to delete the partiton 0- 7 i deleted easy . and when it come to 8 its not excepting the command
its labeled as reserved . i think that the issue

to my knowledge slice 2 is take the control in solaris
in the same way slice 8 is by redhat i think . which causing the problem and its not deleting

all i need to deleted the disk partion table of exisitng redhat 8. which didnt deleted after using format command on both disks

please tell me the command to delete the disk partion or any suggestion to overhead this issue

i check the manual sol8 9 10 are compatible on i t
i study the whole handbook of ultra80 workstation cant find the error which i got here

waiting for early reply

please tell what option i can try to delete the existing disk partiton table . (which i think is the issue here but i might be wrong )

javeed abdul