Answer / kishore devkate

Boot the server from cdrom steps below.
at the Ok Promt
1) Ok>boot cdrom -s :to boot in the single user mode

you will get #(has) prompt
#

2) mount the root file system on /a directory
i,e
#mount /dev/dsk/c0t0d0s0 /a

3) remove the encrypted passwd from the /a/etc/shadow file
then save the file
i,e
#vi /a/etc/shadow
remove the root user encrypted passwd
:wq!

4) reboot the server
i,e

#init 6

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