I discussed here about resetting the password on Sun Solaris Operating system in SPARC platform. While the procedure is almost the same wherein you boot with the CD into single user mode and mount the root partition, here we discuss the procedure to reset the password for the root user on the x86 platform.
It is recommeded that the security for the physical access to the server is restricted so as to ensure that there is no unauthorized access and anyone who follows this routine is an authorized personnel.