Thanks Lazlo for the help, i followed the generic_64 all went well, but after reboot nothing, the HD is not booting anymore, I wanted to try on this old T61 before i can perform the real test on a production pc.
I used the rescue cd from the link of main funtoo install page, since the T61 was not booting from HD i tried to boot from this rescue usb, now after reboot in the rescue cd it looks different e.g. i can not run any command, I tried lsblk nmtui etc but getting command not found
Let me know what can be done here
Thanks
Azher