help me! jumpstart installtion error

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http://www.unix.com – Hi actualy my two machines are sun sparc ultra 60. Both are same configuration. I am trying jumpstart Installation in my two machines, i got no errors in server side but in the client side actually it detects the server machine with correct hostname and domainname but after showed that it will stops like this "cannot open either boot_archive nor miniroot in /export/install/Solaris_10/Tools/Boot Enter filename:" plz help me.....:confused: (HowTos)