SUMMARY: Problem with jumpstart

From: Sreenivasa Rao Vadalasetty <>
Date: Fri Jan 11 2002 - 02:20:02 EST
I could finally get this problem resolved.   It is quite surprising that the
problem was due to an NT server on the subnet which was trying to
authenticate the rpc calls.   

Many people suggested the following:
1)	To check the subnet mask of both the install client  and install
2)	To check whether /export/install is shared properly
3)	To check bootparams

I have tried everything possible in vain. A mail in the sunmanagers archives
gave me a clue to debug this and fix it. I have initially not believed this
as there was no clue in the snoop output when the install client and server
were connected to two different switches on the same subnet. But when I
connected install client and server to a hub and tested, I could notice that
an NT server was authenticating rpc replies with a following message: -> RPC R (#3332)
XID=3553633865 Can't authenticate (client should begin new session)
The following is what helped me identify and resolve this problem:
 <<can not mount root.htm>> 

Thanks to all who have taken their precious time to reply and Jeff for
documenting his experience.  

	-----Original Message-----
	From:	Sreenivasa Rao Vadalasetty []
	Sent:	Tuesday, January 08, 2002 9:03 PM
	To:	''
	Subject:	Problem with jumpstart

	Hi, I have a problem with my jumpstart. Any client installation
using the
	jumpstart fails with the following message. I am sure that I have
	/export/install and /export/jumpstart properly (mounted and shared).
I have
	checked the mail archives which did not help me resolve this
problem.  I
	have tried snoop for the install client from install server as well
as other
	hosts - but no clue.  

	Could you let me know if you have any idea as to why this fails at
the point

			Rebooting with command: boot net - install

			Boot device: /sbus/SUNW,hme@e,8c00000  File and
args: -
			Timeout waiting for ARP/RARP packet
			2ec00 hostname:
			root server:
			root directory:
			SunOS Release 5.6 Version Generic [UNIX(R) System V
			Copyright (c) 1983-1997, Sun Microsystems, Inc.
			WARNING: whoami: bootparam RPC failed: error 7 (RPC:
	Authentication error).
			WARNING: nfsdyn_mountroot: NFS3 mount_root failed:
error 6
			Cannot mount root on /sbus@1f,0/SUNW,hme@e,8c00000
			panic[cpu0]/thread=0x10404040: vfs_mountroot: cannot
			Resetting ... 

	Some information related to this:
		Shared /export/install and /export/jumpstart on
					#share |egrep 'install|jumpstart'
					-               /export/install
	"Install directory on install server" 
					-               /export/jumpstart
	ro,anon=0   "Jumpstart directory on install server" 
		Configured install client in /etc/hosts, /etc/ethers and
	/etc/bootparams on install server.

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Received on Fri Jan 11 01:26:17 2002

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