ITEM: V6136L

Network boot with sysback hungs on led 666

Question:

Env: SP2
     Aix 3.2.5
     Sysback 3.2        

Desc: 
The customer is having a problem when he 
tries to netboot from a sysback network boot image.
When the customer boots off the image he gets
tftp packets sent and received, however at a certain
point in the trasfere it stops and hangs with the the
led 666.

Action:
We found that the led 666 is coming from
the /usr/lpp/sysback/netinst/boot/rc.boot3 
script.  At this time the script is attempting to run
a command:
 cfgmgr -p2 -v

The problem is that when sysback is doing a network
install it NFS mounts the /usr filesystem to the client
so that is can execute some commands.  One of the commands
that it tries to run is the above.
After looking into the problem the customer had exported the 
/usr filesystem to the node without 'root' permissions.
he had en entry similar to this one:

/usr                 -ro,root=node1,node2:access=node3,node4

In this example node1 and node2 would be able to network install
without a problem, however, node3 and node4 would fail with
the led 666.  We changed the export list to look like this:

/usr                 -ro,root=node1,node2,node3,node4

and then all the nodes were able to network install without 
a problem.

Next: closing call.



Support Line: Network boot with sysback hungs on led 666 ITEM: V6136L

Dated: June 1995 Category: N/A

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