This document gives a summary of the causes and recovery procedures for an LED 611 during a Sysback network boot. The information in this document has been verified for AIX Versions 3.2, 4.1, 4.2 and 4.3. It has also been verified for sysback.obj 3.3.3 and sysback.rte 4.1.x.x.
The following document is also recommended.
"Causes of an LED 610 During a Sysback Network Boot", document #8579
The product documentation library is also available:
http://www.rs6000.ibm.com/resource/aix_resource/Pubs/index.html
An LED 611 occurs when the Network File System (NFS) mount of the /usr file system from the server fails during a Sysback network boot.
When the following conditions result in an LED 611, perform the solutions shown:
Enter the following command:
exportfs
Look for the line starting with /usr. Make sure the client host name is included on the line.
EXAMPLE
/usr -ro, root=node1,node2
In the preceding example, only node1 and node2 are exported to NFS mount /usr. If your client's host name is not included on that line, add the network boot client as follows:
smitty sysback
Configuration Options Network Boot Configuration Add or Change a Network Boot Client
Client network adapter type [token-ring] Client platform/kernel type [rspc] Client hostname [mars.aix.dfw.ibm.com] Server IP address [9.19.129.186] Client gateway address (optional) [9.19.141.241] Client subnet mask (optional) [255.255.240.0] Client adapter hardware address (optional) []
exportfs
Look for the line starting with /usr. Make sure the client host name is included on the line.
SOLUTION
Enter the following command:
exportfs
If there is no entry for /usr in the /etc/exports file, follow the steps in the "Solution" section of step 1.
The following error message may occur when adding the network boot client:
Configuring network boot for client... thumper.aix.dfw.ibm.com /usr ro,root=thumper.aix.dfw.ibm.com Starting NFS and BOOTP services... exportfs: /usr: sub-directory (/usr/lpp) already exported /usr not found in /etc/exports
The preceding messages indicate that the client has been configured but you must correct the problem with the export function before booting the client.
exportfs
If a subdirectory for /usr that is not a file system is already in the /etc/exports file, then you cannot export the parent directory /usr.
Example output from the exportfs command is shown below:
/usr/sys/inst.images -rw /usr/lpp -root=mars,access=mars
In this example, /usr/sys/inst.images is its own file system but /usr/lpp is still part of /usr file system. You cannot export /usr until you remove /usr/lpp from the /etc/exports file. See step b.
/usr/sbin/rmnfsexp -d /usr/lpp -B
exportfs
Look for the line starting with /usr. Make sure the client host name is included on the line.
In the U.S., updates of Sysback are available by calling 800-225-5249. Ask to speak with the Sysback Marketing Team. Outside the U.S., contact your AIX sales representative.
Install the new version of Sysback and rebuild your boot image:
smitty sysback
Configuration Options Network Boot Configuration Configure/Update a Network Boot Image
APAR: IX54851
Fileset Name Level -------------- ------- bos.adt.prof 4.1.4.5 bos.rte.libc 4.1.4.5 bos.net.nfs.client 4.1.4.4 bos.sysmgt.quota 4.1.3.1 bos.net.tcp.client 4.1.4.4
If you followed all of the preceding steps and the system still hangs at an LED 611 during a network boot to Service mode, you may want to pursue further system recovery assistance from one of the following:
All of the preceding avenues for assistance may be billable.
For reasons of time commitment and the integrity of your AIX operating
system, the best alternative at this point may be to reinstall AIX.
[ Doc Ref: 90605189714760 Publish Date: Mar. 19, 2001 4FAX Ref: 8582 ]