HP Tru64 UNIX Technical Updates for the Version 5.1B and Higher Operating System and Patches (February 2010)

The problem may occur after the initial reboot of the lead cluster member or after the rolling

upgrade is completed and the clu_upgrade switch procedure has been run. The following

sections describe the steps you can take to prevent the problem or correct it after it occurs.

Preventing the problem

You can prevent this problem by performing the following steps before beginning the rolling

upgrade:

1. Disable the prpasswdd daemon from running on the cluster:

# rcmgr -c set PRPASSWDD_ARGS \

"`rcmgr get PRPASSWDD_ARGS` -disable"

2. Stop the prpasswdd daemon on every node in the cluster:

# /sbin/init.d/prpasswd stop

3. Perform the rolling upgrade procedure through the clu_upgrade switch step and reboot

all the cluster members.

4. Perform one of the following actions:

• If PRPASSWDD_ARGS did not exist before this upgrade (that is, if rcmgr get

PRPASSWDD_ARGS at this point shows only -disable), then delete PRPASSWDD_ARGS:

# rcmgr -c delete PRPASSWDD_ARGS

• If PRPASSWDD_ARGS existed before this upgrade, then reset PRPASSWDD_ARGS to the

original string:

# rcmgr -c set PRPASSWDD_ARGS \

"`rcmgr get PRPASSWDD_ARGS | sed 's/ -disable//'`"

5. Check that PRPASSWDD_ARGS is now set to what you expect:

# rcmgr get PRPASSWDD_ARGS

6. Start the prpasswdd daemon on every node in the cluster:

# /sbin/init.d/prpasswd start

7. Complete the rolling upgrade.

Correcting the problem

If you have already encountered the problem, perform the following steps to clear it:

1. Restart the prpasswdd daemon on every node in the cluster:

# /sbin/init.d/prpasswd restart

2. Reboot the lead cluster member.

3. Check to see if the problem has been resolved. If it has been resolved, you are finished. If

you still see the problem, continue to step 4.

4. Try to force a change to the auth database by performing the following steps:

a. Use edauth to add a harmless field to an account, the exact commands depend on your

editor. For example, pick an account that does not have a vacation set and add

u_vacation_end:

# edauth

s/:u_lock@:/u_vacation_end#0:u_lock@:/

b. Check to see that the u_vacation_end#0 field was added to the account:

# edauth -g

c. Use edauth to remove the u_vacation_end#0 field from the account.

If the edauth commands fail, do not stop. Continue with the following instructions.

Patch Kit Updates 15