How do I unmount /usr -- solution

[Ed Ravin]

To clear a few things up, and as a contribution to the FAQ (Bjorn?  Are you
out there, Bjorn? :-), here's a checklist for unmounting /usr under AIX on
an RS 6000 -- 

First, you have to go to single user mode or otherwise knock down all
them daemons who are referencing /usr:

# init 0

Then, unmount anything mounted under /usr.  If you have the CD-ROM for
info "hypertext" documentation, this means you.
# umount /dev/cd0

Shut down the error daemon, who still lives on even in runlevel 0:
# /usr/lib/errstop

Last, but by no means least, you need to tell your shell not to look in
/usr for the national language support messages, and then re-run the shell.

# LANG=""; exec ksh   # (or sh, bsh, etc.) 

You can also switch to csh -- though csh has many faults, using
IBM's national language support is not one of them.

You should now be able to unmount /usr.
-- 
Ed Ravin            | I'm sorry, sir, but POSTAL REGULATIONS don't allow
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