Paging Space allocation of RS6000

[Julie A. Levell]

In article <1991Apr16.041508.12953 at cmcl2.nyu.edu> lixj at acf4.nyu.edu (Xiaojian Li) writes:
>disk hdisk0 has been partitioned into / /usr /tmp. We have about 100MB
>free on /usr, so we decided to free it up and get a partition out of it.
>But I CAN NOT EVEN UMOUNT IT!
>
>Is there any crucial file on /usr that it is not allowed to be touched?
>What will happen if I don't have /usr filesystem? (that needs to be the
>case, I may backup entire /usr, then distroy it, repartition, then restore).

Well, usually the reason it won't let you unmount it is because /usr
contains the messages, so if you have your LANG variable set to
En_US then it has the catalogs in /usr/lpp/msg/En_US open.  

Also, if you don't have a /usr then you could run into problems in 
booting because /usr/lpp/fonts contains the fonts for the hft and
/usr/bin/odmget is used at boot time to determine what the key 
position is that tells diagnostics to run or not.  We've seen this problem
before and it usually leads to a c99 in the LED.  

I would recommend shutdown -m after you've changed your LANG variable.

>Xiaojian 


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Julie A. Levell  IBM  Austin, Texas      Internet: julie at aixwiz.austin.ibm.com
IBMNET: JULIEL at AUSVMQ 4C-29/994       SpeakNet:  823-5178 (Tie 793-5178)
"Let's use the ODM Interface"  Commander William Riker  STTNG  "The Nth Degree"