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Re: how do I set 'home' for root



Claude Jones wrote:
On Wednesday April 27 2005 4:10 pm, Rick Stevens wrote:

Claude Jones wrote:

So root is lost - can someone help me tell it how to 'phone home'? I was
wondering why I was getting the strange 'sh-3.00#' prompt in the third
line where I used to get 'root viewridgeproductions2 ]$'  I think lines 4
and 5 are my clue, but I don't how to fix this, or for that matter, how
it got into this state.

"su" only changes the process' effective UID, but doesn't give you root's environment. "su -" DOES give you root's environment (including root's path and, yes, $HOME). It's equivalent to logging in as root.


Assuming I understood you correctly, I tried this:
sh-3.00# su cj
[cj viewridgeproductions2 misc]$ su root
Password:
sh-3.00# kcontrol
Aborting. $HOME is not set.
sh-3.00#

I'm getting the same bad result, if I follow you right.

The command is


su -

(ess-you-blank-dash).  If no username is used after the dash, root is
assumed.  The dash option makes "su" perform the same things that a
login would.  For an example:

$ su cj

makes your effective UID that of user "cj", but you retain YOUR
environment, current directory, etc., while

$ su - cj

would make your effective UID that of user "cj" AND give you cj's full
environment.  You're also transferred to cj's home directory (which
is how $HOME gets set anyway).
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-       A squeegee, by any other name, wouldn't sound as funny.      -
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