MathGroup Archive 2001

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Re: password problem

  • To: mathgroup at
  • Subject: [mg29964] Re: password problem
  • From: Jens-Peer Kuska <kuska at>
  • Date: Fri, 20 Jul 2001 03:28:28 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <9j65ug$2hg$>
  • Sender: owner-wri-mathgroup at


from my experience with Partition Magic on my dual boot
configuration, I assume that the MathID is generated from
the data on the root partition if you have no network card
with a MAC address. Since the root partition does not change
it seems impossible that you get a new MathID.

But Mathematica can store the password on two places
first in 


and second in your local preferences directory


I assume that you have installed Mathematica and enter
the password as a root. Mathematica has (on my Mandrake 8.0)
Linux the habit to write the password file into the
preferences directory of the root and not into the
global $TopDirectory/Configuration/Licensing/mathpass
this hinder all other users to use Mathematica.

Please login as root, look if you have a 

and copy/move this file to


and ... hopefuly it will work.


Pawel Felcyn wrote:
> I am running Mathematica 4.1 on my linux (RedHat 7.1) computer.
> I can start Mathematica session with no problem as a root
> but after turning on my computer and typing mathematica as
> an ordinary user I get a new mashine ID number ( different than that
> of the root).
> To get around this problem I usually open a new xterm and enter math
> as a root. Then I close the math session and logout as root from
> the x-terminal. Only now I can open mathematica as a ordinary user
> without Mathematica generating a new mahine ID number and without
> asking for a new password.
> I is there a way to fix this so that I can open Mathematica
> as a user directly whenever I turn on my computer?
> Otherwise, after mamy times this problem becomes a bit annoying.

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