# 3.5 HP9000/700: MATLAB Can Only Be Run as Root

## Problem

After installing MATLAB on an HP9000/700, it can only be run if the user is 'root', and lmdebug shows nothing when "lmhostid" is executed.

## Solution

If using the ethernet device for lmhostid (not HP-Hil), /dev/lan0 needs to have the permissions set to world readable. This is not always the default when delivered from HP. If not set, MATLAB can only be run as 'root'. The "lan0" file must be set to 'rw' (read/write) permission in order to work properly. To do this use the following command:

    chmod 666 /dev/lan0

This will result in setting the correct permissions.

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