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linux:sudo [2016/04/05 15:26]
jansen
linux:sudo [2016/09/01 09:09]
jansen
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 So, why do we document it here? Mostly to point people to this page when they use the ''​sudo''​ command anyway. So, why do we document it here? Mostly to point people to this page when they use the ''​sudo''​ command anyway.
  
-Why do people try to use ''​sudo''?​+===== Why do people try to use ''​sudo''? ​===== 
   - Cut and paste from a ''​HOWTO''​ found on the internet. Possible pitfalls:   - Cut and paste from a ''​HOWTO''​ found on the internet. Possible pitfalls:
     - the ''​HOWTO''​ is for a different type of Linux. Anything containing ''​apt-get''​ will not work on Fedora / RedHat anyway, since apt is the Debian/​Ubuntu package manager. Package names are probably also different. (this is the most frequently encountered case in our ''​sudo''​ logs)     - the ''​HOWTO''​ is for a different type of Linux. Anything containing ''​apt-get''​ will not work on Fedora / RedHat anyway, since apt is the Debian/​Ubuntu package manager. Package names are probably also different. (this is the most frequently encountered case in our ''​sudo''​ logs)
-    - the software is already installed. Really, we try to do a good job to install everything needed for computations in astronomy, physics and mathematics. Including (most frequent case) all prerequisites for running [[http://​www.amusecode.org|AMUSE]] or [[http://​casa.nrao.edu|CASA]]. So try running your programs before trying to install them+    ​- the ''​HOWTO''​ may be ancient, eg asking to upgrade the ''​gcc''​ compiler to version 3.x, whereas we have version 5.3 at the moment, so such a misplaced downgrade might actually break big parts of the system, should you have succeeded. 
 +    ​- the software is already installed. Really, we try to do a good job to install everything needed for computations in astronomy, physics and mathematics. Including (most frequent case) all prerequisites for running ​MPI applications (OpenMPI and MPICH); ​[[http://​www.amusecode.org|AMUSE]] or [[http://​casa.nrao.edu|CASA]]. So try running your programs before trying to install them, or look here in our wiki for documentation on what is already installed.
     - many install notes explain how to install a package system-wide,​ even if there are ways to install it just for yourself, which is probably what you want anyway (see below for tips and details)     - many install notes explain how to install a package system-wide,​ even if there are ways to install it just for yourself, which is probably what you want anyway (see below for tips and details)
   - Mistaken identity or location (e.g. assuming you are in a terminal on your laptop, whereas you are actually logged in to our workstations). No harm done, and here it is a very good thing that your ''​sudo''​ attempt is blocked.   - Mistaken identity or location (e.g. assuming you are in a terminal on your laptop, whereas you are actually logged in to our workstations). No harm done, and here it is a very good thing that your ''​sudo''​ attempt is blocked.
linux/sudo.txt · Last modified: 2017/06/28 09:37 by jansen