Upgrade GNS3 from 0.7.2 to 0.7.3 on Ubuntu

If you are still running GNS3 0.7.2 it’s a good idea to upgrade towards GNS 0.7.3. I haven’t tested all of the features yet but so far there 2 things that i like:


  • The new etherswitch…I have no idea if it adds something compared to the old C3460 with NM16-SW switch but the new icon looks cool đŸ™‚
  • I managed to install the ASA8 within 5 minutes!


    If you are running Ubuntu this is the fastest way to upgrade from 0.7.2 to 0.7.3: (Thanks to a post from Rednectar on the GNS3.net forum)


    • cd /opt (if this is the folder where you installed GNS3)
    • sudo wget http://downloads.sourceforge.net/gns-3/GNS3-0.7.3-src.tar.bz2
    • sudo tar -xjvf GNS3-0.7.3-src.tar.bz2
    • sudo rm GNS3-0.7.3-src.tar.bz2
    • sudo rm -fr GNS3/docs
    • sudo rm -fr GNS3/qemuwrapper/
    • sudo rm -fr GNS3/src
    • sudo mv GNS3-0.7.3-src/* /opt/GNS3
    • sudo rm -fr GNS3-0.7.3-src/


    Just to be sure, change the owner to your username. Otherwise root will be the owner:


    • cd /opt (or another folder where you installed GNS3)
    • sudo chown -R username GNS3


    That’s it! Have fun with the new GNS3 version…if you find any new features please share by leaving a comment!


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      1. Shouldn’t be a problem. Grab the sources from gns3.net and it will be 90% similar.

    1. Re. GNS3 0.7.3 > 0.8.2 in Ubuntu

      Pretty much the same steps, with the additions:

      -added dynamips-0.2.8-RC3-community-x86.bin to /usr/bin and updated Dynamips preferences in 0.8.2 to use it (check ownership and permissions).

      -ensured 0.8.2 is loading the correct (saved) IOS image.

      -ensured permissions on /opt/GNS3/gns3.pyw are +x

      (see http://www.gns3.net/gns3-quick-start-linux/)

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