LON-CAPA User Help: How do I SAFELY upgrade from RedHat 6.2 to RedHat 7.2?

<a href="">LON-CAPA User Help</a> : <a href="">Server System Administration</a> :
How do I SAFELY upgrade from RedHat 6.2 to RedHat 7.2?
    You should only upgrade from RedHat 6.2 to RedHat 7.2 if you
    are an experienced Linux System Administrator.
    
    1. Backing up
    2. Upgrade to RedHat 7.2
    3. Secure your machine
    4. Download stable LON-CAPA release
    5. Check the status of your RPMs
    6. Additional RPMs to download
    7. Recheck the status of your RPMs
    8. Updating your kernel
    9. Install LON-CAPA
    10. Set up MySQL and systemperl.
    
    ##################
    # 1. Backing up. #
    ##################
    
    There are two things that you must, by all costs, save.
    
    **** All the files in the /home directory.
         (NOTE: You will not be able to save the
          /home/httpd/sockets directory)
    
    **** Your machine's configuration.
         I recommend you print out:
         /etc/hostname
         /etc/hosts
         /etc/resolv.conf
         /etc/httpd/conf/access.conf
         /etc/httpd/conf/loncapa.conf
    and any other files described at http://install.lon-capa.org/reconfig/.
    
    ############################
    # 2. Upgrade to RedHat 7.2 #
    ############################
    
    Here are two helpful links:
    http://www.redhat.com/docs/manuals/linux/RHL-7.2-Manual/install-guide/
    http://www.redhat.com/docs/manuals/linux/RHL-7.2-Manual/pdf/rhl-ig-x86-en-72.pdf
    
    ##########################
    # 3. Secure your machine #
    ##########################
    
    Do the following:
    echo "ALL: PARANOID" > /etc/hosts.deny
    Make any other modifications to your /etc/hosts.allow and /etc/hosts.deny.
    
    The next goal is to update all of your
    RPMs as quickly as possible (to avoid
    a network break-in.  Ideally, you
    would not be connected to the network
    and would have downloaded/burned onto CD-R's
    the contents of:
    ftp://mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/i386
    ftp://mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/i486
    ftp://mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/i586
    ftp://mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/i686
    ftp://mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/noarch
    
    Otherwise, you need to first ethernet configure
    your computer.
    
    #######################################
    # 4. Download stable LON-CAPA release #
    #######################################
    
    This is still done with CVS.  Please consult:
    http://install.lon-capa.org/docs_old/cvsupgrade/
    
    ####################################
    # 5. Check the status of your RPMs #
    ####################################
    
    cd loncapa/loncom/build
    perl check-rpms -ftp
    mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/ -d
    /home/user/install --no-kernel --download
    cd /home/user/install
    rpm -Uvh *.rpm
    should be a fairly straight shot
    (you may need a few more additional RPMs from
    ftp://mirror.pa.msu.edu/linux/redhat/redhat-7.2-en/os/i386/RedHat/RPMS/.)
    
    ##################################
    # 6. Additional RPMs to download #
    ##################################
    
    Compare the RPMs on your system (rpm -qa) with
    loncapa/doc/otherfiles/rpm_list.txt
    
    ######################################
    # 7. Recheck the status of your RPMs #
    ######################################
    
    Recheck the status of your RPMs
    one more time.
    
    perl check-rpms -ftp
    mirror.pa.msu.edu/linux/redhat/linux/updates/7.2/en/os/ -d
    /home/user/install --no-kernel --download
    
    ###########################
    # 8. Updating your kernel #
    ###########################
    
    Follow the instructions at:
    http://www.redhat.com/support/resources/howto/kernel-upgrade/
    
    Note: If you fail with the kernel update, you will have to:
      * insert a RedHat 7.2 Disc #1
      * Type "linux rescue" at the boot prompt
      * and try to make fixes onto the filesystem
    
    #######################
    # 9. Install LON-CAPA #
    ######################
    
    Please see http://install.lon-capa.org/; especially
    http://install.lon-capa.org/docs_old/cvsupgrade/
    
    The goal is to run:
    make install
    
    ###################################
    # 10. Set up MySQL and systemperl #
    ###################################
    
    See loncapa/doc/how_to_install_on_RedHat7.2.txt
    


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