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    Diving into CentOS 7

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    • sudburrS
      sudburr
      last edited by

      Got it. Thx.

      [ Standing in between extinction in the cold and explosive radiating growth ]

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      • sudburrS
        sudburr
        last edited by sudburr

        Interesting. My CentOS installation is less than half the size of Debian.

        2.3GiB vs 5.3GiB
        P.S. I got it even further down to 1.66GB, but then aha. I switched from XFS file system to ext4 and it’s now 5.5GB.

        [ Standing in between extinction in the cold and explosive radiating growth ]

        Wayne WorkmanW 1 Reply Last reply Reply Quote 0
        • Wayne WorkmanW
          Wayne Workman @sudburr
          last edited by

          @sudburr said:

          Interesting. My CentOS installation is less than half the size of Debian.

          2.3GiB vs 5.3GiB

          … 😕 I’ve been advocating for Fedora / CentOS for a long time… lol

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
          Daily Clean Installation Results:
          https://fogtesting.fogproject.us/
          FOG Reporting:
          https://fog-external-reporting-results.fogproject.us/

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          • sudburrS
            sudburr
            last edited by sudburr

            I’ve run into my first problem with CentOS that I haven’t found a direct solution for yet. It’s a difference in syntax for ‘git’ compared to Ubuntu/Debian.

            Git in Ubuntu/Debian allows me to direct clone and pull to a specific path (/opt/trunkgit) using:

            git -C /opt/trunkgit clone https://github.com/FOGProject/fogproject.git /opt/trunkgit
            git -C /opt/trunkgit pull
            

            Git in CentOS doesn’t have a -C . For now I’m making do with

            cd /opt/trunkgit
            git clone https://github.com/FOGProject/fogproject.git
            

            … but, git then creates the directory /opt/trunkgit/fogproject and downloads to that. For updating I must then:

            cd /opt/trunkgit/fogproject
            git pull
            

            I like my scripts to have as few differences as possible between OSes so I’m looking for a way for git to perform the same in all three.

            Pausing to reflect on what I just wrote … I realize I needed to think in the other direction. This works:

            if [ ! -d /opt/trunkgit ]; then
            mkdir /opt/trunkgit
            fi
            if [ ! -d /opt/trunkgit/fogproject ]; then
            cd /opt/trunkgit
            git clone https://github.com/FOGProject/fogproject.git
            else
            cd /opt/trunkgit/fogproject
            git pull
            fi
            if [ ! -d /opt/trunksvn ]; then
            mkdir /opt/trunksvn
            fi
            if [ ! -d /opt/trunksvn/fogproject ]; then
            mkdir /opt/trunksvn/fogproject
            fi
            svn co https://svn.code.sf.net/p/freeghost/code/trunk /opt/trunksvn/fogproject
            

            My brain is cooked… I spent too much time in the sun at a Canine Agility competition today.

            [ Standing in between extinction in the cold and explosive radiating growth ]

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            • sudburrS
              sudburr
              last edited by

              This leads me to my next task.

              How to detect the OS variant. Namely Ubuntu, Debian or CentOS An if then idea.

              [ Standing in between extinction in the cold and explosive radiating growth ]

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              • sudburrS
                sudburr
                last edited by sudburr

                Looks like this might do it:

                if [ -f /etc/debian_version ]; then
                fi
                
                if [ -f /etc/centos-release ]; then
                fi
                

                [ Standing in between extinction in the cold and explosive radiating growth ]

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                • sudburrS
                  sudburr
                  last edited by

                  Okay, next problem. I can’t get SELINUX to not start.

                  sed -i "s/=enforcing/=disabled/g" /etc/sysconfig/selinux
                  setenforce 0
                  

                  … is not doing it. After reboot, sestatus shows SELINUX is still enabled.

                  [ Standing in between extinction in the cold and explosive radiating growth ]

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                  • sudburrS
                    sudburr
                    last edited by sudburr

                    I see my mistake now. Though there is a /etc/sysconfig/selinux , I wanted to edit /etc/selinux/config .

                    To cover my bases I’m editing both. I suspect that the first is generated by the second:

                    setenforce 0
                    sed -i "s/=enforcing/=disabled/g" /etc/sysconfig/selinux
                    sed -i "s/=enforcing/=disabled/g" /etc/selinux/config
                    

                    … and checking … yep, that did the trick.

                    Now for an actual Fog install.

                    [ Standing in between extinction in the cold and explosive radiating growth ]

                    Wayne WorkmanW 1 Reply Last reply Reply Quote 1
                    • Wayne WorkmanW
                      Wayne Workman @sudburr
                      last edited by

                      @sudburr lol you’re so hardcore.

                      What’s wrong with using Vi and just opening the file and changing the “enforcing” to “disabled” ?? lol

                      and for the record, /etc/selinux/config is the only one you need to edit. 🙂

                      There is also a “permissive” mode for SELINUX. something to think about.

                      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                      Daily Clean Installation Results:
                      https://fogtesting.fogproject.us/
                      FOG Reporting:
                      https://fog-external-reporting-results.fogproject.us/

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                      • sudburrS
                        sudburr
                        last edited by

                        Manually using VI is slow.

                        It’s far easier to simply copy and paste the command code in a single click.

                        Considering that disabling SELINUX is from your horses mouth, what’s the point of permissive?

                        [ Standing in between extinction in the cold and explosive radiating growth ]

                        Tom ElliottT Wayne WorkmanW 2 Replies Last reply Reply Quote 0
                        • Tom ElliottT
                          Tom Elliott
                          last edited by

                          VI can do copy and paste, for what it’s worth.

                          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                          • Tom ElliottT
                            Tom Elliott @sudburr
                            last edited by

                            @sudburr And you can use sed statements in vi as well to change only the lines you need.

                            For example, instead of sed -i, in VI/VIM you would type:

                            :%s/=enforcing/=disabled/g

                            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                            Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                            Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                            • Tom ElliottT
                              Tom Elliott
                              last edited by

                              And to help a bit more in the understanding of SELinux and it’s modes: https://wiki.gentoo.org/wiki/SELinux/Tutorials/Permissive_versus_enforcing

                              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG! Get in contact with me (chat bubble in the top right corner) if you want to join in.

                              Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

                              Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

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                              • Wayne WorkmanW
                                Wayne Workman @sudburr
                                last edited by Wayne Workman

                                @sudburr said:

                                Considering that disabling SELINUX is from your horses mouth, what’s the point of permissive?

                                For myself and many other people who have came to the forums in distress, FOG doesn’t fully work with SELinux in “enforcing” mode. However, it’s one of my goals to get fog to work with it turned on fully.

                                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!
                                Daily Clean Installation Results:
                                https://fogtesting.fogproject.us/
                                FOG Reporting:
                                https://fog-external-reporting-results.fogproject.us/

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                                • sudburrS
                                  sudburr
                                  last edited by

                                  Well I have FOG running happily on CentOS 7.1 now.

                                  As much as enjoy Debian 8.2 over Ubuntu 14/15 now, I dare say I may prefer CentOS 7.1 now. 😎

                                  [ Standing in between extinction in the cold and explosive radiating growth ]

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                                  • sudburrS
                                    sudburr
                                    last edited by sudburr

                                    As I’ve re-edited above, it appears the file system footprint was a result of installing CentOS 7 using the default Partition Scheme LVM and the file system, which happens to be XFS.

                                    Switching the install to use Standard Partitions and the ext4 File system for sda1/2/3 results in a fs footprint on par with Debian at 5.5GB. And by footprint I mean .vhdx file size.

                                    [ Standing in between extinction in the cold and explosive radiating growth ]

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                                    • sudburrS
                                      sudburr
                                      last edited by sudburr

                                      Success on all fronts.

                                      I have successfully created a generalized virtual server running CentOS 7.1 with FOG Build 4820. I can dump an image of it onto any hardware we use, mobile, desktop or virtual and it works exactly as desired.

                                      I like it so much I’m making it my new standard.

                                      There were some new hoops to jump through, but the CentOS community and online documentation provided solutions using native commands and features.

                                      I even succeeded with no issues whatsoever in converting my vm development fog from Debian8.2 to CentOS7.1 in about 15 minutes.

                                      I love slaying dragons. 😎

                                      [ Standing in between extinction in the cold and explosive radiating growth ]

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