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{{Tip box|Please only use a virtual machine to test this.Try to follow what others have done and repeat it. Make any notes yourself and post your findings.}}
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Back to [[SME_Server_9.0_Development|SME Server 9.0 Development]]
== SME 9, based on CentOS 6 ==
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An overview of related SME9 development pages can be found [[:Category:SME9-Development|here]].
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=== Prerequisites ===
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{{note box| This page is now obsolete, kept for reference only. see [[SME Server:9.0|SME Server 9 Release Notes]]}}
* VIrtual machine (Vmware, Parallels or Virtualbox)
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* Centos Minimal 64-bit architecture. 32-bit may follow later
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* Access to EPEL, RPMForge and ATrpms repositories
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* Setting up a RPM Building environment
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=== Current status & tasks ===
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* Last update February 4, 2013
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Please add your name(s) next to the task you are working on.
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[[bugzilla:7240|Bug 7240 - SME 9 yum repos ]] & [[bugzilla:7273|Bug 7273]] How to remove the repo hacks <--- help needed to replicate findings and update wiki
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<strike>Identify all SME Server specific packages (John C.) See notes below.</strike>
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<strike>Setting up a RPM building environment (Ian W.)</strike>
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<strike>booting CentOS 6 with the SME packages installed. (Daniel)</strike>
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* Update fields in Bugzilla, currently all bugs are clean-up
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* Update [[Simple_Package_Modification|Simple package Modifications]] to show how to do this for SME 9 which requires COS6 as a base.
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* Identify which packages are pulled from ATRPMS/EPEL/RPMFORGE below, we need to move them into the base and stop pulling from those repos. [[bugzilla:7273|Bug 7273]] Greg Swallow & Shad
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* Create a SME 9 version of each needed package. See [[SME9BuildQueue|Packages to build for SME9]] to help. Shad, Ian, John, ???
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* Update SME Server documentation 'Administration Manual' (Stephane, Terry)
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* Getting organised for [[The_future_of_SME_Server|The Future of SME Server]] (John)
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* Create a guide for volunteers to submit patches and fix bugs
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* Create a list of worthwhile, but easy, bugs for new volunteers to practise on
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* Verify fixed bugs
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* Create list of bugs for development review, and a way to manage them.
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=== User Feedback ===
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Unstructured user feedback can be noted here: [[SME9DEV_user_feedback|SME9DEV user feedback]]. Issues that require developers attention should be logged in our Bug Tracker. (See below)
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=== Bugs ===
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[http://bugs.contribs.org/bugs/buglist.cgi?product=SME%20Server%209.X&component=Cleanup&resolution=--- Bug Tracker]
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[http://wiki.contribs.org/SME9BuildQueue#SME_9_Error_list_and_affected_packages SME 9 error list]
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=== Considerations ===
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* Primary and only goal for now is the transition of SME Server based on CentOS 5.8 to SME Server based on CentOS6.3
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* SysVinit is no longer the default with the release of RHEL6, beyond RHEL6 systemd will be used
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* perl has a new location of the filesystem. New: /usr/share/perl5/vendor_perl instead Old: /usr/lib/perl5/site_perl/
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* perl version 5.8.8 is the new default version on RHEL6. This requires a review of all the perl module rpms which are specific for perl 5.8.5
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== Installing CentOS 6 minimal ==
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First a few notes on CentOS 6 minimal, which is a bare bones install with very little on board. You can download a copy from one of the CentOS mirrors [http://www.centos.org/modules/tinycontent/index.php?id=30 here]
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* As per above note, only use Virtual Machine for testing purposes. A good free VM package can be obtained [https://www.virtualbox.org/wiki/Downloads here]
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* You might want to note down as much as possible so you yourself and others can reproduce the actions
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* Don't use yum with the '-y' flag (install/upgrade without further user interaction) when using the yum install/upgrade commands. (beware copy/paste yum commands)
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* you might want to note down all packages listed by yum to be installed/upgraded AND their dependencies
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* Make regular snapshots of your Virtual Machine and describe them specifically. At least when you've reached an important milestone for yourself
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==== Installing the ISO ====
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* Just install a minimal el6 installation (I just installed a few utilities like htop, screen, rsync, vim, openssh-clients mc etc…). You can use either the DVD, the minimal CD install, a net install with PXE, it's up to you
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* wellsi: I have used CentOS-6.3-x86_64-minimal.iso
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==== Enable networking ====
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Each boot you have to start the network etc etc. I decided it was better with the minimal install and touch as little as possible - if I could then get SME packages installed I could then use that to configure networking later.
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To start the networking
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<syntaxhighlight lang="Bash">
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./etc/sysconfig/network-scripts/ifup-eth eth0
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</syntaxhighlight>
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or
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<syntaxhighlight lang="Bash">
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dhclient eth0
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</syntaxhighlight>
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<div class="mw-collapsible mw-collapsed" data-collapsetext="Collapse" data-expandtext="More on networking">
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or if you want to assign a specific IP address (e.g. 192.168.1.2).
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<syntaxhighlight lang="Bash">
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ifconfig eth0 192.168.1.2
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echo "nameserver 192.168.1.254" >> /etc/resolv.conf
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route add default gw 192.168.1.254 eth0
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</syntaxhighlight>
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To make your changes permanent you will need to edit the configuration file to make it active on boot. There is only the vi text editor, you can also install nano.
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<syntaxhighlight lang="Bash">
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yum install nano
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nano /etc/sysconfig/network-scripts/ifcfg-eth0
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</syntaxhighlight>
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and set ONBOOT=”YES”
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</div>
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==== Enable SSH ====
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SSH is present but is disabled at this stage. To enable ssh issue:
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<syntaxhighlight lang="Bash">
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service sshd start
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</syntaxhighlight>
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==== Disable SELinux ====
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It will be easier to see what's going on (and turn off selinux at kernel level, just to be sure)
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<syntaxhighlight lang="Bash">
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sed -i -e 's/rhgb quiet/selinux=0/g' /boot/grub/grub.conf
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sed -i -e 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config
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</syntaxhighlight>
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==== Remove selinux-policy-targeted and authconfig ====
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They conflict with some e-smith/smeserver packages
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<syntaxhighlight lang="Bash">
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yum remove selinux-policy-targeted authconfig
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</syntaxhighlight>
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== Configure basic requirements ==
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==== Configure SME9 repositories ====
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See the folowing bugs tracking issues with repositories:
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* [[bugzilla:7294|Bug #7294: rpms that still need to be rebuilt or sourced for the SME9 repositories]]
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* [[bugzilla:7298|Bug #7298: Import perl-Unix-ConfigFile from rpmforge]]
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* [[bugzilla:7292|Bug #7292: more rpms in the SME8 repositories that have a lower version in our SME9 repositories]]
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<syntaxhighlight lang="Bash">
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yum install wget
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</syntaxhighlight>
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<syntaxhighlight lang="Bash">
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mkdir /tmp/repo.bak
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mv /etc/yum.repos.d/*.repo /tmp/repo.bak/
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wget -O /etc/yum.repos.d/sme9.repo http://bugs.contribs.org/attachment.cgi?id=3623
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</syntaxhighlight>
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==== Import needed GPG Keys ====
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<syntaxhighlight lang="Bash">
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rpm --import http://sme-mirror.firewall-services.com/releases/8/smeos/x86_64/RPM-GPG-KEY-SMEServer
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rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
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rpm --import https://fedoraproject.org/static/217521F6.txt
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rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5
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rpm --import http://www.salstar.sk/pub/yum/keys/RPM-GPG-KEY-Fedora-Pre-Extras
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</syntaxhighlight>
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==== Clean yum cache ====
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<syntaxhighlight lang="Bash">
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yum clean all
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</syntaxhighlight>
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==== Install e-smith and smeserver packages ====
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Now, you should be ready to install all the e-smith and smeserver packages (and their dependencies). This should pull about 400 packages
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<syntaxhighlight lang="Bash">
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yum install smeserver\* e-smith\* --enablerepo=smeos8,smeupdates8
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</syntaxhighlight>
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It should install the following packages and their dependancies. See [[#SME_Server_specific.2Frequired_packages|here]] how to retrieve a list of the required packages from an installed SME8 server.
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e-smith                     
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e-smith-LPRng               
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e-smith-apache               
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e-smith-backup               
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e-smith-devtools             
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e-smith-dynamicdns-dyndns   
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e-smith-dynamicdns-dyndns.org
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e-smith-dynamicdns-tzo       
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e-smith-dynamicdns-yi       
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e-smith-flexbackup           
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e-smith-horde               
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e-smith-hosts               
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e-smith-imp                 
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e-smith-ingo                 
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e-smith-ldap                 
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e-smith-lib-compspec         
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e-smith-mysql               
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e-smith-ntp                 
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e-smith-oidentd             
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e-smith-openssh             
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e-smith-php                 
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e-smith-pptpd               
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e-smith-proftpd             
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e-smith-proxy               
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e-smith-qmailanalog         
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e-smith-quota               
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e-smith-radiusd             
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e-smith-turba               
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e-smith-viewlogfiles         
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smeserver-release
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==== Move everything from rc7.d to rc4.d ====
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All the links in rc4.d should then point to e-smith-service
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<syntaxhighlight lang="Bash">
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rm -f /etc/rc4.d/*
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cp -a /etc/rc7.d/* /etc/rc4.d/
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</syntaxhighlight>
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==== Move some perl modules ====
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We need to copy some perl modules to a new directory, because @INC has changed in EL6:
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<syntaxhighlight lang="Bash">
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cp -a /usr/lib/perl5/site_perl/esmith/* /usr/share/perl5/vendor_perl/esmith
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</syntaxhighlight>
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==== Create a service entry for rsyslog ====
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We need to create a new service entry in the DB, because the standard syslog package is now rsyslog:
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<syntaxhighlight lang="Bash">
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/sbin/e-smith/db configuration set rsyslog service status enabled
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cp -a /etc/rc7.d/S05syslog /etc/rc4.d/S05rsyslog
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</syntaxhighlight>
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==== Run post-upgrade ====
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We can now try to post-upgrade
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<syntaxhighlight lang="Bash">
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/sbin/e-smith/signal-event post-upgrade
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/sbin/e-smith/signal-event reboot
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</syntaxhighlight>
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==== The system boots but completly broken :-) ====
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Ok, so the system should now boot, but is really not usable, after a quick look, at least the following doesn't work as expected:
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* The console on the first boot don't really work. It asks for the admin password (and BTW the password appears in cleartext) but it's all
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* <strike>No network interfaces are detected by the console menu (because kudzu is not installed, only available in SME repo, and require an older python which conflicts with the the one * from EL6)</strike>
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* slapd won't start
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* httpd won't start
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* squid won't start
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* manually running expand-template has no effect (and no error message is printed). But signal-event seems to work (files get expanded and services restarted)
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* as the network interface are not configured, all the services which requires the internel IP (or the external one) in their config (at least sshd squid and dnscache) won't start
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* <strike>qpsmtpd won't start (can't locate Qpsmtpd/TcpServer.pm in @INC)</strike>
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* There's probably a lot more which is not working
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== SME Server specific/required packages ==
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To get a list of all specific SME Server packages you can run:
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<syntaxhighlight lang="Bash">
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rpm -qa | grep 'smeserver\|e-smith'| sed -e 's/-[0-9].*//' | sort > smeserver-packages.txt
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</syntaxhighlight>
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== SME Server specific/required perl packages ==
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To get a list of the file names ''containing'' the string 'perl' on a running SME8 server.
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<syntaxhighlight lang="Bash">
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rpm -qa | grep perl | sed -e 's/-[0-9].*//' | sort
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</syntaxhighlight>
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or, as per suggestion on the lists (All files ''starting'' with the string 'perl')
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<syntaxhighlight lang="Bash">
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rpm -qa --qf '%{NAME}\n' name=perl\* | sort
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</syntaxhighlight>
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To export the list to a plain text file you could do:
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<syntaxhighlight lang="Bash">
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rpm -qa | grep perl | sed -e 's/-[0-9].*//' | sort > perl-list.txt
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</syntaxhighlight>
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perl-Digest-SHA Y
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perl Y
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perl-Archive-Tar Y
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perl-Authen-PAM ******
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perl-Authen-SASL Y
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perl-BSD-Resource ******
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perl-CGI-FormMagick ******
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perl-CGI-Persistent ******
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perl-Class-ParamParser ******
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perl-Clone Y
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perl-Compress-Raw-Bzip2 Y
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perl-Compress-Raw-Zlib         Y
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perl-Compress-Zlib     Y
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perl-Convert-ASN1     Y
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perl-Convert-BinHex Y
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perl-Convert-TNEF ******
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perl-Crypt-Cracklib ******
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perl-Crypt-OpenSSL-Bignum Y
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perl-Crypt-OpenSSL-Random Y
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perl-Crypt-OpenSSL-RSA Y
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perl-DateManip Y
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perl-DBD-MySQL Y
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perl-DBI Y
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perl-Digest-HMAC Y
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perl-Digest-SHA1 Y
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perl-Email-Date-Format Y
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perl-Encode-Detect Y
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perl-Error Y
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perl-File-MMagic ******
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perl-Geography-Countries ******
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perl-HTML-Parser Y
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perl-HTML-Tabulate ******
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perl-HTML-Tagset Y
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perl-I18N-AcceptLanguage ******
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perl-IO-Compress-Base Y
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perl-IO-Compress-Bzip2 Y
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perl-IO-Compress-Zlib Y
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perl-IO-Socket-INET6 Y
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perl-IO-Socket-SSL Y
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perl-IO-stringy Y
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perl-IO-Zlib Y
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perl-IP-Country ******
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perl-LDAP Y
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perl-libwww-perl Y
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perl-Locale-gettext ******
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perl-Mail-DKIM Y
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perl-Mail-RFC822-Address ******
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perl-Mail-SPF ******
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perl-MailTools Y
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perl-MIME-Lite Y
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perl-MIME-tools Y
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perl-Net-DNS Y
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perl-Net-Ident ******
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perl-Net-IP Y
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perl-Net-IPv4Addr ******
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perl-Net-SMTP-SSL Y
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perl-Net-SSLeay Y
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perl-NetAddr-IP Y
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perl-Object-Persistence ******
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perl-Package-Constants Y
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perl-Quota ******
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perl-Razor-Agent ******
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perl-RPM2 ******
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perl-Socket6 Y
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perl-suidperl Y
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perl-Test-Inline ******
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perl-Text-Iconv Y
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perl-Text-Template ******
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perl-Time-TAI64 ******
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perl-TimeDate Y
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perl-Unix-ConfigFile ******
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perl-URI Y
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perl-version Y
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perl-WWW-Automate ******
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perl-XML-NamespaceSupport Y
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perl-XML-Parser Y
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perl-XML-SAX Y
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I am now going to try and lob in the existing/missing el5 versions to see what happens. My guess is we will need to rebuild the required modules.
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== FormMagick ==
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Next will be an attack on FormMagick - there is no package in the default install so need to figure that out. In may indeed be horrible, but we can live with it for now.
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Hopefully with perl and FormMagick installed, most of the SME stuff *should* basically install.
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== Discussion, help and share ==
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* Please consult/subscribe to the devs list for more information. [http://lists.contribs.org/mailman/listinfo/devinfo devinfo mailinglist] and in particular all threads starting with " SME on CentOS 6"
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* There is a IRC channel where people who are interested in this effort 'hang out'. You're most welcome to drop by and/or join. It's free! ;-)
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** You do not have to install anything to pay the channel a visit. All you need is a nice nickname and right click [http://webchat.freenode.net?channels=SME_server&uio=Mj10cnVlJjk9dHJ1ZSYxMT03Mg13 here] to open the channel in a new browser window or tab.
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== Resources and references ==
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==== Kickstart file ====
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* A starting point can be found on the [[SME9_Kickstart| SME9 Kickstart]] page.
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==== Setting up a RPM Building environment under CentOS ====
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* [[Simple_Package_Modification|Simplest way to develop patches to submit]]
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* [[Setting_up_RPM_Building_for_SME_Server|Building using Mock]]
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* [[Package_Modification|Simple Package Modification]]
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* [http://wiki.centos.org/HowTos/SetupRpmBuildEnvironment On the CentOS wiki]
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* [http://docs.fedoraproject.org/en-US/Fedora_Draft_Documentation/0.1/html/RPM_Guide/index.html From the Fedora project]
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      +
----
    +
The [http://wiki.contribs.org/index.php?title=SME_on_CentOS_6&oldid=18561 previous] instructions on how to install SME packages on CentOS 6 minimal are now out of date, but are still available in the history [http://wiki.contribs.org/index.php?title=SME_on_CentOS_6&action=history archive].  Please see [[SME9Alpha | SME9Alpha]] for the latest development steps.
    +
The [http://wiki.contribs.org/index.php?title=SME_on_CentOS_6&oldid=18561 previous] version can be usefull as a starting point for:
 +
* Creating an OpenVZ template for SME
 +
* Building SME on other future CentOS versions
 +
* Building SME on CentOS like distros
    
<noinclude>[[Category:Howto]][[Category:SME9-Development]]
 
<noinclude>[[Category:Howto]][[Category:SME9-Development]]

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