Difference between revisions of "UCS Appliance"

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{{Version|UCS=3.0}}
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This page has been moved to the official UCS Documentation page.
= Overview =
 
  
This documentation describes how to create an appliance based on UCS 3. It is recommended to use the latest UCS 3 version. The appliance mode can only configured on a Domaincontroller Master. Later in the configuration wizard it is possible to change the server role.
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[http://docs.univention.de/installation-4.0.html Extended installation documentation]
  
= Installation =
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[[Category:EN]]
 
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[[Category:Virtualisierung]]
While selecting the system role in UCS 3 Domaincontroller Master installation, F3 must be pressed. This will disable the join scripts. After the installation the system should be upgraded to the latest version, for example by running the following command as user root:
 
<pre>
 
univention-upgrade
 
</pre>
 
 
 
In UCS 3.0-2 are several fixes. Until this release is available it is possible to install the required packages from the scope ''system-setup3.0-1''. To activate this scope the following steps are required:
 
<pre>
 
ucr set repository/online/component/system-setup3.0-1=yes \
 
        repository/online/component/system-setup3.0-1/parts=unmaintained
 
univention-upgrade
 
</pre>
 
 
 
After that the package univention-system-setup-boot should be installed. There are three ways to configure the UCS system: local, remote or automatic.
 
 
 
== Local configuration ==
 
 
 
The local configuration will start a firefox session at the next boot. For this setup the access to the graphical console of the system is essential. In this session all requirements for the configuration will be asked and the system will be configured. To activate this mode univention-system-setup-boot can be installed by the following command:
 
<pre>
 
univention-install univention-system-setup-boot
 
</pre>
 
 
 
== Remote configuration ==
 
 
 
The remote configuration is necessary, when the access to the local console is not given. The configuration takes place in a remote web browser session. Therefore, the network address of the booting system must be known. Usually the X window system will be installed when univention-system-setup-boot is installed, this can be prevented by adding ''--no-install-recommends'' to the command. Additionally, the start of firefox should be prevented by disabling the UCR variable ''system/setup/boot/start'':
 
<pre>
 
univention-install univention-system-setup-boot --no-install-recommends
 
ucr set system/setup/boot/start="false"
 
</pre>
 
 
 
== Automatic configuration ==
 
 
 
An automatic configuration is possible by creating a profile file (''/var/cache/univention-system-setup/profile''). Here is an easy example for creating such a file and running setup-join.sh:
 
 
 
<pre>
 
cat > /var/cache/univention-system-setup/profile <<__HERE__
 
hostname="ucs"
 
domainname="testdom.local"
 
windows/domain="TESTDOM"
 
ldap/base="dc=testdom,dc=local"
 
root_password="univention"
 
 
 
components="univention-s4-connector:univention-samba4 univention-nagios-server"
 
packages_install="univention-s4-connector univention-samba4 univention-nagios-server"
 
packages_remove=""
 
 
 
# interfaces/eth0/type="dynamic"
 
interfaces/eth0/type=""
 
interfaces/eth0/address="10.201.101.2"
 
interfaces/eth0/netmask="255.0.0.0"
 
interfaces/eth0/network="10.0.0.0"
 
interfaces/eth0/broadcast="10.255.255.255"
 
dns/forwarder1="10.201.74.2"
 
gateway="10.201.0.1"
 
__HERE__
 
 
 
/usr/lib/univention-system-setup/scripts/setup-join.sh >>/var/log/univention/setup.log 2>&1
 
 
 
</pre>
 
 
 
= Preparing Amazon EC2 Images =
 
 
 
The easiest way is to install UCS into KVM with the raw image format for the harddisks, one for root and one for swap. As architecture is amd64 recommended. Amazon EC2 images must be configured with the remote or automatic mode, because the access to the local console is not given.
 
 
 
Amazon EC2 uses Xen, therefore the following changes are required after the installation, upgrade and configuration:
 
<pre>
 
# change from sda to xvda and re-configure grub
 
ucr set grub/root=/dev/xvda1
 
sed -i 's|/dev/sda1|/dev/xvda1|;s|/dev/sdb1|/dev/xvda3|' /etc/fstab
 
append="$(ucr get grub/append)"
 
ucr set grub/append="$(echo "$append" | sed -e 's|/dev/sda|/dev/xvda|g;s|splash|nosplash|')"
 
ucr set grub/grub1root="(hd0)"
 
univention-grub-generate-menu-lst
 
 
# generate all UMC languages
 
ucr set locale/default="en_US.UTF-8:UTF-8" locale="en_US.UTF-8:UTF-8 de_DE.UTF-8:UTF-8"; locale-gen
 
 
 
# SSH with authentication key will be used in EC2, so remove the root password
 
sed -i 's|root:[^:]*|root:|' /etc/shadow
 
 
 
# Activate EC2 mode
 
ucr set server/amazon=true
 
 
# Remove all local configured nameserver
 
ucr unset nameserver1 nameserver2 nameserver3
 
 
 
# Remove persistent net rule
 
rm /etc/udev/rules.d/70-persistent-net.rules
 
</pre>
 
 
 
= Preparing VMware Images =
 
 
 
== Installation ==
 
 
 
* Download and install the latest VMplayer version form [http://www.vmware.com http://www.vmware.com]
 
* Download the latest UCS installation ISO image for i386
 
* Start VMplayer and select "Create a New Virtual Machine"
 
* Select the downloaded UCS ISO image as disc image
 
* Select Linux as Guest Operating System and select "Other Linux 2.6.x kernel" as version
 
* The name should be the UCS version, for example "UCS 3.0-1"
 
* The disk size should be set to 8 GB and the option "Split virtual disk into multiple files" should be selected
 
* The memory should be set to 1 GB
 
* The followin values should be set during the installation:
 
** System language: ''English'' (default)
 
** Time zone: ''America/New_York'' (default)
 
** Keyboard layout: ''US american'' (default)''
 
** System role: ''Master domain controller'' + Disable join scripts by pressing F3
 
** Fully qualified domain name: ''ucsmaster.ucs.local''
 
** LDAP base: ''dc=ucs,dc=local'' (autofilled)
 
** Windows domain name: ''UCS'' (autofilled)
 
** Root password: univention
 
** Partitioning: ''Auto-Partitioning''
 
** Network:
 
*** IPv4 address: ''192.168.0.140''
 
*** Netmask: ''255.255.255.0''
 
*** IPv6 Gateway: ''192.168.0.240''
 
*** External name server: ''208.67.222.222''
 
** Software: ''default''
 
** Overview: Select ''Update system after installation'' (default)
 
 
 
== Configuration ==
 
 
 
The following changes are required after the installation and upgrade:
 
<pre>
 
# allow X11 login as normal user
 
ucr set 'auth/gdm/group/Domain Users=yes'
 
 
 
# Disable xorg autodetection and set resolution to 1024x768
 
ucr set xorg/autodetect=no xorg/device/driver=vmware xorg/resolution=1024x768
 
# generate all UMC languages
 
ucr set locale/default="en_US.UTF-8:UTF-8" locale="en_US.UTF-8:UTF-8 de_DE.UTF-8:UTF-8"; locale-gen
 
 
 
# Remove persistent net rule
 
rm -f /etc/udev/rules.d/70-persistent-net.rules
 
 
 
# For pre UCS 3.0-2 versions, activate system-setup3.0-1 scope
 
ucr set repository/online/component/system-setup3.0-1=yes \
 
        repository/online/component/system-setup3.0-1/parts=unmaintained
 
univention-upgrade
 
 
# install univention-system-setup-boot
 
univention-install univention-system-setup-boot
 
 
# Set a default NTP server
 
ucr set timeserver=pool.ntp.org
 
 
 
# Cleanup apt archive
 
apt-get clean
 
 
 
# Shutdown the system
 
halt -p
 
</pre>
 
 
 
* The ISO image should be removed from the VMware hardware settings.
 
* After that, the permissions of the files should be set to 755 and the vmware log files can be removed, for example:
 
<pre>
 
chmod -R 755 <directory of virtual machine>
 
rm <directory of virtual machine>/vmware*.log>
 
</pre>.
 
* Finally a ZIP archive should be created
 
<pre>
 
zip -r ucs-<version>-demo-image.zip <directory of virtual machine>
 
md5 ucs-<version>-demo-image.zip ucs-<version>-demo-image.zip.md5
 
</pre>
 

Latest revision as of 14:54, 18 February 2015

This page has been moved to the official UCS Documentation page.

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