Installing updates: OS, CAs, Quattor, VL-e
Installing OS updates comprises the following steps:
- Synchronization of the local mirror of the OS repository
- Generation of Quattor update templates
- Compilation and deployment
Synchronization of the local mirror
As user ndpfmgr at Quattor server stal, execute the script
This will synchronize the local OS mirror at host stal with the OS mirror at spiegel.
At the moment, the following distributions are mirrored:
- CentOS 3.9 i386
- CentOS 4.7 i386
- CentOS 4.7 x86_64
- CentOS 5.2 i386
- CentOS 5.2 x86_64
Generation of the OS update template for Quattor
At host stal using your personal account, run rpmUpdates.pl to generate an update template from the available OS updates:
$L/../bin/rpmUpdates.pl /project/mirror/centos/4.7/updates/i386/RPMS/ > /tmp/updates-centos47_i386.tpl
The generated template will contain only the last version of each package found in the update repository, except for the kernel packages, for which all versions are added. By convention, we want Quattor only to keep the installation of the currently running kernel and the desired new kernel version. The other modules should thus be removed by hand.
While editing the generated file, ensure that the template name is rpms/updates. Finally copy the edited file to $L/cfg/os/<distribution>/rpms/updates.tpl
If the target kernel version has changed, the value of the Pan variable KERNEL_VERSION_NUMBER has to be changed accordingly in the template $L/cfg/os/<distribution>/config/os/kernel_version_arch.tpl:
variable KERNEL_VERSION_NUMBER ?= "2.6.9-78.0.8.EL";
Compilation and Deployment
Perform a test compilation in your local environment and do not forget to refresh the repository templates:
makexprof -u -f itb
If this succeeds, commit the changes to SVN and follow the deployment procedure to install the updates.
Note: if a kernel update is installed, schedule a reboot of the node(s) to ensure that the desired kernel is loaded as soon as possible, to prevent surprises at a later stage.