Changes between Version 8 and Version 9 of Doc/TemplateCustom

Timestamp:

Sep 27, 2006, 2:47:02 PM (18 years ago)

Author:

/C=FR/O=CNRS/OU=UMR8607/CN=Michel Jouvin/emailAddress=jouvin@…

Comment:

--

Doc/TemplateCustom

@@ -89 +89 @@
 There are 2 possibilities to select the OS version used by a cluster or a specific node :
 
- * Define the OS version at the OS level : this is done by adding the appropriate path in {{{cluster.build.properties}}}. Look at the example above, in section [[wiki:Doc/TemplateCustom#ClustersandTemplateHierarchies Clusters and Template Hierarchies]]. Using this method, all the machines in the cluster MUST run the same OS version/architecture. This is the only method available for SL versions before SL 4.2.
+ * Define the OS version at the cluster level : this is done by adding the appropriate path in {{{cluster.build.properties}}}. Look at the example above, in section [[wiki:Doc/TemplateCustom#ClustersandTemplateHierarchies Clusters and Template Hierarchies]]. Using this method, all the machines in the cluster MUST run the same OS version/architecture. This is the only method available for SL versions before SL 4.2.
  * Define the OS version at the machine level : this is done by defining the appropriate PAN {{{loadpath}}} in the machine template. A cluster default can be defined in {{{pro_site_cluster_info.tpl}}} and a specific setting can be define in a machine profile to override this default. A template for OS selection is provided in LCG2 templates, in directory {{{os}}} (there is one template per OS version/architecture). This method allows to have different version/architecture combination into the same cluster. This is the recommended method for any cluster running SL4.
 
@@ -100 +100 @@
 
 With these entries, the cluster will use SL 3.05 i386 as the default OS version for the cluster but this is possible to override this in any machine templates, using the second method. This is the only possibility to have both SL3 and SL4 in the same cluster, as SL3 templates don't support the second method.
+
+
+=== Selecting Kernel Version ===
+
+Normally, standard templates provide an appropriate definition of the kernel number and variant (smp, hugemem...) according to hardware present (as declared in templates). If you want to override this default (used in particular to configure Grub), you can use the following variables :
+
+ * KERNEL_VERSION_NUM : this must contain the kernel version, as it is in the RPM name, without the architecture.
+ * KERNEL_VARIANT : `smp`, `hugemem`, `largesmp`... or nothing (empty string) for non smp kernel.