A 2nd objective would be to allow disk partitioning to be specified as a
variable associated with a node group, and not hard coded into the kickstart
template. Kickstart could select the appropriate partitioning include file,
based on the value of this variable.
Ideally we'd be able to use the same kickstart file with nodes with different
disk configurations, and then use a separate "partitioning-specifc" node group
to specify the partitioning variable.
There might be different partitioning schemes for WSs with 1, 2, 4 disks, etc,
if the disk partitioning could be specified independently of the "ws" node
profile, only one Kickstart template would be needed.
Otherwise each combination of "node type" and "disk configuration" requires a
separate profile/kickstart template, which would be more difficult to maintain.
BTW: Here's the error that's displayed when current_osimage is assigned a
value:
[root@drdkvm0003 dump1]# chdef -t group -o cm-0.0
noderes.current_osimage="repo-c6desres repo-anton-v2"
Error: 'noderes.current_osimage' is not a valid attribute name for for an
object type of 'group'.
Error: Skipping to the next attribute.
Error: One or more errors occured when attempting to create or modify xCAT
object definitions.
Thanks,
Goran
From: Pocina, Goran
Sent: Friday, August 17, 2012 10:56 AM
To: [email protected]
Subject: [xcat-user] Adding noderes.current_osimage to valid attributes for
"group" and "node" objects
Is it possible for users to add existing DB attributes to the list of valid
attributes for the "group" or "node" objects?
For example, noderes.current_osimage and noderes.next_osimage are defined in
the schema, and described by the "noderes" man page as "not currently used".
We'd like to use one of these fields to pass as a variable to the Kickstart
template (by also adding it in the site table), so the kickstart file can
determine at install time which version of a repo to use for the install.
We maintain our in-house software in a separate repos from which frequent
snapshots are taken. These snapshots are accessible by the MN http server.
The ultimate goal is to be able to switch a node from one version of the
software, to another, by only changing its node group, and, to avoid having to
maintain a separate Kickstart template and profile for each unique version of
software.
Is this possible?
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