Bug 875019

Summary:	Missing doc for local_boot_trigger kernel parameter in Hypervisor Deployment documentation
Product:	Red Hat Enterprise Linux 6	Reporter:	Attila Darazs <adarazs>
Component:	Documentation	Assignee:	Tahlia Richardson <trichard>
Status:	CLOSED CURRENTRELEASE	QA Contact:	ecs-bugs
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.3	CC:	jskeoch, mburns
Target Milestone:	rc	Keywords:	Documentation
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-26 00:24:10 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Attila Darazs 2012-11-09 10:39:24 UTC

Description of problem:
The local_boot_trigger kernel boot parameter is not described in the guide, although it exist according to RHEV-H developers.

Version-Release number of selected component (if applicable):
Missing from both RHEVH 5 and 6 guides.

Additional info:
This should be used to signal cobbler/foreman/other build systems that the installation succeeded.

(04:22:39 PM) mburns: in cobbler, we did that with "local_boot_trigger=<url_to_wget>"
(04:22:39 PM) mburns: adarazs: we have a script at the end of the installation that does wget $trigger_url -O /dev/null
(04:22:39 PM) mburns: where trigger_url == the value of local_boot_trigger
(04:29:11 PM) mburns: local_boot_trigger=http://cobbler/cblr/svc/op/nopxe/system/@HOSTNAME@
(04:29:11 PM) mburns: we substitute the actual hostname for @HOSTNAME@

But consult with the devs for exact description.

Also let me know if I need to open this for 5.x too.

Comment 3 Mike Burns 2012-11-14 12:48:28 UTC

Yes, this is supported.

local_boot_trigger=http://url/to/someplace

It is intended to be used with pxe Servers to disable PXE after installing correctly.  We run wget on the url and expect that it will disable the host in the PXE server so next boot will be from disk.