Bug 1413783

Summary:	RHEL4 installation hangs on OpenStack instances, due to RHEL4 not obeying DHCP option 26 for MTU
Product:	[Retired] Beaker	Reporter:	Dan Callaghan <dcallagh>
Component:	general	Assignee:	Dan Callaghan <dcallagh>
Status:	CLOSED CURRENTRELEASE	QA Contact:	tools-bugs <tools-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	develop	CC:	dcallagh, mjia, rjoost
Target Milestone:	24.0	Keywords:	Patch
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2017-02-09 09:16:52 UTC	Type:	Bug
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Dan Callaghan 2017-01-17 00:01:11 UTC

Description of problem:
Similar problem to what we hit with ipxe, which also doesn't (didn't) obey option 26. The installation starts but then times out fetching the kickstart because the inbound packets dropped, due to having a TCP MSS greater than the MTU of the virtual network (1400 in our case).

Version-Release number of selected component (if applicable):
unreleased develop 608161a (24.0 candidate)

How reproducible:
easily

Steps to Reproduce:
1. configure OpenStack integration on your account
2. run a RHEL4 recipe

Actual results:
Beaker creates an OpenStack instance and runs the RHEL4 installer on there. But it will hit EWD with Anaconda prompting for a language (that means it didn't fetch the kickstart).

Expected results:
should work

Additional info:
RHEL4 dhcp client does not request option 26 nor honour it when sent. MTU always defaults to 1500. Can't change RHEL4 now so we will just need to exclude it from OpenStack.

Comment 1 Dan Callaghan 2017-01-18 03:21:22 UTC

https://gerrit.beaker-project.org/5592

Comment 2 Dan Callaghan 2017-02-09 09:16:52 UTC

This was actually included with Beaker 24.0.