Bug 832915

Summary:	RHEV-H restart twice during upgrade via RHEV-M or kernel command line.
Product:	Red Hat Enterprise Linux 6	Reporter:	cshao <cshao>
Component:	ovirt-node	Assignee:	Mike Burns <mburns>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	6.3	CC:	acathrow, bsarathy, gouyang, hadong, jboggs, leiwang, mburns, ovirt-maint, ycui, yuachen
Target Milestone:	rc	Keywords:	Regression
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-18 11:44:31 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 cshao 2012-06-18 07:59:41 UTC

Description of problem:
RHEV-H restart twice during upgrade via RHEV-M or kernel command line.

Version-Release number of selected component (if applicable):
rhev-hypervisor6-6.3-20120615.1.el6

How reproducible:
100%

Steps to Reproduce:
1. Install RHEV-H 6.2 GA version(rhevh-6.2-20111117.1.el6).
2. Upgrade from RHEV-H 6.2 GA to latest version via RHEV-M or kernel command line.
3. Focus on upgrade process.

Actual results:
1. RHEV-H restart twice during upgrade.
2. After the twice restart, rhevh will boot from backup menu direct, but boot failed as bug 827383 description.

============================================
Entering non-interactive startup
Starting ovirt-early: init: rc main process (1330) killed by TERM signal
Sending all processes the TERM signal... [ OK ]
Sending all processes the KILL signal... [ OK ]
Saving random seed: [ OK ]
Syncing hardware clock to system time [ OK ]
Turning off swap: [ OK ]
Unmounting file systems: [ OK ]
umount2: Device or resource busy
umount: /etc: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
umount2: Device or resource busy
umount: / dev / .initramfs/live: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fusRestarting system.
er(1))
umount2:


Expected results:
1. RHEV-H can boot to latest version after upgrade.
2. RHEV-H restart once during upgrade.

Additional info:
1. No such issue when upgrade from 6.2 GA to rhev-hypervisor6-6.3-20120606.3.el6, so it is a regression bug.
2. RHEV-H upgrade via TUI can successful and restart once.

Comment 3 Mike Burns 2012-06-18 11:44:31 UTC

This is (unfortunately) by design.  There is a limitation in the in-place upgrade that causes it to run all the code from the old version to do the upgrade.  To run custom upgrade logic that requires boot time changes (and can't be enabled/disabled during run-time), it needs to be run during the first boot after upgrade.  Since the changes require things to be set at boot time, the host is rebooted a second time.