Bug 732481

Summary:	(Netapp CQ206802) LPe1205-CIOv unable to boot from RHEL 6.1 SAN LUN using Legacy (HBA BIOS) and DMMP
Product:	Red Hat Enterprise Linux 6	Reporter:	Ian Jackson <jaci>
Component:	grub	Assignee:	Peter Jones <pjones>
Status:	CLOSED NOTABUG	QA Contact:	Release Test Team <release-test-team>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	6.1	CC:	xdl-apbu-iop-bz
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-08-31 21:10:12 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Ian Jackson 2011-08-22 15:46:54 UTC

Description of problem:
An 80 GB LUN is mapped to the the HX5 Blade. The LPe1205-CIOv BIOS is configured to detect the LUN. During the RHEL 6.1 install, multi-path device is selected allowing DMMP to manage the SAN boot LUN. After the installation is complete, the host fails to boot from the LUN.

Version-Release number of selected component (if applicable):
RHEL 6.1 (grub version 0.97)

How reproducible:
Every time

Steps to Reproduce:
1. Create 80 GB LUN.
2. Map the LUN to HX5 x-series blade.
3. Add Legacy Only to the top of the boot selection list.
4. Boot the installation CD, select the mapped LUN listed as an MPATH device to install to.
5. Complete installation, and click Reboot to restart the host and perform the first boot setup.

Actual results:
The host fails to boot after successful install, instead displaying the flashing "no disk" error screen.

Expected results:
The host boots from the SAN LUN and the RHEL 6.1 first boot screen appears allowing the user to finish the initial setup.

Additional info:

I have attempted this process half a dozen times with the LUN on both the A and B paths, with the A path HBA BIOS (port 1) enabled only, B path BIOS (port 2) enabled only, and both HBA port A and B BIOS enabled with no change in Actual Results. As the UEFI boot mode does also not work in this setup, there is no way to SAN boot this setup at present.
See RedHat Bugzilla for the UEFI issue (BG691794)

HBA Info:
Model Name: LPe1205-CIOv (Tetra 8GB)
Model Desc: Emulex LPe1205-CIOv 8Gb 2-port PCIe Fibre Channel Adapter
Driver Ver: Emulex LightPulse Fibre Channel SCSI driver 8.3.5.30.1p
Firmware Ver: 1.11A9 (U3F1.11A9), sli-3
Bios Version: 5.11x3

Blade Info:
Model: HX5
FW/BIOS HIE160BUS
Blade Sys Mgmt Processor YUOOB7C
FPGA HIUD30L

Switch Info:
A-Path: Brocade 8 GB FC Blazer (PN 44X1920) (FW: 7.10.1.20.0)
B-Path: QLogic 8GB FC Cobra (PN 44X1905) (FW: 6.3.2b)

Comment 2 Ian Jackson 2011-08-31 21:10:12 UTC

This Bug can be closed.  Turned out to be a setup issue.
The HBA was presenting the boot LUN to the host as a hard disk, but the boot menu had no hard disks assigned to it, the host was unable to boot.  Once hard disk [0] was added to the boot list, the host was able to boot from the SAN LUN.