Reinstall grub on HP Smart Array

Hendrawan — Fri, 23 Apr 2010 09:34:43 +0000

Hi guys, long time no see. :d,
I want to share a triki or stupid trick on MBR problem.

Yesterday, I was fix a boot problem of HP Blade 460C with CentOS 5.4 i386 installed in my customer, some people in the Net fix that problem with reinstalling grub with grub-install command, I assume they have /dev/sda or /dev/hda on boot device, but since HP comes with RAID Controller (SMART ARRAY) hardware, the sda or hda seem not be use in here, because boot or any disk device come with /dev/cciss/c0d0.

So a workaround for solving this problem is just change boot device and device map on grub configuration.

See my old configuration bellow.

-/etc/grub.conf-------
# grub.conf generated by anaconda
#
#
#boot=/dev/sda
# default=0 # commented out by Proliant HBA install script
default=2
fallback=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
[...]

-/boot/grub/device.map----
# this device map was generated by anaconda
(hd4)     /dev/cciss/c0d0
(hd0)     /dev/sda

Now change "#boot=/dev/sda" with "boot=/dev/cciss/c0d0" in /etc/grub.conf
and "(hd0) /dev/sda" with "(hd0) /dev/cciss/c0d0" in /boot/grub/device.map

after that just running simple grub command bellow

bash> grub --batch --device-map=/boot/grub/device.map --config-file=/boot/grub/grub.conf
grub> root (hd0,0)
grub> setup (hd0)
grub> quit

Restart and hope this help

Linux System information

Hendrawan — Thu, 22 May 2008 03:51:54 +0000

System information

Show architecture of machine

bash> arch
i686

Show used kernel version(1)

bash> uname -r
2.6.9-67.0.15.ELsmp

bash> cat /proc/version
Linux version 2.6.9-67.0.15.ELsmp (mockbuild@builder10.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-9)) #1 SMP Thu May 8 10:52:19 EDT 2008

Show hardware system components(SMBIOS / DMI)

bash> dmidecode
# dmidecode 2.2
SMBIOS 2.3 present.
39 structures occupying 2026 bytes.
Table at 0×000F6024.
Handle 0×0000
DMI type 0, 19 bytes.
BIOS Information
Vendor: IBM
Version: -[BWE130AUS-1.11]-
Release Date: 10/25/2007
Address: 0xF0F40
Runtime Size: 61632 bytes
ROM Size: 4096 kB
[...]

Perform test reading on a hard-disk

bash> hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3704 MB in 2.00 seconds = 1852.28 MB/sec
Timing buffered disk reads: 172 MB in 3.40 seconds = 50.52 MB/sec

Show information CPU info

bash> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.80GHz
stepping : 10
cpu MHz : 3801.313
cache size : 2048 KB
[...]

Verify memory use

bash> cat /proc/meminfo
MemTotal: 4150156 kB
MemFree: 548712 kB
Buffers: 21072 kB
Cached: 2650428 kB
SwapCached: 0 kB
[...]

Show file(s) swap

bash> cat /proc/swaps
Filename Type Size Used Priority
/dev/sda2 partition 5944040 0 -1

Show mounted file system(s)

bash> cat /proc/mounts
rootfs / rootfs rw 0 0
/proc /proc proc rw,nodiratime 0 0
none /dev tmpfs rw 0 0
/dev/root / ext3 rw 0 0
none /dev tmpfs rw 0 0
/proc /proc proc rw,nodiratime 0 0
[...]

Display PCI devices

bash> lspci -tv
-[0000:00]-+-00.0 Intel Corporation E7520 Memory Controller Hub
+-00.1 Intel Corporation E7525/E7520 Error Reporting Registers
+-03.0-[0000:04-06]–+-00.0-[0000:06]–+-01.0 QLogic Corp. ISP2312-based 2Gb Fibre Channel to PCI-X HBA
| | \-01.1 QLogic Corp. ISP2312-based 2Gb Fibre Channel to PCI-X HBA
| \-00.2-[0000:05]–+-01.0 Broadcom Corporation NetXtreme BCM5704S Gigabit Ethernet
| \-01.1 Broadcom Corporation NetXtreme BCM5704S Gigabit Ethernet
[...]

Show USB devices

bash> lsusb -tv
Bus# 2
`-Dev# 1 Vendor 0×0000 Product 0×0000
`-Dev# 2 Vendor 0×04b4 Product 0×5203
|-Dev# 3 Vendor 0×0644 Product 0×0000
`-Dev# 4 Vendor 0×04b4 Product 0×6830
Bus# 1
`-Dev# 1 Vendor 0×0000 Product 0×0000
[...]

Sys-Admin Information's » Linux

Reinstall grub on HP Smart Array

Linux System information

System information