Jul 28, 2007

Test your RAM: Using GRUB/LILO to load memtest86+ for testing RAM

Introduction
Memtest86+ is software designed to stress-test an x86-compatible computer's random access memory (RAM) for errors. It can run from a bootable floppy disk, CD-ROM, USB Drive, or from a suitable bootloader without an operating system present. Linux use GURB or LILO as bootloader ,so we can use them to load memtest86+ easily.

Prerequisite
1. Linux with GRUB or LILO.
2. memtest86+. info? / download

Load by GRUB
1. Extract memtest86+ archive to /boot :
$ cd /boot
$ sudo gzip -d memtest86+-1.70.bin.gz
$ sudo mv memtest86+-1.70.bin mt86p.bin
2. Edit /boot/grub/menu.lst , add follow entry :
title memtest86+
root (hd0,0)
kernel /mt86p.bin
savedefault
boot

note: root (hd0,0) mean /dev/hda1 is mounted on /boot , change to appropriate value , example : (hd0,1) for hda2 or (h1,3) for hdb4 etc.

Load by LILO
1. Extract memtest86+ archive to /boot :
$ cd /boot
$ sudo gzip -d memtest86+-1.70.bin.gz
$ sudo mv memtest86+-1.70.bin mt86p.bin
2. Edit /etc/lilo.conf add follow entry :
### LILO memory test section (memtest)
image = /boot/mt86p.bin
label = memtest86+

then run:
$ sudo /sbin/lilo

Linux with BadRAM
Linux system can reliably use a RAM module even if it has a few bad bits(BadRAM) by patching the Linux kernel in such a way that it can handle defective RAM modules. You can find it out here -> BadRAM: Linux kernel support for broken RAM modules.

*** May the force be with you,Good Luck!!!

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