Difference between revisions of "Memtest86"

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(Memtest86+ requires an i386 libc)
 
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'''[http://www.memtest86.com/ Memtest86]''' is a program which checks your RAM modules.
 
'''[http://www.memtest86.com/ Memtest86]''' is a program which checks your RAM modules.
  
It can be run from within GRUB, but also as a coreboot payload (i.e. included in your ROM chip).
+
It can be run from within GRUB, but also as a coreboot [[Payloads|payload]] (i.e. included in your ROM chip).
  
 
== Building  ==
 
== Building  ==
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=== Memtest86 ===
 
=== Memtest86 ===
  
  $ mkdir foo
+
  $ '''mkdir foo'''
  $ cd foo
+
  $ '''cd foo'''
  $ wget http://www.memtest86.com/memtest86-3.4.tar.gz
+
  $ '''wget http://www.memtest86.com/memtest86-3.5.tar.gz'''
  $ tar xfvz memtest86-3.4.tar.gz
+
  $ '''tar xfvz memtest86-3.5.tar.gz'''
  $ cd memtest86-3.4
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  $ '''cd memtest86-3.5'''
 
(Optional: edit '''config.h''' and set '''#define SERIAL_CONSOLE_DEFAULT 1''' for serial support)
 
(Optional: edit '''config.h''' and set '''#define SERIAL_CONSOLE_DEFAULT 1''' for serial support)
  $ make
+
  $ '''make'''
  
The file '''memtest''' is your final payload which you can use with coreboot (v2 or v3), either on real hardware or in a QEMU image.
+
The file '''memtest''' is your final payload which you can use with coreboot, either on real hardware or in a [[QEMU]] image.
 +
 
 +
=== Memtest86+ ===
 +
Prerequisite: on non-i386 hosts be sure to have the i386 libc installed (e.g. libc6-dev-i386).
 +
$ '''wget http://www.memtest.org/download/4.20/memtest86+-4.20.tar.gz'''
 +
$ '''tar xfvz memtest86+-4.20.tar.gz'''
 +
$ '''cd memtest86+-4.20'''
 +
(Optional: edit '''config.h''' and set '''#define SERIAL_CONSOLE_DEFAULT 1''' for serial support)
 +
$ '''make'''
  
 
=== coreboot ===
 
=== coreboot ===
  
Finally, you have to build coreboot (v3 in this example) with Memtest86 as payload:
+
Finally, you have to build coreboot with Memtest86 as payload:
  
  $ cd ..
+
  $ '''cd ..'''
  $ svn co svn://coreboot.org/repository/coreboot-v3
+
  $ '''svn co svn://coreboot.org/coreboot/trunk coreboot'''
  $ cp memtest86-3.4/memtest coreboot-v3/payload.elf
+
  $ '''cp memtest86-3.5/memtest coreboot/payload.elf'''
  $ cd coreboot-v3
+
  $ '''cd coreboot'''
  $ make menuconfig
+
  $ '''make menuconfig'''
  
Now enter the '''Payload''' menu and select '''Payload type''' and then '''An ELF executable payload file'''. Now exit the menu, save your settings, and build coreboot:
+
Now enter the '''Payload''' menu and select '''Payload type''' and then '''An ELF executable payload file'''. Then, exit the menu, save your settings, and build coreboot:
  
  $ make
+
  $ '''make'''
  
The file '''build/coreboot.rom''' (or '''build/bios.bin''') is your final coreboot v3 image, which also contains the payload.
+
The file '''build/coreboot.rom''' is your final coreboot image, which also contains the payload.
  
 
== Running Memtest86 in QEMU ==
 
== Running Memtest86 in QEMU ==
  
For running the coreboot+Memtest86 image in QEMU, you need a patched version of '''vgabios-cirrus.bin''' in your '''build''' directory first:
+
For running the coreboot+Memtest86 image in [[QEMU]], you need a patched version of '''vgabios-cirrus.bin''' in your '''build''' directory first:
  
  $ cd build
+
  $ '''cd build'''
  $ wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip
+
  $ '''wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip'''
  $ unzip Vgabios-cirrus.zip
+
  $ '''unzip Vgabios-cirrus.zip'''
  $ cd ..
+
  $ '''cd ..'''
  
You can now run coreboot and Memtest86 in QEMU:
+
You can now run coreboot and Memtest86 in [[QEMU]]:
  
  $ qemu -L build -hda /dev/zero -serial stdio
+
  qemu -L build -hda /dev/zero -serial stdio
  
 
== Ready-made QEMU image ==
 
== Ready-made QEMU image ==
  
Please follow [http://www.coreboot.org/QEMU#coreboot_v3_.2B_Memtest86 these instructions] if you want to try out coreboot and Memtest86 in [[QEMU]].
+
Please follow [[QEMU#coreboot_v3_.2B_Memtest86|these instructions]] if you want to try out coreboot and Memtest86 in [[QEMU]].
  
 
{{PD-self}}
 
{{PD-self}}

Latest revision as of 20:55, 9 October 2012

The Memtest86 payload.

Memtest86 is a program which checks your RAM modules.

It can be run from within GRUB, but also as a coreboot payload (i.e. included in your ROM chip).

Building

Memtest86

$ mkdir foo
$ cd foo
$ wget http://www.memtest86.com/memtest86-3.5.tar.gz
$ tar xfvz memtest86-3.5.tar.gz
$ cd memtest86-3.5

(Optional: edit config.h and set #define SERIAL_CONSOLE_DEFAULT 1 for serial support)

$ make

The file memtest is your final payload which you can use with coreboot, either on real hardware or in a QEMU image.

Memtest86+

Prerequisite: on non-i386 hosts be sure to have the i386 libc installed (e.g. libc6-dev-i386).

$ wget http://www.memtest.org/download/4.20/memtest86+-4.20.tar.gz
$ tar xfvz memtest86+-4.20.tar.gz
$ cd memtest86+-4.20

(Optional: edit config.h and set #define SERIAL_CONSOLE_DEFAULT 1 for serial support)

$ make

coreboot

Finally, you have to build coreboot with Memtest86 as payload:

$ cd ..
$ svn co svn://coreboot.org/coreboot/trunk coreboot
$ cp memtest86-3.5/memtest coreboot/payload.elf
$ cd coreboot
$ make menuconfig

Now enter the Payload menu and select Payload type and then An ELF executable payload file. Then, exit the menu, save your settings, and build coreboot:

$ make

The file build/coreboot.rom is your final coreboot image, which also contains the payload.

Running Memtest86 in QEMU

For running the coreboot+Memtest86 image in QEMU, you need a patched version of vgabios-cirrus.bin in your build directory first:

$ cd build
$ wget http://www.coreboot.org/images/0/0d/Vgabios-cirrus.zip
$ unzip Vgabios-cirrus.zip
$ cd ..

You can now run coreboot and Memtest86 in QEMU:

qemu -L build -hda /dev/zero -serial stdio

Ready-made QEMU image

Please follow these instructions if you want to try out coreboot and Memtest86 in QEMU.

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