Difference between revisions of "Memtest86"
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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. | $ '''wget http://www.memtest86.com/memtest86-3.5.tar.gz''' | ||
$ tar xfvz memtest86-3. | $ '''tar xfvz memtest86-3.5.tar.gz''' | ||
$ cd memtest86-3. | $ '''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 | 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 | Finally, you have to build coreboot with Memtest86 as payload: | ||
$ cd .. | $ '''cd ..''' | ||
$ svn co svn://coreboot.org/ | $ '''svn co svn://coreboot.org/coreboot/trunk coreboot''' | ||
$ cp memtest86-3. | $ '''cp memtest86-3.5/memtest coreboot/payload.elf''' | ||
$ cd coreboot | $ '''cd coreboot''' | ||
$ make menuconfig | $ '''make menuconfig''' | ||
Now enter the '''Payload''' menu and select '''Payload type''' and then '''An ELF executable payload file'''. | 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''' | 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 | |||
== Ready-made QEMU image == | == Ready-made QEMU image == | ||
Please follow [ | 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
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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