1config BR2_PACKAGE_MEMTEST86 2 bool "memtest86" 3 depends on BR2_i386 || BR2_x86_64 4 help 5 Memtest86+ is a bootable standalone memory test program. 6 7 Buildroot does not support packages with a '+' sign in their 8 name, which explains why it is named memtest86 and not 9 memtest86+. 10 11 Memtest86+ is a utility designed to test whether your memory 12 is in working order. It repeatedly writes an enormous amount 13 of different patterns to all memory locations and reads them 14 back again and verifies whether the result of the read is the 15 same as what was written to memory. 16 17 Memtest86+ will only work on 32-bit or 64-bit x86 targets. It 18 boots and autodetects hardware. Refer README.md for boot 19 options. 20 21 It can be loaded and run either directly by a PC BIOS (legacy 22 or UEFI) or via an intermediate bootloader that supports the 23 Linux 16-bit, 32-bit, 64-bit, or EFI handover boot protocol. 24 25 It can be added to the grub2 boot menu by adding the following 26 lines to the bottom of grub.cfg 27 28 Example for legacy BIOS using the Linux 16-bit boot protocol, 29 with built-in support for USB keyboards or running on a serial 30 line: 31 32 menuentry "Start Memtest86+ (USB keyboards)" { 33 linux16 /boot/memtest.bin keyboard=both 34 } 35 menuentry "Start Memtest86+ (serial line)" { 36 linux16 /boot/memtest.bin console=ttyS0,115200 37 } 38 39 Or for UEFI BIOS using the Linux 32-bit or 64-bit boot 40 protocols, using USB keyboard: 41 42 menuentry "Start Memtest86+ (USB keyboards)" { 43 linux /EFI/BOOT/memtest.efi keyboard=both 44 } 45 46 Other boot loaders will have similar requirements. 47 48 http://www.memtest.org 49