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Does Grub2 support Memtest86+ iso files? If it's supported: How could I write a grub entry in grub.cfg in order to boot the Memtest86+ iso file?

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Grub doesn't support ISOs natively. Typical solution is to use GRUB to load a Linux install and use it's CDROM driver to load the ISO. – surfasb Nov 9 '11 at 17:57
up vote 2 down vote accepted

There are ways of adding ISO's to grub2 configurations. It is easier to use other options, however.

  1. Download memtest86+-4.20.bin (Latest as of 11/2011)
  2. Place it in your /boot partition. (Just like your Linux kernels)
  3. Add the following to /etc/grub.d/40_custom (It should be on three lines, like this)
menuentry "Memtest 86+" { 
linux16 /memtest86+.bin

Final. Update your grub and reboot

sudo grubupdate && sudo reboot
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gparted (which is something else you may want to have as a boot option) has a detailed explanation of how to add Grub2 menu entries of many of it's available builds (iso, vmlinux). – earthmeLon Nov 9 '11 at 18:11

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