Grub 2 how boot .iso with memdisk?

[Дмитрий Чепуровский]

I'm trying to boot iso file. I want to boot ubuntu 15.10 iso & Windows
10 Install iso. I found in google, that it could be made in grub2
using memdisk.

For test I'm trying to boot with memtest ubuntu-15.10-desktop-amd64.iso.

cfg test menuentery:
menuentry "Test1" {
    insmod memdisk
    initrd /iso/ubuntu-15.10-desktop-amd64.iso
}

When I tied to run this I got alloc magic is broken at 0xc7ed5060: c7e5c980

What I'm doing wrong. How can I do this?