Multiboot GRUB config

grub.cfg

# Config for GNU GRand Unified Bootloader (GRUB)
# /boot/grub/grub.cfg

# Timeout for menu
set timeout=30

# Default boot entry
set default=0
insmod part_gpt
insmod part_msdos
set imgdevpath="/dev/disk/by-uuid/UUID"

# Menu Colours
set menu_color_normal=light-gray/black
set menu_color_highlight=green/black

function load_video {
	if [ x$feature_all_video_module = xy ]; then
		insmod all_video
	else
		insmod efi_gop
		insmod efi_uga
		insmod ieee1275_fb
		insmod vbe
		insmod vga
		insmod video_bochs
		insmod video_cirrus
	fi
}

if loadfont unicode ; then
	set gfxmode=auto
	load_video
	insmod gfxterm
	set locale_dir=$prefix/locale
	set lang=en_US
	insmod gettext
fi

terminal_input console
terminal_output gfxterm


# Menu entries

menuentry "Tiny Core - Lite Linux" {
	set iso="/iso/TinyCore-current.iso"
	loopback loop $iso
	linux (loop)/boot/vmlinuz cde waitusb=5 iso=/mnt/sdb1$iso
	initrd (loop)/boot/core.gz
}

menuentry "Tiny Core Plus- Lite Linux" {
	set iso="/iso/CorePlus-current.iso"
	loopback loop $iso
	linux (loop)/boot/vmlinuz cde waitusb=5 iso=/mnt/sdb1$iso
	initrd (loop)/boot/core.gz
}

menuentry "TAILS - The Amnesic Incognito Live System" {
	set iso="/iso/tails-i386-1.5.1.iso"
	loopback loop $iso
	linux (loop)/live/vmlinuz boot=live config live-media=removable nopersistent noprompt quiet timezone=America/Toronto block.events_dfl_poll_msecs=1000 splash nox11autologin module=Tails findiso=$iso quiet_
	initrd (loop)/live/initrd.img
}

menuentry "Debian 8.2.0 i386 install" {
	set iso="/iso/debian-live-8.2.0-i386-standard.iso"
	loopback loop $iso
	linux (loop)/install/vmlinuz iso-scan/filename=$iso shared/ask_device=manual shared/enter_device=$imgdevpath no-prompt no-eject
	initrd (loop)/install/initrd.gz
}

menuentry "Debian 8.2.0 i386 live - user:live" {
	set iso="/iso/debian-live-8.2.0-i386-standard.iso"
	loopback loop $iso
	linux (loop)/live/vmlinuz2 boot=live components quiet splash toram=filesystem.squashfs findiso=$iso
	initrd (loop)/live/initrd2.img
}

menuentry "Debian 8.2.0 amd64 live - user:live" {
	set iso="/iso/debian-live-8.2.0-amd64-standard.iso"
	loopback loop $iso
	linux (loop)/live/vmlinuz boot=live components quiet splash toram=filesystem.squashfs findiso=$iso
	initrd (loop)/live/initrd.img
}

menuentry "Centos 7 Minimal - iso loop" {
	set iso="/iso/CentOS-7-x86_64-Minimal-1503-01.iso"
	loopback loop $iso
	linux (loop)/isolinux/vmlinuz ro liveimg quiet nodiskmount nolvmmount live_dir=/LiveOS
	linux (loop)/isolinux/initrd.img
}

menuentry "Linux Mint 17 xfce x86" {
    set iso="/iso/linuxmint-17.2-xfce-32bit.iso"
    loopback loop $iso
    set gfxpayload=keep
    linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$iso noprompt noeject quiet splash --
    #linux (loop)/casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper findiso=$iso quiet splash --
    initrd (loop)/casper/initrd.lz
}

menuentry "Linux Mint 17 xfce x86 (compatibility)" {
    set iso="/iso/linuxmint-17.2-xfce-32bit.iso"
    loopback loop $iso
    linux (loop)/casper/vmlinuz boot=casper xforcevesa iso-scan/filename=$iso ramdisk_size=1048576 root=/dev/ram rw noapic noapci nosplash irqpoll --
    #linux (loop)/casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper xforcevesa iso-scan/filename=${iso_path} ramdisk_size=1048576 root=/dev/ram rw noapic noapci nosplash irqpoll --
    initrd (loop)/casper/initrd.lz
}

menuentry "Ubuntu 14.04 Bloaty Buffalo x86" {
    set iso="/iso/ubuntu-14.04.3-desktop-i386.iso"
    loopback loop $iso
    linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$iso noprompt noeject quiet splash --
    initrd (loop)/casper/initrd.lz
}

menuentry "GParted" {
    set iso="/iso/gparted-live-0.23.0-1-i586.iso"
    loopback loop $iso
    linux (loop)/live/vmlinuz boot=live config union=aufs noswap noprompt ip=frommedia toram=filesystem.squashfs findiso=$iso
    initrd (loop)/live/initrd.img
}

menuentry "" {
	linux16 /boot/memtest86+-5.01.iso
}

menuentry "panic" {
	echo "System shutting down..."
	halt
}

menuentry "tl’dr" {
	echo "System rebooting..."
	reboot
}