My own configuration file for GRUB2 to boot various live distributions of Linux-based operating systems, along with some system tools. I tried to include a lot of sample configuration entries, even if I don't currently use them, so it may help others. Exceedingly long blog post: http://tehfishyblog.logdown.com/chips/306146-a-homemade-ultimate-bo…

grub.cfg

# Config for GNU GRand Unified Bootloader (GRUB) (2)
# /boot/grub/grub.cfg
# or
# /boot/grub2/grub.cfg


# This grub.cfg file was created by Lance http://www.pendrivelinux.com
# Suggested Entries and the suggestor, if available, will also be noted.
# and then improved by Pysis.

# Improvement Sources:
#   https://www.pendrivelinux.com/boot-multiple-iso-from-usb-via-grub2-using-linux/
#  Used GRUB2 with command `grub2-install` instead, along with the `--boot-directory` parameter.
#   If you get an error about failing 'to get a canonical path', or folders not existing on the device, then again, you need to run the command as a privileged user.
#       If you get errors concerning a bad superblock, and unable to install grub, try rewriting the filesystem again.
#   https://gist.github.com/jamiekurtz/26c46b3e594f8cdd453a
#   https://gist.github.com/noisufnoc/e0053d738f5fbb679535
#   https://gist.github.com/samdoran/90056b8e4a2aedc6a3e8
#   https://gist.github.com/yeahunter/9eca12b3db064e5dc23b
#   https://gist.github.com/jeekl/5564476
#   https://wiki.archlinux.org/index.php/Multiboot_USB_drive
#     and this one.  How did I forget about these!!!!
#   https://help.ubuntu.com/community/Grub2/ISOBoot/Examples
#     Seems to be a gold mine for my purposes!!
#   http://www.coreboot.org/GRUB2
#   http://www.backtrack-linux.org/forums/showthread.php?t=42722
#   http://www.linuxdevcenter.com/pub/a/linux/excerpts/9780596100797/kernel-boot-command-line-parameter-reference.html
#   https://wiki.archlinux.org/index.php/Grub2

# Notes:
#  - For variables, be sure to use double-quotes to have them actually resolve in the string.
#  - Need to re-declare variables inside sub-menus because they open a new "context"..... great..
#      Source: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1175127

# Linting:
#  - Make sure every 'submenu' command contains 3 periods at the end, connected to the main content string's last charcter

# TODO:
#  - Separate different types of booting options into more grub config files, if possible.  Look into it.

# Great GRUB2 Reference: http://www.dedoimedo.com/computers/grub-2.html

# Timeout for menu
set timeout=20

# Default boot entry
set default=0

set isoPath="/ISOs"
set linuxPath="$isoPath/Linux"
set toolPath="$isoPath/Tools"
set memdiskPath="/boot/memdisk"
set grub4dosPath="/boot/grub.exe"

# Menu Colours
set menu_color_normal=white/black
set menu_color_highlight=white/cyan

submenu "Local OS installations..." {

  submenu "Elementary OS..." {

    menuentry "Elementary OS on Disk" {
      set root=(hd0,msdos6)
      linux /boot/vmlinuz-3.2.0-88-generic root=/dev/sda6
      initrd /boot/initrd.img-3.2.0-88-generic
      boot
    }

    menuentry "Elementary OS on Disk; RO, Quiet, Splash" {
      set root=(hd0,msdos6)
      linux /boot/vmlinuz-3.2.0-88-generic root=/dev/sda6 ro quiet splash
      initrd /boot/initrd.img-3.2.0-88-generic
      boot
    }

    menuentry "Elementary OS on Disk; RO, Recovery, NoModeSet" {
      set root=(hd0,msdos6)
      linux /boot/vmlinuz-3.2.0-88-generic root=/dev/sda6 ro recovery nomodeset 
      initrd /boot/initrd.img-3.2.0-88-generic
      boot
    }
    
  }

}

submenu "Linux-based OS Live/Install Images..." {

  set isoPath="/ISOs"
  set linuxPath="$isoPath/Linux"

  ## Ubuntu-based distros
  
  menuentry "Elementary OS 20130810 x64" {
    set isofile="$linuxPath/elementaryos-stable-amd64.20130810.iso"
    loopback loop $isofile
    linux  (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile quiet splash --
    initrd  (loop)/casper/initrd.lz
  }
  menuentry "Linux Mint 17.2 x64" {
    set isofile="$linuxPath/linuxmint-17.2-mate-64bit.iso"
    loopback loop $isofile
    linux (loop)/casper/vmlinuz file=/cdrom/preseed/mint.seed boot=casper initrd=/casper/initrd.lz iso-scan/filename=$isofile noeject noprompt splash --
    initrd (loop)/casper/initrd.lz
  }
  
  submenu "Fedora..." {
    set isoPath="/ISOs"
    set linuxPath="$isoPath/Linux"

    # https://docs.fedoraproject.org/en-US/Fedora/19/html/Installation_Guide/ap-admin-options.html

    menuentry 'Fedora Workstation Live 64-bit 25 (1.3)' {
      set isofile="$linuxPath/Fedora-Workstation-Live-x86_64-25-1.3.iso"
      loopback loop "$isofile"
      linux (loop)/isolinux/vmlinuz root=live:CDLABEL=Fedora-WS-Live-25-1-3 iso-scan/filename="$isofile" rd.live.image quiet
      initrd (loop)/isolinux/initrd.img
    }

    menuentry 'Fedora Server 64-bit 25 (1.3) Doesn"t Work' {
      set isofile="$linuxPath/Fedora-Server-dvd-x86_64-25-1.3.iso"
      loopback loop "$isofile"
      linux (loop)/isolinux/vmlinuz inst.stage2=hd:LABEL=Fedora-S-dvd-x86_64-25 iso-scan/filename="$isofile" quiet
      initrd (loop)/isolinux/initrd.img
    }

    menuentry 'Fedora Workstation Live 64-bit 25 (1.3)' {
      set isofile="$linuxPath/Fedora-Workstation-Live-x86_64-25-1.3.iso"
      loopback loop "$isofile"
      linux (loop)/isolinux/vmlinuz inst.stage2=live:CDLABEL=Fedora-WS-Live-25-1-3 iso-scan/filename="$isofile" rd.live.image quiet
      initrd (loop)/isolinux/initrd.img
    }
  }
  
  submenu "(X/L)Ubuntu..." {
    set isoPath="/ISOs"
    set linuxPath="$isoPath/Linux"
  
    menuentry "Ubuntu 16.10 Minimal" {
      set isofile="$linuxPath/ubuntu-16.10-mini"
      loopback loop $isofile
      # linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile locale=en_US.UTF-8
      # linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile liveimg noprompt noeject quiet splash --
      linux (loop)/linux boot=casper iso-scan/filename=$isofile locale=en_US.UTF-8
      # initrd (loop)/casper/initrd.lz
      initrd (loop)/initrd.gz
    }
    menuentry "ubuntu-15.04-desktop-amd64" {
      set isofile="$linuxPath/ubuntu-15.04-desktop-amd64.iso"
      loopback loop $isofile
      linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile locale=en_US.UTF-8
      initrd (loop)/casper/initrd.lz
    }
    menuentry "ubuntu-16.10-server-amd64" {
      set isofile="$linuxPath/ubuntu-16.10-server-amd64.iso"
      loopback loop $isofile
      linux (loop)/install/vmlinuz boot=casper iso-scan/filename=$isofile locale=en_US.UTF-8
      initrd (loop)/install/initrd.gz
    }
  
    menuentry "Xbuntu 14.04 Beta - 64bit" {
      set isofile="$linuxPath/xubuntu-15.04-desktop-amd64.iso"
      loopback loop $isofile
      linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noprompt noeject splash --
      initrd (loop)/casper/initrd.lz
    }
  }
  
  ## Other desktop distros
  
#    submenu "Debian..." {
#      menuentry "Debian 7.0 Wheezy AMD64 Installer (netinst, firmware)" {
#        set isofile="$linuxPath/debian-7.0.0-amd64-firmware-netinst.iso"
#        loopback loop $iso
#        linux (loop)/install.amd/vmlinuz
#        initrd (loop)/install.amd/initrd.gz
#      }
#      
#      menuentry "Debian 7.0 Wheezy AMD64 Live system (GNOME, firmware/non-free)" {
#        set isofile="$linuxPath/debian-live-7.0.0-amd64-gnome-desktop+nonfree.iso"
#        loopback loop $iso
#        linux (loop)/live/vmlinuz boot=live
#        initrd (loop)/live/initrd.img
#      }
#    }

  ## Minimal resource-focused distros

  menuentry "CorePlus ISO" {
    set isofile="$linuxPath/CorePlus-current.iso"
    loopback loop $isofile
    #linux (loop)/boot/bzImage --
    linux (loop)/boot/vmlinuz --
    # Add ' loglevel=3 cde showapps desktop=flwm_topside' ?
    #initrd (loop)/boot/tinycore.gz
    initrd (loop)/boot/core.gz
  }
#    menuentry "CorePlus (Variant 2)" {
#      set isofile="$linuxPath/COREPLUS"
#      loopback loop $isofile
#      linux (loop)/boot/vmlinuz
#      initrd (loop)/boot/core.gz
#    }
# Will leave commented out and unused; Using CorePlus instead.
#    menuentry "Tinycore" {
#      set isofile="$linuxPath/TINYCORE"
#      loopback loop $isofile
#      linux (loop)/boot/vmlinuz
#      #linux (loop)/boot/vmlinuz quiet cde iso=/mnt/sd[x]X$isofile
#      #initrd (loop)/boot/tinycore.gz
#      initrd (loop)/boot/core.gz
#    }
  
  # Source: https://wiki.archlinux.org/index.php/Multiboot_USB_drive#Arch_Linux_monthly_release
  # Installing from USB: "You must specify the filesystem type for loop0"
  # - https://bbs.archlinux.org/viewtopic.php?id=212871
  # ~ https://bbs.archlinux.org/viewtopic.php?id=226410
  # https://askubuntu.com/questions/143718/mount-you-must-specify-the-filesystem-type#comment172573_143723
  
  # https://bbs.archlinux.org/viewtopic.php?pid=1620387#p1620387
  menuentry 'Arch Linux x64 2017-06-01' {
    set isofile="$linuxPath/archlinux-2017.06.01-x86_64.iso"
    loopback loop "$isofile"
    
    # Leftover, unused kernel boot options that may be helpful later on.
    # video=efifb fbdev noefi single
    # archisolabel=ARCH_201508
    # archisobasedir=arch
    # archisodevice=/dev/loop0
    
    linux (loop)/arch/boot/x86_64/vmlinuz img_dev=/dev/sda1 img_loop=$isofile earlymodules=loop
    initrd (loop)/arch/boot/x86_64/archiso.img
  }
  
  menuentry "CentOS 6 x86_64 minimal" {
    set isofile="$linuxPath/CentOS-7-x86_64-Minimal-1503-01.iso"
    loopback loop $isofile
    linux (loop)/isolinux/vmlinuz noeject inst.stage2=hd:LABEL=UNJEB:/$isofile
    initrd (loop)/isolinux/initrd.img
  }
  menuentry "CentOS 6 x86_64 minimal with basic video driver" {
    set isofile="$linuxPath/CentOS-7-x86_64-Minimal-1503-01.iso"
    loopback loop $iso
    linux (loop)/isolinux/vmlinuz noeject inst.stage2=hd:LABEL=UNJEB:/$isofile xdriver=vesa nomodset askmethod
    initrd (loop)/isolinux/initrd.img
  }
  
  menuentry "Damn Small Linux" {
    echo "Doesn't work yet"'!';
    # Maybe try this instead later: https://gist.github.com/oxplot/2041319
    #  set isofile="$linuxPath/..."
    linux16 /boot/bootdistro/damnsmall/isolinux/linux24 knoppix_dir=damnsmall ramdisk_size=100000 lang=en apm=power-off nomce noapic quiet BOOT_IMAGE=knoppix
    initrd16 /boot/bootdistro/damnsmall/isolinux/minirt24.gz
  }

  ## Administrative- / Recovery- focused distros
  
  # menuentry "Knoppix" {
  #   set isofile="$linuxPath/knoppix.iso"
  # }
  
  menuentry "Boot Finnix 109 (64-bit)" {
    set isofile="$linuxPath/finnix-111.iso"
    loopback loop $isofile
    linux (loop)/boot/x86/linux64 findiso=$isofile vga=791 nomodeset quiet --
    initrd (loop)/boot/x86/initrd.xz
  }
  menuentry "Boot Finnix 109 (64-bit, text mode)" {
    set isofile="$linuxPath/finnix-111.iso"
    loopback loop $isofile
    linux /boot/x86/linux64 findiso=$isofile vga=normal nomodeset quiet --
    initrd /boot/x86/initrd.xz
  }

  menuentry "GRML - the sysadmins best friend" {
    set isofile="$linuxPath/grml96-full_2014.11.iso"
    loopback loop "$isofile"
    set root=(loop)
    configfile /boot/grub/loopback.cfg
  }
  
  # https://github.com/grml/grml-live/blob/3ac646b41e6ce3aa58ff914bf2ba5d52d157d125/templates/boot/grub/%25SHORT_NAME%25_default.cfg
  menuentry "grml64-full - copy Grml to RAM" {
    set isofile="$linuxPath/grml96-full_2014.11.iso"
    loopback loop "$isofile"
    set root=(loop)
    set gfxpayload=keep
    echo 'Loading kernel...'
    linux  (loop)/boot/grml64full/vmlinuz apm=power-off boot=live   nomce net.ifnames=0  "${loopback}" "${kernelopts}" toram=grml64-full.squashfs live-media-path="(loop)/live/grml64-full/" bootid=0fdfb62c-40af-40b9-9387-014232eb1f74  
    echo 'Loading initrd...'
    initrd (loop)/boot/grml64full/initrd.img
  }

  ## Pentesting distros

  menuentry "kali-linux-1.1.0a-amd64" {
    set isofile="$linuxPath/kali-linux-1.1.0a-amd64.iso"
    loopback loop $isofile
    linux (loop)/live/vmlinuz boot=live findiso=$isofile noconfig=sudo username=root hostname=kali
    initrd (loop)/live/initrd.img
  }
# Will leave commented out and unusued, but still referenced; Using Kali instead.
#    menuentry "BackTrack 5" {
#      loopback loop /BT5-GNOME-64.iso
#      linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/BT5-GNOME-64.iso noeject noprompt splash --
#      initrd (loop)/casper/initrd.lz
#    }

  ## Anonymous distros

  menuentry "TAILS - The Amnesic Incognito Live System" {
    set isofile="$linuxPath/tails-i386-0.17.2.iso"
    loopback loop $isofile
    linux (loop)/live/vmlinuz boot=live config live-media=removable nopersistent noprompt quiet timezone=America/New_York block.events_dfl_poll_msecs=1000 splash nox11autologin module=Tails findiso=$isofile quiet_
    initrd (loop)/live/initrd.img
  }
}

submenu "Utils..." {

  set isoPath="/ISOs";
  set toolPath="$isoPath/Tools";
  set memdiskPath="/boot/memdisk";


  set oldMemtestPath="$toolPath/Memtest86-4.3.7.iso"; # I keep this around for some reason.  Something about a major version difference.  Compatibility maybe? MBR?
  set memtestPath="$toolPath/Memtest86-7.3.iso";
  menuentry "Memtest 86+" {
    set isofile="$memtestPath"
    loopback loop "$isofile"
    linux16 (loop)/isolinux/memtest iso-scan/filename="$isofile"
  }

  submenu "SpinRite..." {
    set isoPath="/ISOs";
    set toolPath="$isoPath/Tools";
    set memdiskPath="/boot/memdisk";
  
    menuentry "SpinRite 6.0 (raw)" {
      set isofile="$toolPath/SpinRite 6.0/SpinRite.img"
      set gfxpayload=text
      linux16 "$memdiskPath" raw
      initrd16 "$isofile"
    }
    # Source: http://codeverge.com/grc.techtalk.linux/grub-booting-spinrite-image-got-it-working/1617093
    menuentry "SpinRite 6.0 (bigraw)" {
      set isofile="$toolPath/SpinRite 6.0/SpinRite.img"
      set gfxpayload=text
      linux16  "$memdiskPath" bigraw
      initrd16 "$isofile"
    }
  }
  
  # If I want direct access to TestDisk/PhotoRec, maybe look into bundling FreeDOS to run them: http://www.cgsecurity.org/wiki/Create_a_TestDisk_FreeDos_LiveCD
   
  # Source: https://help.ubuntu.com/community/Grub2/ISOBoot/Examples#Gparted
  menuentry 'GParted 64-bit ISO' {
    #set gfxpayload=text # ~= vga='normal'
    # isofile_abspath is relative to LiveUSB root.
    set isofile_abspath="$toolPath/gparted-live-0.28.1-1-amd64.iso"
    # isofile_devpath is relative to (and begins with) '/dev'
    set isofile_devpath="${devroot}${isofile_abspath}"
    # "mount" the ISO
    loopback loop "(${root})${isofile_abspath}"
    # Following (single!) line adapted from https://wiki.archlinux.org/index.php/Multiboot_USB_drive#GParted_Live
    linux '(loop)/live/vmlinuz' boot='live' union='overlay' username='user' config components noswap noeject toram='filesystem.squashfs' ip='' nosplash findiso="${isofile_abspath}"
    # start RAMdisk from device=loop
    initrd '(loop)/live/initrd.img'
  }
  
  #menuentry "Parted Magic" {
  #  set isofile="$toolPath/pmagic.iso"
  #  loopback loop $isofile
  #  linux (loop)/pmagic/bzImage iso_filename=$isofile edd=off load_ramdisk=1 prompt_ramdisk=0 rw gfxpayload=800x600x16 loglevel=9 max_loop=256 vmalloc=384MiB keymap=dvorak
  #  initrd (loop)/pmagic/initrd.img
  #}
  
  menuentry "SystemRescueCd" {
    set isofile="$toolPath/systemrescuecd-x86-4.5.3.iso"
    loopback loop "$isofile"
    # linux (loop)/isolinux/rescuecd isoloop"=$isofile" setkmap=us docache dostartx
    # Or linux (loop)/isolinux/rescue32
    # Or linux (loop)/isolinux/rescue64
    linux (loop)/isolinux/rescue64 isoloop="$isofile" setkmap=us docache dostartx
    initrd (loop)/isolinux/initram.igz
  }
  
  menuentry "CloneZilla" {
    set isofile="$toolPath/clonezilla-live-2.5.0-25-amd64.iso"
    loopback loop "$isofile"
    # linux (loop)/live/vmlinuz boot=live live-config union=aufs nolocales noprompt gfxpayload=800x600x16 ip=frommedia findiso="$isofile"
    # initrd (loop)/live/initrd.img
    
    # linux (loop)/live/vmlinuz initrd=/live/initrd.img boot=live union=overlay username=user config components quiet noswap edd=on nomodeset locales= keyboard-layouts= ocs_live_run="ocs-live-general" ocs_live_extra_param="" ocs_live_batch="no" vga=788 ip= net.ifnames=0  nosplash i915.blacklist=yes radeonhd.blacklist=yes nouveau.blacklist=yes vmwgfx.enable_fbdev=1
    
    linux (loop)/live/vmlinuz
    initrd /live/initrd.img boot=live union=overlay username=user config components quiet noswap edd=on nomodeset locales= keyboard-layouts= ocs_live_run="ocs-live-general" ocs_live_extra_param="" ocs_live_batch="no" vga=788 ip= net.ifnames=0  nosplash i915.blacklist=yes radeonhd.blacklist=yes nouveau.blacklist=yes vmwgfx.enable_fbdev=1
  }
  # Source: https://askubuntu.com/a/880484
  menuentry "clonezilla" {
    set isofile="$toolPath/clonezilla-live-2.5.0-25-amd64.iso"
    loopback loop "$isofile"
    linux (loop)/live/vmlinuz boot=live components config findiso=$isofile ip=frommedia toram=filesystem.squashfs union=overlay username=user
    initrd (loop)/live/initrd.img
  }
  
  #menuentry "Ophcrack No Tables" {
  #  set isofile="$toolPath/ophcrack-notables.iso"
  #  set gfxpayload=text
  #  loopback loop $isofile
  #  linux (loop)/boot/bzImage root=/dev/null rw lang=en_US kmap=dvorak autologin iso-scan/filename=$isofile
  #  initrd (loop)/boot/rootfs.gz
  #}
  
  #menuentry "Ophcrack Vista/7 Tables" {
  #  set isofile="$toolPath/ophcrack-vistatables.iso"
  #  set gfxpayload=text
  #  loopback loop $isofile
  #  linux (loop)/boot/bzImage root=/dev/null rw lang=en_US kmap=dvorak autologin iso-scan/filename=$isofile
  #  initrd (loop)/boot/rootfs.gz
  #}
  
  #menuentry "DBAN ISO" {
  # set isofile="$toolPath/dban.iso"
  # loopback loop $isofile
  # linux (loop)/DBAN.BZI nuke="dwipe" iso-scan/filename=$isofile silent --
  #}
  
  #menuentry "PC-Doctor" {
  #  loopback loop /boot/iso/pcdd1780.iso
  #  linux (loop)/[BOOT]/Bootable_2.88M.img
  #}
  
  
  #menuentry "Boot Hardware Detection Tool from iso using memdisk 4.05" {
  #  linux16 $memdiskPath iso
  #  initrd16 /customboot/hdt.iso
  #}
  #menuentry "Free Dos from iso using memdisk 4.05" {
  #  set isofile="/OS/fdbasecd.iso"
  #  linux16 $memdiskPath iso
  #  initrd16 (hd0,6)$isofile
  #}

  # Source: dann.com.br...
  menuentry "Hiren's boot CD using grub.exe" {
    set dosGRUBPath="$grub4dosPath";
    set hbcdPath="$toolPath/HBCD";
    set menuLstPath="$hbcdPath/menu.lst";
    set isofile="$toolPath/Hiren's.BootCD.15.2.iso"
    linux16 "$dosGRUBPath" --config-file="find --set-root $menuLstPath; configfile $menuLstPath"
  }
  menuentry "Hiren's boot CD using memdisk 4.05" {
    set isofile="$toolPath/Hiren's.BootCD.15.2.iso"
    linux16 $memdiskPath iso
    initrd16 (hd0,6)$isofile
  }
  menuentry "Ultimate Boot CD iso using memdisk 4.05" {
    set isofile="$toolPath/UBCD4WinBuilder.iso"
    linux16 $memdiskPath iso
    initrd16 (hd0,6)$isofile
  }
  #menuentry "UBCD with MEMDISK" {
  #  set isofile="$toolPath/ubcd502.iso"
  #  linux16 $memdiskPath iso raw
  #  initrd $isofile
  #}
  #menuentry "UBCD with grub4dos" {
  #  set isofile="$toolPath/ubcd502.iso"
  #  linux16 "$grub4dosPath" --config-file="map (rd) (hd32); map --hook; root (hd32); chainloader (hd32);"
  #  initrd $isofile
  #}
}

menuentry "Scan for OS on internal HDD (Untested)" {
  insmod regexp
  insmod ahci
  insmod part_msdos
  for x in (ahci0,*) ; do
    if [ -f "$x/grub/grub.cfg" ] ; then
      menuentry "Load Config from $x" $x { 
        root=$2
        configfile /grub/grub.cfg
      }
    fi
    if [ -f "$x/boot/grub/grub.cfg" ] ; then
      menuentry "Load Config from $x" $x {
        root=$2
        configfile /boot/grub/grub.cfg
      }
    fi
  done
}

submenu "DOS/Windows (Doesn't work)..." {

  set isoPath="/ISOs";
  
  #  menuentry "win7" {
  #    loopback loop "$isoPath/win7.iso"
  #    chainloader (loop)
  #  }

  menuentry "Run Windows 7 Ultimate 64-bit Installer (Doesn't work)" {
    #insmod part_msdos
    #insmod ntfs
    set root='(hd0,msdos5)'
    #search --no-floppy --fs-uuid --set=root 01D0DC21970FC910
    #drivemap -s (hd0) ${root}
    chainloader +1
    boot
  }

  menuentry "Microsoft Windows x86_64 UEFI-GPT Setup (Doesn't work)" {
    insmod usbms
    insmod part_gpt
    insmod part_msdos
    insmod fat
    insmod search_fs_uuid
    insmod chain
    search --fs-uuid --no-floppy --set=root 01D0DC21970FC910
    #chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi
    chainloader (${root})/efi/Microsoft/Boot/cdboot_noprompt.efi
  }

  menuentry "Windows 7 (loader) (on /dev/sda1) (Doesn't work)" {
  insmod part_msdos
  insmod ntfs
  insmod ntldr
  set root='hd0,msdos5'
  ntldr /bootmgr
}

  submenu "Windows PE..." {
  
    menuentry "WinPE 1a" {
      set root=(hd0,msdos5)
      boot
    }

    menuentry "WinPE 1b" {
      set root=(hd0,msdos5)
      chainloader +1
    }

    menuentry "WinPE 2" {
      rootnoverify (hd0,msdos5)
      chainloader +1
    }
  }
  
  submenu "MS-DOS..." {
    
      set isoPath="/ISOs";
      set dosWinPath="$isoPath/Dos-Win";
    
      menuentry "MS-DOS" {
        set isofile="$dosWinPath/DOS6.22_bootdisk.iso"
        set gfxpayload=text
        linux16 "$memdiskPath" raw
        initrd16 "$isofile"
      }
      menuentry "MS-DOS 2" {
        set isofile="$dosWinPath/DOS6.22_bootdisk.iso"
        linux16  "$memdiskPath" bigraw
        initrd16 "$isofile"
      }
    }
}

menuentry "Grub4dos (Untested)"{
 linux "$grub4dosPath"
}

menuentry 'System setup (Untested)' {
  fwsetup
}

menuentry "System shutdown (Untested)" {
  echo "System shutting down..."
  halt
}

menuentry "System restart (Untested)" {
  echo "System rebooting..."
  reboot
}