menuentry 'System Rescue Cd' {
  set isofile='/systemrescuecd.iso'
  loopback loop (hd3,gpt2)$isofile
  linux (loop)/isolinux/rescue64 isoloop=$isofile nouveau.blacklist=1 nomodeset
  initrd (loop)/isolinux/initram.igz
}

menuentry "SystemRescueCd (isoloop)" {
    load_video
    insmod gzio
    insmod part_gpt
    insmod part_msdos
    insmod ext2
    search --no-floppy --label boot --set=root
    loopback loop /systemrescuecd.iso
    echo   'Loading kernel ...'
    linux  (loop)/sysresccd/boot/x86_64/vmlinuz img_label=boot img_loop=/systemrescuecd.iso archisobasedir=sysresccd copytoram setkmap=us
    echo   'Loading initramfs ...'
    initrd (loop)/sysresccd/boot/x86_64/sysresccd.img
}

menuentry "SystemRescueCd (isoloop)" {
    load_video
    insmod gzio
    insmod part_gpt
    insmod part_msdos
    insmod ext2
#    search --no-floppy --label boot --set=root
#    loopback loop /systemrescuecd.iso
set isofile='/systemrescuecd.iso'
loopback loop (hd3,gpt2)$isofile
    echo   'Loading kernel ...'
    linux  (loop)/sysresccd/boot/x86_64/vmlinuz img_label=boot img_loop=/systemrescuecd.iso archisobasedir=sysresccd copytoram setkmap=us
    echo   'Loading initramfs ...'
    initrd (loop)/sysresccd/boot/x86_64/sysresccd.img
}