menuentry "custom.cfg: debian-live-12.5.0-amd64-lxde.iso" {
        insmod part_gpt
        insmod ext2
        search --no-floppy --fs-uuid --set=root 8e1fa52e-49de-49f4-b55a-2e261d27891b
        loopback loop /boot/iso/debian-live-12.5.0-amd64-lxde.iso
        linux (loop)/live/vmlinuz boot=live findiso=/boot/iso/debian-live-12.5.0-amd64-lxde.iso
        initrd (loop)/live/initrd.img
}