Grub2 config for live systemrescue boot

# Global options (from sysrcd)
set timeout=90
set default=0
set fallback=1
set pager=1

have_grubenv=true
load_env
insmod part_msdos
insmod fat

## Display settings (from sysrcd)
if loadfont /boot/grub/font.pf2 ; then
    set gfxmode=640x480
    set color_normal=black/cyan
    set color_highlight=black/light-gray
    set menu_color_normal=black/cyan
    set menu_color_highlight=black/light-gray
    insmod efi_gop
    insmod efi_uga
    insmod gfxterm
    insmod all_video
    insmod videotest
    insmod videoinfo
    terminal_output gfxterm
fi

terminal_output gfxterm

insmod gfxmenu
loadfont /boot/grub/themes/breeze/unifont-bold-16.pf2
loadfont /boot/grub/themes/breeze/unifont-regular-14.pf2
loadfont /boot/grub/themes/breeze/unifont-regular-16.pf2
loadfont /boot/grub/themes/breeze/unifont-regular-32.pf2
insmod png
set theme=/boot/grub/themes/breeze/theme.txt
export theme

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
## END from neon.grub.cfg }

submenu "System Rescue"{
    set usbstickdevice='/dev/disk/by-uuid/242A-5DE2'

    ## Doesn't work
    menuentry "SytemRescue 8.0 (64 bit, default boot options)" {
        set isofile="/boot/iso/systemrescue-8.00-amd64.iso"
        set usbstickdevice='/dev/disk/by-uuid/242A-5DE2'
        set gfxpayload=keep
        loopback loop $isofile
        echo "Loading kernel..."
        linux   (loop)/sysresccd/boot/x86_64/vmlinuz img_dev=$usbstickdevice img_loop=$isofile earlymodules=loop archisobasedir=sysresccd archisolabel=RESCUE800
        echo "Loading initramfs..."
        initrd (loop)/sysresccd/boot/intel_ucode.img (loop)/sysresccd/boot/amd_ucode.img (loop)/sysresccd/boot/x86_64/sysresccd.img
    }

    menuentry "SytemRescue 6.0.3 (64 bit, default boot options)" {
        ## setting variables outside of menuentry doesn't work for some reason
        set isofile="/boot/iso/systemrescuecd-6.0.3.iso"
        set gfxpayload=keep
        loopback loop $isofile
        echo "Loading kernel..."
        linux   (loop)/sysresccd/boot/x86_64/vmlinuz img_dev=$usbstickdevice img_loop=$isofile archisobasedir=sysresccd archisolabel=SYSRCD603
        echo "Loading initramfs..."
        initrd  (loop)/sysresccd/boot/x86_64/sysresccd.img
    }

    menuentry 'Memtest' {
        set isofile="/boot/iso/systemrescue-8.00-amd64.iso"
        loopback loop $isofile
        linux16 (loop)/sysresccd/boot/memtest
    }
}