HOWTO create a SliTaz LiveUSB for 64bit UEFI computers
http://doc.slitaz.org/en:guides:uefi
3. Installing an UEFI boot loader
You have now to install a boot loader compatible with UEFI; unfortunately, the grub2-efi package in the SliTaz repository is only for 32bit computers.
A simple way consists of using the boot loader from another 64bit distro :-/. I used Ubuntu but it should exist within some other smaller ISOs.compiled grub2( bootx64.efi) instead of another 64bit distro
It works for me.
# file bootx64.efi
bootx64.efi: PE32+ executable (EFI application) x86-64 (stripped to external PDB), for MS Windows
# unzip -l bootx64.efi.zip Archive: bootx64.efi.zip Length Date Time Name --------- ---------- ----- ---- 46 04-28-2018 02:55 bootx64.efi.md5 905728 04-25-2018 16:36 bootx64.efi -------- ------- 905774 2 files
grub2-efi-2.02-x86_64.tazpkg
https://goo.gl/rG324b
grub-2.02-x86_64.tazpkg
https://goo.gl/G1D6eW