When trying to boot on F-33 with recent grub2 on a rk3399 device such as a RockPro64 or Pinebook Pro I get the crash below. If I copy the /boot/efi/EFI/fedora/grubaa64.efi from a F-32 install it works fine. grub2-common-2.04-31.fc33.noarch grub2-tools-minimal-2.04-31.fc33.aarch64 grub2-tools-2.04-31.fc33.aarch64 grub2-efi-aa64-2.04-31.fc33.aarch64 U-Boot 2020.10-rc5 (Sep 22 2020 - 00:00:00 +0000) SoC: Rockchip rk3399 Reset cause: POR Model: Pine64 Pinebook Pro DRAM: 3.9 GiB PMIC: RK808 MMC: mmc@fe310000: 2, mmc@fe320000: 1, sdhci@fe330000: 0 Loading Environment from SPIFlash... Invalid bus 0 (err=-19) *** Warning - spi_flash_probe_bus_cs() failed, using default environment In: serial Out: serial Err: serial Model: Pine64 Pinebook Pro Net: No ethernet found. Hit any key to stop autoboot: 0 Card did not respond to voltage select! switch to partitions #0, OK mmc1 is current device Scanning mmc 1:1... Found EFI removable media binary efi/fedora/grubaa64.efi Found DTB mmc 1:2 /dtb/rockchip/rk3399-pinebook-pro.dtb 60174 bytes read in 13 ms (4.4 MiB/s) Card did not respond to voltage select! Scanning disk mmc... Disk mmc not ready Scanning disk mmc... ** Unrecognized filesystem type ** Card did not respond to voltage select! Scanning disk sdhci... Disk sdhci not ready Found 4 disks No EFI system partition BootOrder not defined EFI boot manager: Cannot load any image 2676208 bytes read in 289 ms (8.8 MiB/s) Booting /efi\fedora\grubaa64.efi "Synchronous Abort" handler, esr 0x96000004 elr: fffffffffcf5435c lr : fffffffffcf4fecc (reloc) elr: 00000000f3c9735c lr : 00000000f3c92ecc x0 : f1000401b59da621 x1 : 00000000f3c9d608 x2 : 000000000000000d x3 : 00000000f3c9d800 x4 : 00000000f3b080c0 x5 : 0000000000008650 x6 : 00000000f3b0d1c0 x7 : 0000000000000000 x8 : 0000000000000000 x9 : 0000000000000008 x10: 00000000f3f191c8 x11: 00000000f3f19220 x12: 00000000f3b216e0 x13: 00000000f4f27d50 x14: 00000000f6f43cb8 x15: 00000000f4f27d08 x16: 00000000f6f47be4 x17: 0000000000000001 x18: 0000000000000000 x19: 00000000f6f43b88 x20: 00000000f4f27e70 x21: 0000000002080000 x22: 000000000028d5f0 x23: 00000000f4f50a80 x24: 00000000f6ff4984 x25: 0000000000000000 x26: 0000000000000000 x27: 0000000000000000 x28: 00000000f4f51340 x29: 00000000f4f27d10 Code: f94003e0 91000400 f90003e0 f94007e0 (39400000) UEFI image [0x00000000f3c82000:0x00000000f3f0dfff] pc=0x1535c '/efi\fedora\grubaa64.efi' Resetting CPU ... resetting ...