Description of problem: When attempting to boot Fedora-IoT-29-20181021.0.aarch64.raw.xz on the Raspberry Pi 3, after the grub menu: WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! error: ../../grub-core/commands/search.c:296:no such device: 4513e34b-c490-4743-9156-0244663c96fa. WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! WARNING at drivers/mmc/bcm2835_sdhost.c:408/bcm2835_send_command()! error: ../../grub-core/net/net.c:1548:disk `hd0,msdos1' not found. error: ../../grub-core/loader/arm64/linux.c:297:you need to load the kernel first. Version-Release number of selected component (if applicable): bcm283x-firmware-20181009-1.fbad640.fc29 How reproducible: Most boots, seems some MMC are worse than others.