Hint needed: EMMC iommu and /bootefi etc

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You forgot to do manual partitioning, which is very much needed in this case:

  1. Plug another USB or mSD stick/card that will store your bootloader and the kernel.
  2. Click on mmcblk0 (eMMC), manual, clear current partition table.
  3. Pick USB/mSD, create /boot/efi partition (FAT32 ~200 - 600MB) and /boot (EXT4 ~1GB)
  4. Create rootfs on eMMC (/ ext4 100% free, or however you like, please remember about encrypting it with luks2).
  5. Continue with the installation.

You can also use dd to wipe the partition table:
dd if=/dev/zero of=/dev/mmcblk0 bs=512k count=1

External storage media will need to be present while:
a) Booting the system up
b) Installing updates
Otherwise it can be safely unplugged while the system is running :slight_smile:

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