записал образ alt media writer на sd карту, вставил в orange pi 800 скачал u-boot-orangepi-800-EFI.img
и выполнил
dd oflag=direct if=/home/orangepi/Downloads/u-boot-orangepi-800-EFI.img of=/dev/mmcblk0p1 bs=1M status=progress; sync
root@orangepi800:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
mmcblk1 179:0 0 58,2G 0 disk
└─mmcblk1p1
179:1 0 57,6G 0 part /var/log.hdd
/
mmcblk1boot0
179:32 0 4M 1 disk
mmcblk1boot1
179:64 0 4M 1 disk
mmcblk0 179:96 0 29,1G 0 disk
├─mmcblk0p1
│ 179:97 0 241M 0 part
└─mmcblk0p2
179:98 0 8,4G 0 part /media/orangepi/81d9eec1-bb59-4b34-92f9-a19b4fab7741
zram0 252:0 0 1,9G 0 disk [SWAP]
zram1 252:1 0 50M 0 disk /var/log
zram2 252:2 0 0B 0 disk
root@orangepi800:~#