hello,
there is no option to install in flash, Install/Update the bootloader on SPI Flash
im using olimex a20 lime with emmc Armbian 23.8.1 Jammy with Linux 6.1.47-current-sunxi
verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun7i-a20
rootdev=UUID=6a1af220-c7aa-449a-b709-c3eb897ae28a
rootfstype=ext4
overlays=mmc2 pwm spi-add-cs1 spi-jedec-nor spi-spidev
param_spinor_spi_bus=0
#param_spinor_spi_cs=1
param_spidev_spi_bus=2
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
im using like that but it dont boot if i remove sd
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
mmcblk0 179:0 0 7.3G 0 disk
└─mmcblk0p1 179:1 0 7.2G 0 part /var/log.hdd
/
mmcblk1 179:8 0 14.6G 0 disk
└─mmcblk1p1 179:9 0 14.4G 0 part /mnt
mmcblk1boot0 179:16 0 4M 1 disk
mmcblk1boot1 179:24 0 4M 1 disk
zram0 254:0 0 229.8M 0 disk [SWAP]
zram1 254:1 0 50M 0 disk /var/log
zram2 254:2 0 0B 0 disk