Using a 32G microsd,
expand sdx3 to full size
put starfive…img file in /root
boot
dd if=starfive…img of=/dev/nvme0n1 bs=4M
expand nvme0n1p3 to full size
edit /boot/boot/extlinux/extlinux.conf
change the append line to nvme0n1p3
mount /dev/nvme0n1p3 /mnt
edit /mnt/etc/fstab
/dev/nvme0n1p3 / ext4 …
reboot into nvme drive
rescue boot still boots microsd
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