March 31, 20251 yr The usual way to get the a headless linux box up and running is to flash a disk image to a µSD card and then insert that card into the linux box, boot, answer some questions and it's done. Can I not do the same thing with an image file that I put on the µSD card (in addition to the µSD card having a complete linux OS that the box can boot from) and copy that to the emmc? Then pull the card and boot from the emmc? Does the image file used for a µSD card differ from the image file that should be written to the emmc? e.g. I have an armbian image, say "Armbian_25.2.2_Rockpi-s_bookworm_current_6.12.15_minimal.img.xz", on my µSD card at /media/images The emmc is at /dev/mmcblk0 Can I not just go: dd if=/media/images/Armbian_25.2.2_Rockpi-s_bookworm_current_6.12.15_minimal.img.xz of=/dev/mmcblk0 bs=4M status=progress I tried this, but it did not create a bootable image on the emmc.
March 31, 20251 yr You need to make sure that any disk IDs get updated to the new values for you target media. Look in your armbianEnv.txt file and possibly your /etc/fstab files. But in general to solve booting issues you will need a USB uart adapter to see what is happening during the boot process that is failing.
March 31, 20251 yr Author Solution NM. Stupid user error. Gotta uncompress the image first! xz -d Armbian_25.2.2_Rockpi-s_bookworm_current_6.12.15_minimal.img.xz then dd if=/media/images/Armbian_25.2.2_Rockpi-s_bookworm_current_6.12.15_minimal.img of=/dev/mmcblk0 bs=4M status=progress Works as expected, but as you say, you do need to make sure you have a new UUID, and change /boot/armbianEnv.txt (and maybe /etc/fstab too)? Edited March 31, 20251 yr by Meestor_X
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