If you truly need an ISO‑style installer for ARM (e.g., to deploy many boards without re‑downloading), you can create a hybrid image:
Armbian’s official armbian-install tool does exactly this when you boot from SD and install to eMMC. armbian iso
To make a recovery ISO (for USB boot on boards that support it – few do), you'd need to emulate an USB‑mass‑storage device with a GPT partition table and a FAT32 boot partition containing U‑Boot configured for USB boot. Most boards cannot boot ISO directly. If you truly need an ISO‑style installer for ARM (e
When browsing the Armbian download portal, users are often confronted with choices. Selecting the wrong ISO results in a non-booting board. The naming convention usually follows this pattern: When browsing the Armbian download portal, users are
Armbian_[Version]_[Distro]_[KernelBranch]_[Board].img.xz
fdisk -l analysis.img