I attempted to follow the instructions located at /7.7/arm64/INSTALL.arm64, however the vagueness of “… copy… to a USB drive” may have impeded my progress.
I used “dd” on an existing 7.7 installation to copy the 7.7 arm64 “install77.img” to a USB drive. I then inserted the drive into my macbook, which already has Asahi Linux (UEFI only) installed. I then booted up, and Asahi loaded me into a U-boot console. U-boot detects the USB drive, but reports: […] Scanning USB 0:1… Failed to load ‘/‘ […] EFI boot manager: Cannot load any image I am at a loss. Ravi Serota