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RPi-Distro / pi-gen

Tool used to create the official Raspberry Pi OS images
BSD 3-Clause "New" or "Revised" License
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README: update `binfmt_misc` troubleshooting section for `aarch64` #678

Closed stefanb2 closed 1 year ago

stefanb2 commented 1 year ago

When running a build from the arm64 branch, i.e. for the aarch64 target, then /usr/bin/qemu-aarch64-static is required to execute the target binaries on the host machine:

# file /pi-gen/work/<IMG_NAME>/stage0/rootfs/bin/echo
/pi-gen/work/<IMG_NAME>/stage0/rootfs/bin/echo: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), ...
# ls /proc/sys/fs/binfmt_misc/
qemu-aarch64  qemu-aarch64_be  qemu-arm  qemu-armeb  register  status
# chroot "/pi-gen/work/<IMG_NAME>/stage0/rootfs" /bin/echo it works!
it works!

Depending on the host system the user may have to install a different package to get QEMU aarch64 support, f.ex. on Fedora it would be qemu-user-static-aarch64.

Adding this to the troubleshooting section will hopefully save hours of head-scratching for other users...

XECDesign commented 1 year ago

In general we only support Debian and some versions of Ubuntu, but I'd accept a PR if you think it'll help others.

stefanb2 commented 1 year ago

Sure, whenever GitHub recovers from the current meltdown...