From 330ce73491d2aa5d0ab5d9843fead3dc3025c458 Mon Sep 17 00:00:00 2001 From: Attie Grande Date: Fri, 3 Aug 2018 09:08:25 +0100 Subject: [PATCH] added Troubleshooting section to README.md, and addressed binfmt_misc issues --- README.md | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/README.md b/README.md index 25067f7..c8b9e2b 100755 --- a/README.md +++ b/README.md @@ -249,3 +249,26 @@ follows: * Once you're happy with the image you can remove the SKIP_IMAGES files and export your image to test +# Troubleshooting + +## `binfmt_misc` + +Linux is able execute binaries from other architectures, meaning that it should be +possible to make use of `pi-gen` on an x86_64 system, even though it will be running +ARM binaries. This requires support from the [`binfmt_misc`](https://en.wikipedia.org/wiki/Binfmt_misc) +kernel module. + +You may see the following error: + +``` +update-binfmts: warning: Couldn't load the binfmt_misc module. +``` + +To resolve this, ensure that the following files are available (install them if necessary): + +``` +/lib/modules/$(uname -r)/kernel/fs/binfmt_misc.ko +/usr/bin/qemu-arm-static +``` + +You may also need to load the module by hand - run `modprobe binfmt_misc`.