qemu-user-static | : earth_africa : /usr/bin/qemu- *

qemu-user-static is a Shell library typically used in Hardware, Raspberry Pi applications. qemu-user-static has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

multiarch/qemu-user-static images are managed on the Docker Hub container repository. The images have below tags. multiarch/qemu-user-static and multiarch/qemu-user-static:register images execute the register script that registers below kind of /proc/sys/fs/binfmt_misc/qemu-$arch files for all supported processors except the current one in it when running the container. See binfmt_misc manual [2] for detail of the files. As the /proc/sys/fs/binfmt_misc are common between host and inside of container, the register script modifies the file on host. The --reset option is implemented at the register script that executes find /proc/sys/fs/binfmt_misc -type f -name 'qemu-*' -exec sh -c 'echo -1 > {}' \; to remove binfmt_misc entry files before register the entry. When same name's file /proc/sys/fs/binfmt_misc/qemu-$arch exists, the register command is failed with an error message "sh: write error: File exists". On below image, we can not specify -p yes (--persistent yes) option. Because an interpreter's existance is checked when registering a binfmt_misc entry. As the interpreter does not exist in the container, the register script finshes with the error. Then the register script executes QEMU's scripts/qemu-binfmt-conf.sh script with options. You can check usage() in the file about the options. You can run /usr/bin/qemu-$arch-static binary file` in the container. multiarch/qemu-user-static:$from_arch-$to_arch images are used with multiarch/qemu-user-static:register image. Because when the binfmt_misc entry is registered without -p option, the interpreter needs to be put in the container. If you have qemu-$arch-static binary files on your local environment, you can set it to the container by docker -v volume mounted file.