Doesn't work

[hasufell]

$ docker run --rm --privileged multiarch/qemu-user-static --reset -p yes                                                                      1.12h  Fri 14:16
Setting /usr/bin/qemu-alpha-static as binfmt interpreter for alpha
Setting /usr/bin/qemu-arm-static as binfmt interpreter for arm
Setting /usr/bin/qemu-armeb-static as binfmt interpreter for armeb
Setting /usr/bin/qemu-sparc-static as binfmt interpreter for sparc
Setting /usr/bin/qemu-sparc32plus-static as binfmt interpreter for sparc32plus
Setting /usr/bin/qemu-sparc64-static as binfmt interpreter for sparc64
Setting /usr/bin/qemu-ppc-static as binfmt interpreter for ppc
Setting /usr/bin/qemu-ppc64-static as binfmt interpreter for ppc64
Setting /usr/bin/qemu-ppc64le-static as binfmt interpreter for ppc64le
Setting /usr/bin/qemu-m68k-static as binfmt interpreter for m68k
Setting /usr/bin/qemu-mips-static as binfmt interpreter for mips
Setting /usr/bin/qemu-mipsel-static as binfmt interpreter for mipsel
Setting /usr/bin/qemu-mipsn32-static as binfmt interpreter for mipsn32
Setting /usr/bin/qemu-mipsn32el-static as binfmt interpreter for mipsn32el
Setting /usr/bin/qemu-mips64-static as binfmt interpreter for mips64
Setting /usr/bin/qemu-mips64el-static as binfmt interpreter for mips64el
Setting /usr/bin/qemu-sh4-static as binfmt interpreter for sh4
Setting /usr/bin/qemu-sh4eb-static as binfmt interpreter for sh4eb
Setting /usr/bin/qemu-s390x-static as binfmt interpreter for s390x
Setting /usr/bin/qemu-aarch64-static as binfmt interpreter for aarch64
Setting /usr/bin/qemu-aarch64_be-static as binfmt interpreter for aarch64_be
Setting /usr/bin/qemu-hppa-static as binfmt interpreter for hppa
Setting /usr/bin/qemu-riscv32-static as binfmt interpreter for riscv32
Setting /usr/bin/qemu-riscv64-static as binfmt interpreter for riscv64
Setting /usr/bin/qemu-xtensa-static as binfmt interpreter for xtensa
Setting /usr/bin/qemu-xtensaeb-static as binfmt interpreter for xtensaeb
Setting /usr/bin/qemu-microblaze-static as binfmt interpreter for microblaze
Setting /usr/bin/qemu-microblazeel-static as binfmt interpreter for microblazeel
Setting /usr/bin/qemu-or1k-static as binfmt interpreter for or1k
Setting /usr/bin/qemu-hexagon-static as binfmt interpreter for hexagon

This command does nothing:

$ docker run --rm -ti arm32v7/debian uname -m                                                                                                 552ms  Fri 14:31
Unable to find image 'arm32v7/debian:latest' locally
latest: Pulling from arm32v7/debian
ff8c004d0dc8: Pull complete
Digest: sha256:094f57857f78e219136c9afbf4d683fc7c16f762cc1ae68e8b03100827aad939
Status: Downloaded newer image for arm32v7/debian:latest
WARNING: The requested image's platform (linux/arm/v7) does not match the detected host platform (linux/amd64) and no specific platform was requested
$ docker run --platform linux/arm/v7 --rm -ti arm32v7/debian uname -m

No output, attaching to shell doesn't work.

---

Fedora 34, kernel 5.13.13-200.fc34.x86_64

[maccelf]

Does anyone know how to fix that ? I have the same issue on Fedora 36 and 37

[joharohl]

I had the same issue.

Reinstalling qemu-user-binfmt got it working again for me: sudo dnf reinstall qemu-user-binfmt.x86_64 .
The only difference in the binfmt files is that the flag F is added when running the register command.
My knowledge about what that flag actually does and how it would effect things are beyond me, but it seems to work as expected.