cannot create linux cross-build environment

[liesauer]

i am using wsl2 with a flash new ubuntu 22, i already follow the building workflow and install everything, when i try to creating the rootfs by running sudo ./eng/common/cross/build-rootfs.sh arm64 bionic, i got this error:

umount: /home/user/projects/runtime/eng/common/cross/../../../.tools/rootfs/arm/debootstrap: not mounted.
umount: /home/user/projects/runtime/eng/common/cross/../../../.tools/rootfs/arm/var: not mounted.
running debootstrap --variant=minbase --force-check-gpg --arch armhf bionic /home/user/projects/runtime/.tools/rootfs/arm http://ports.ubuntu.com/
I: Retrieving InRelease
I: Checking Release signature
I: Valid Release signature (key id 790BC7277767219C42C86F933B4FE6ACC0B21F32)
I: Retrieving Packages
I: Validating Packages
I: Resolving dependencies of required packages...
I: Resolving dependencies of base packages...
I: Checking component main on http://ports.ubuntu.com...
I: Retrieving adduser 3.116ubuntu1
...
...
...
chroot: failed to run command '/bin/true': Exec format error

i have no idea what to do.

[liesauer]

i don't know why, but looks like the first binfmt-support installation was failed without any notice.

reinstall binfmt-support and it works now.

[liesauer]

when i was running sudo ./eng/common/cross/build-rootfs.sh arm64 bionic, i got this error:

chroot: failed to run command '/bin/true': No such file or directory

/bin/true definitely there, so this may be a missing lib issue, but i already installed every package i saw in the document.

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[akoeplinger]

Looks like this seems to be a common issue with WSL and binfmt: RPi-Distro/pi-gen#772