suse_base-13.1nb17: rebuilding run-time library search paths database
suse_base-13.1nb17: populating /usr/pkg/emul/linux/dev
pkg_add: var_set: can't open temp file for '/usr/pkg/pkgdb/cross-aarch64-none-elf-binutils-2.31.1nb1/+INSTALLED_INFO' for writing: No such file or directory
pkg_add: Just installed dependency cross-aarch64-none-elf-binutils>=2.31.1nb1 disappeared
pkg_add: Expected dependency cross-aarch64-none-elf-binutils>=2.31.1nb1 still missing
gettext-lib-0.22.5: copying /usr/pkg/share/examples/gettext/locale.alias to /usr/pkg/share/locale/locale.alias
pkg_add: package `m4-1.4.19nb1' was already installed as dependency, now marked as installed manually
pkg_add: 1 package addition failed
===========================================================================
$NetBSD: MESSAGE.NetBSD,v 1.3 2020/10/14 18:09:13 nia Exp $

Do not forget to modload the compat_linux or compat_linux32 modules.
Linux binaries require these in order to work. In older NetBSD versions
these will be autoloaded. Edit /etc/modules.conf to load the modules
automatically on boot.

Some Linux binaries also require tmpfs to be mounted on /dev/shm.
This can be automated by adding the following to your /etc/fstab:

tmpfs /emul/linux/dev/shm tmpfs rw,-m1777

===========================================================================