Things required to run bash inside chroot

MG_

Hello, I installed bash in NetBSD using pkg_add. The shell works and I want to run it inside a chroot dir. But the bash executable isn't seen while it's there including 3 binary dependencies.
If I place it in the chroots /bin, which I don't agree with, it still says no such file or directory, while the program is there with executable permissions, recognized executable format and dependencies. It also works from outside the chroot dir, but inside it's "file not found", which is not true. All commands can see the file except when called as chroot parameter from outside.
I found several web mentions of the problem but no cause or solution. What am I missing? Do I have to refresh the dll stack like with ldconfig -R in FreeBSD? Also, I copied most of the native system parts tp the chroot dir. Does anything still need special file flags?

rvp

MG_ You probably forgot to copy ld.elf_so. This list works:

/tmp# find chroot
chroot/
chroot/bin
chroot/bin/bash
chroot/dev
chroot/dev/MAKEDEV
chroot/dev/MAKEDEV.local
chroot/dev/console
chroot/dev/constty
chroot/dev/drum
chroot/dev/kmem
chroot/dev/mem
chroot/dev/null
chroot/dev/full
chroot/dev/zero
chroot/dev/klog
chroot/dev/ksyms
chroot/dev/random
chroot/dev/urandom
chroot/dev/tty
chroot/dev/stdin
chroot/dev/stdout
chroot/dev/stderr
chroot/etc
chroot/etc/passwd
chroot/etc/master.passwd
chroot/usr
chroot/usr/lib
chroot/usr/lib/libterminfo.so.2
chroot/usr/lib/libc.so.12
chroot/usr/lib/libintl.so.1
chroot/usr/libexec
chroot/usr/libexec/ld.elf_so

/tmp# chroot -u rvp /tmp/chroot /bin/bash
bash-5.3$

The files inside dev were created using ./MAKEDEV std, and those in etc were copied from the system (you should, actually, generate a new one with only the reqd. entries). But really, you should just use mksandbox.