My experience in using mailing list is very low. I may duplicate this email. Sorry. I saw previous https://www.openwall.com/lists/musl/2015/04/03/3 discussion about coreutils: cp: failed to preserve ownership for /var/tmp/portage/sys-apps/portage-2.3.84-r1/image/./usr/bin/quickpkg: Not supported I've reproduced this bug inside x86_64 musl container without qemu. I want just to clarify - this is 100% cross compilation issue of coreutils. It is connected with autoconf wrong guessing about musl. This issue will be fixed in next coreutils releases with the following commit https://git.savannah.gnu.org/cgit/gnulib.git/patch/?id=453ff940449bbbde9ec00f0bbf82a359c5598fc7 More info here https://bugs.gentoo.org/687236. Thank you.