[scripts] arm: execute profiles update outside qemu-user chroot

scripts/outer_source_chroot_script_arm.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+/usr/sbin/env-update
+. /etc/profile
+
+# Execute this here due to technical problems with qemu-user
+
+# Update /usr/portage/profiles
+# This is actually not strictly needed but several
+# gentoo tools expect to find valid /etc/make.profile symlink
+# This part is best effort, if it will be able to complete
+# correctly, fine.
+# For a list of mirrors, see: http://www.gentoo.org/main/en/mirrors-rsync.xml
+RSYNC_URI="rsync://rsync.at.gentoo.org/gentoo-portage/profiles"
+PROFILES_DIR="${CHROOT_DIR}/usr/portage/profiles"
+for x in $(seq 5); do
+	rsync -av -H -A -X --delete-during "${RSYNC_URI}/" "${PROFILES_DIR}/" && break
+	sleep 1m || exit 1
+done
+
+exit 0