eval $(udevadm info --export --query=env --name=${LOOPDEV}p2)
setup_basic_environment
- dracut_install busybox chmod rmdir unshare ip
+ dracut_install busybox chmod rmdir unshare ip sysctl
# mask some services that we do not want to run in these tests
ln -fs /dev/null $initdir/etc/systemd/system/systemd-hwdb-update.service
fi
is_user_ns_supported=no
+# On some systems (e.g. CentOS 7) the default limit for user namespaces
+# is set to 0, which causes the following unshare syscall to fail, even
+# with enabled user namespaces support. By setting this value explicitly
+# we can ensure the user namespaces support to be detected correctly.
+sysctl -w user.max_user_namespaces=10000
if unshare -U sh -c :; then
is_user_ns_supported=yes
fi