Hi, This is the build issue mentioned in the meeting this morning https://bugs.launchpad.net/starlingx/+bug/1794415 <- full details are here. In summary what happens is that ceph cannot be build, the build.log for ceph says: BUILDSTDERR: aclocal: overwriting 'm4/ax_c_var_func.m4' with '/usr/share/aclocal/ax_c_var_func.m4' BUILDSTDERR: aclocal: overwriting 'm4/ax_check_compile_flag.m4' with '/usr/share/aclocal/ax_check_compile_flag.m4' BUILDSTDERR: aclocal: installing 'm4/ax_cxx_compile_stdcxx.m4' from '/usr/share/aclocal/ax_cxx_compile_stdcxx.m4' BUILDSTDERR: aclocal: overwriting 'm4/ax_cxx_compile_stdcxx_11.m4' with '/usr/share/aclocal/ax_cxx_compile_stdcxx_11.m4' BUILDSTDERR: aclocal: overwriting 'm4/ax_cxx_static_cast.m4' with '/usr/share/aclocal/ax_cxx_static_cast.m4' BUILDSTDERR: aclocal: overwriting 'm4/pkg.m4' with '/usr/share/aclocal/pkg.m4' BUILDSTDERR: aclocal: installing 'm4/ax_require_defined.m4' from '/usr/share/aclocal/ax_require_defined.m4' BUILDSTDERR: aclocal: error: too many loops BUILDSTDERR: aclocal: Please contact <bug-automake@gnu.org>. BUILDSTDERR: at /usr/share/automake-1.13/Automake/Channels.pm line 662. BUILDSTDERR: Automake::Channels::msg('automake', '', 'too many loops') called at /usr/share/automake-1.13/Automake/ChannelDefs.pm line 212 BUILDSTDERR: Automake::ChannelDefs::prog_error('too many loops') called at /usr/bin/aclocal line 1187 BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.Sj0E7c (%build) BUILDSTDERR: Macro expanded in comment on line 214: %global _libexecdir %{_exec_prefix}/lib BUILDSTDERR: Bad exit status from /var/tmp/rpm-tmp.Sj0E7c (%build) RPM build errors: Child return code was: 1 EXCEPTION: [Error()] However, I'm able to build ceph in mock and I don't see this problem there. We'll continue investigating -Erich