if hasattr(bs_scheme, 'certs') and bs_scheme.certs:
bu.copy_update_certs(bs_scheme.certs, chroot)
bu.run_apt_get(chroot, packages=packages,
if hasattr(bs_scheme, 'certs') and bs_scheme.certs:
bu.copy_update_certs(bs_scheme.certs, chroot)
bu.run_apt_get(chroot, packages=packages,