localhost /opt/google # restart modemfwd
restart: Unknown instance: 
localhost /opt/google # modemfwd --firmware_directory=/opt/google/modemfwd --helper_directory=/opt/google/modemfwd-helpers/
INFO modemfwd: [main.cc(44)] Running modemfwd with firmware directory...
INFO modemfwd: [daemon.cc(62)] Use modem firmware variant: astronaut
INFO modemfwd: [daemon.cc(62)] Use modem firmware variant: astronaut
ERROR modemfwd: [journal.cc(195)] Could not open journal file
ERROR modemfwd: [daemon.cc(258)] Could not open journal file
ERROR modemfwd: [bus.cc(560)] Failed to get the ownership of org.chromium.Modemfwd: Connection ":1.626" is not allowed to own the service "org.chromium.Modemfwd" due to security policies in the configuration file
FATAL modemfwd: [dbus_daemon.cc(73)] Check failed: bus_->RequestOwnershipAndBlock(service_name_, dbus::Bus::REQUIRE_PRIMARY). Unable to take ownership of org.chromium.Modemfwd
Task trace:
/usr/lib64/libbase-dbus.so(dbus::ExportedObject::ExportMethodInternal(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, base::RepeatingCallback<void (dbus::MethodCall*, base::OnceCallback<void (std::__1::unique_ptr<dbus::Response, std::__1::default_delete<dbus::Response> >)>)> const&, base::OnceCallback<void (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool)>)+0x84) [0x7bd50c98f2e4]
/usr/lib64/libbase-dbus.so(dbus::ExportedObject::ExportMethod(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, base::RepeatingCallback<void (dbus::MethodCall*, base::OnceCallback<void (std::__1::unique_ptr<dbus::Response, std::__1::default_delete<dbus::Response> >)>)> const&, base::OnceCallback<void (std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool)>)+0xe3) [0x7bd50c98f203]

Aborted (core dumped)