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Description of problem: 3G Dongles no longer work with Fedora 20 (Beta) ModemManager is not loaded. Version-Release number of selected component (if applicable): ModemManager-1.1.0-2.git20130913.fc20.x86_64 How reproducible: Always Steps to Reproduce: 1. Plug in 3G dongle 2. wait Actual results: Nothing happens. In the background, USB detects the dongle. usb_modeswitch triggers. Systemd attempts to load ModemManager. Systemd cannot find ModemManager Expected results: Somehow magically the 3G network becomes available in the network list. Additional info: ModemManager is i686 ONLY in Fedora 20 ??? Rest is x86_64. From /var/log/messages: Nov 30 17:21:16 klatch systemd-udevd[30502]: renamed network interface wwan0 to wwp0s29u1u2i1 Nov 30 17:21:57 klatch dbus-daemon: dbus[598]: [system] Activating via systemd : service name='org.freedesktop.ModemManager1' unit='dbus-org.freedesktop.Mode mManager1.service' Nov 30 17:21:57 klatch dbus-daemon: dbus[598]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1.service': Unit dbus-org.f reedesktop.ModemManager1.service failed to load: No such file or directory. Nov 30 17:21:57 klatch dbus[598]: [system] Activating via systemd: service nam e='org.freedesktop.ModemManager1' unit='dbus-org.freedesktop.ModemManager1.ser vice' Nov 30 17:21:57 klatch dbus[598]: [system] Activation via systemd failed for u nit 'dbus-org.freedesktop.ModemManager1.service': Unit dbus-org.freedesktop.Mo demManager1.service failed to load: No such file or directory. /usr/share/dbus-1/system-services/org.freedesktop.ModemManager1.service: [D-BUS Service] Name=org.freedesktop.ModemManager1 Exec=/usr/sbin/ModemManager User=root SystemdService=dbus-org.freedesktop.ModemManager1.service /usr/lib/systemd/system/ModemManager.service: [Unit] Description=Modem Manager After=syslog.target [Service] Type=dbus BusName=org.freedesktop.ModemManager1 ExecStart=/usr/sbin/ModemManager StandardError=null Restart=on-abort [Install] WantedBy=multi-user.target Alias=dbus-org.freedesktop.ModemManager1.service ldd /usr/sbin/ModemManager: linux-vdso.so.1 => (0x00007fff399fe000) libgudev-1.0.so.0 => /lib64/libgudev-1.0.so.0 (0x0000003a74200000) libmm-glib.so.0 => /lib64/libmm-glib.so.0 (0x00000032d8600000) libgmodule-2.0.so.0 => /lib64/libgmodule-2.0.so.0 (0x00007f9049750000) libqmi-glib.so.1 => /lib64/libqmi-glib.so.1 (0x00000032c5200000) libmbim-glib.so.0 => /lib64/libmbim-glib.so.0 (0x0000003a72200000) libgio-2.0.so.0 => /lib64/libgio-2.0.so.0 (0x00007f90493ea000) libgobject-2.0.so.0 => /lib64/libgobject-2.0.so.0 (0x00007f9049199000) libglib-2.0.so.0 => /lib64/libglib-2.0.so.0 (0x00007f9048e6d000) libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003144e00000) libc.so.6 => /lib64/libc.so.6 (0x0000003144200000) libudev.so.1 => /lib64/libudev.so.1 (0x0000003a71e00000) libselinux.so.1 => /lib64/libselinux.so.1 (0x0000003145e00000) librt.so.1 => /lib64/librt.so.1 (0x0000003146200000) libdl.so.2 => /lib64/libdl.so.2 (0x0000003144a00000) libffi.so.6 => /lib64/libffi.so.6 (0x0000003148200000) libz.so.1 => /lib64/libz.so.1 (0x0000003145200000) libresolv.so.2 => /lib64/libresolv.so.2 (0x0000003147200000) /lib64/ld-linux-x86-64.so.2 (0x0000003143a00000) libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003145600000) libpcre.so.1 => /lib64/libpcre.so.1 (0x0000003145a00000)
Does 'systemctl start ModemManager.service' help? 'systemctl enable ModemManager.service' to enable it permanently.
Works great.
Did you upgrade from an earlier release to F20? I think in tests I did, the service is enabled on fresh installs...
I also have this message: Dec 16 03:38:12 localhost dbus-daemon[221]: dbus[221]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.ModemManager1.service': Unit dbu s-org.freedesktop.ModemManager1.service failed to load: No such file or directory. There is file org.freedesktop.ModemManager1.service, so maybe activation failed because of dbus- prefix in unit name?
There is in ModemManager package: /usr/share/dbus-1/system-services/org.freedesktop.ModemManager1.service
Those messages will go away now you've enabled ModemManager.service. It's 'normal' that they're printed when it's installed but disabled (it's a bug, but a known one): https://fedoraproject.org/wiki/Common_F20_bugs#modemmanager-dbus-spam , https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=1018017 .
I did upgrade, yes.
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