Let go of my serial ports

[stresstool]

On Fedora 12, how do I convince NetworkManager and/or modem-manager to not probe any serial ports at all, ever? Neither ttyS* nor ttyUSB*.

I have a number of devices connected via serial ports (none of them are modems) and all worked perfectly under Fedora 10. Updated to Fedora 12 and now with the addition of modem-manager, none of the USB->serial devices work at all (any application's attempts to open the device results in a permanent hang). If I stop NetworkManager then kill modem-manager, the serial devices work properly.

I'd skip using NM except it seems we need it to be able to recover from the ethernet cable being unplugged then reconnected at any random time and it looks like NM does a decent job of handling that.

Thanks in advance for any assistance.

[macemoneta]

You can move this file to /root/ for safekeeping:

/usr/share/dbus-1/system-services/org.freedesktop.ModemManager.service

Then restart, and modem manager will not be started.

[stresstool]

Thanks, that worked perfectly.

[v0m17]

How to kill modem-manager.I have 2 machines with non working serial.neither multiport or mainboard.