the one sensor that was disconnected was still appearing in the log on reboot - this is after the device was physically disconnected and shows that it is connected properly:
========== NEW LOG SECTION ==========
1 02/16/13 10:43:50 118 (spawning-device) Starting... 1
1 02/16/13 10:43:50 118 (spawning-device) Found /usr/pluto/bin/OneWire
01 02/16/13 10:43:51.543 TranslateSerialUSB pci0000:00/0000:00:12.0+1 result /dev/ttyUSB1 <0xb77506d0>
01 02/16/13 10:43:51.543 Opening port: /dev/ttyUSB1 <0xb77506d0>
05 02/16/13 10:43:52.164 Creating child 130 <0xb77506d0>
05 02/16/13 10:43:52.164 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77506d0>
05 02/16/13 10:43:52.165 Creating child 131 <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77506d0>
05 02/16/13 10:43:52.165 Creating child 132 <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77506d0>
05 02/16/13 10:43:52.165 Creating child 133 <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77506d0>
05 02/16/13 10:43:52.165 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77506d0>
05 02/16/13 11:39:31.712 Got a reload command from 0 <0xb61ffb70>
05 02/16/13 11:39:31.966 void ClientSocket::Disconnect() on this socket: 0x80b4350 (m_Socket: 7) <0xb77506d0>
Return code: 2
2 02/16/13 11:39:31 118 (spawning-device) Device requests restart... count=1/50 dev=118
Sat Feb 16 11:39:32 CST 2013 Restart
then after device 132 was deleted:
========== NEW LOG SECTION ==========
1 02/16/13 11:47:26 118 (spawning-device) Starting... 1
1 02/16/13 11:47:26 118 (spawning-device) Found /usr/pluto/bin/OneWire
01 02/16/13 11:47:26.321 TranslateSerialUSB pci0000:00/0000:00:12.0+1 result /dev/ttyUSB1 <0xb77a26d0>
01 02/16/13 11:47:26.321 Opening port: /dev/ttyUSB1 <0xb77a26d0>
05 02/16/13 11:47:26.708 Creating child 130 <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77a26d0>
05 02/16/13 11:47:26.709 Creating child 131 <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77a26d0>
05 02/16/13 11:47:26.709 Creating child 133 <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom event handler for. It will not fire events. <0xb77a26d0>
05 02/16/13 11:47:26.709 Note: Device manager has attached a device of type 1946 that this has no custom handler for. This is normal for IR. <0xb77a26d0>
it seems like it doesn't find the device. When I installed them less than a week ago they were discovered almost immediately.