Bug 1011213 – apcupsd fails to start when using USB serial port device

Bug 1011213 - apcupsd fails to start when using USB serial port device

Summary:	apcupsd fails to start when using USB serial port device

Status:	CLOSED DUPLICATE of bug 544121

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	apcupsd (Show other bugs)
Sub Component:
Version:	19
Hardware:	x86_64 Linux

Priority	unspecified Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Michal Hlavinka
QA Contact:	Fedora Extras Quality Assurance
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Reported:	2013-09-23 15:25 EDT by John Griffiths
Modified:	2013-09-24 11:39 EDT (History)
CC List:	1 user (show)

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Doc Type:	Bug Fix
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Last Closed:	2013-09-24 11:39:24 EDT
Type:	Bug
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Description John Griffiths 2013-09-23 15:25:23 EDT

Description of problem:
When an USB serial device is used, apcupsd fails to start at system boot even though it is enabled.

Version-Release number of selected component (if applicable):
apcupsd-3.14.10-10.fc19.x86_64

How reproducible:
always

Steps to Reproduce:
1. install a USB serial device
2. configure apcupsd to use the USB serial device, (DEVICE /dev/ttyUSB0)
3. reboot the system

Actual results:
apcupsd does not start because it cannot connect to the serial device.

Expected results:
apcupsd should start

Additional info:
Using systemctl start apcupsd.service after the system has booted starts apcupsd successfully.

Comment 1 Michal Hlavinka 2013-09-24 05:25:31 EDT

Do you have ModemManager installed?
If you do, try to remove it, reboot and check if apcupsd works or not.
If you need ModemManager, install it back. If you are connected via modem, download ModemManager rpm first (using yumdownloader) so you don't need internet connection to install it back.

Also what is the apcupsd error message exactly?

Comment 2 John Griffiths 2013-09-24 11:20:11 EDT

Yes, I had ModemManager installed. No, did not need it. Removed it and apcupsd started correctly.

Thanks.

Comment 3 Michal Hlavinka 2013-09-24 11:39:24 EDT

Unfortunately, ModemManager steals all (usb)serial devices during boot.

*** This bug has been marked as a duplicate of bug 544121 ***

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