Bug 164531

Summary:	final shutdown for USB based UPS's fails
Product:	[Fedora] Fedora	Reporter:	Alfred Ganz <alfred-ganz+bug>
Component:	nut	Assignee:	Than Ngo <than>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	3	CC:	fabrice
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:	FC5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-04-24 16:54:07 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	164524

Description Alfred Ganz 2005-07-28 15:30:34 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050719 Fedora/1.7.10-1.3.1

Description of problem:
At the end of /etc/init.d/halt, a UPS driver program may be called to turn off
the UPS. The driver programs for USB based UPS devices are currently
dynamically linked with libusb.so, which resides in /usr/lib, but /usr has been unmounted at this point.

I have suggested that the driver programs in question be linked statically
with libusb, but have been told that this is not suitable, and to ask that
libusb.so be installed in /lib.

I don't really care how this problem is solved, but in order to make USB based
UPS driver programs work, they must work at the end of /etc/init.d/halt.

Note that in addition to this problem, /etc/init.d/halt needs to delay the
umount of /proc/bus/usb until after the above code. I have filed bug 164524
for this.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.ldd /sbin/newhidups  
2.
3.
  

Additional info:

Comment 1 Fabrice Bellet 2006-02-07 20:48:04 UTC

. I agree with Alfred, that the /etc/init.d/halt script needs some love, when
handling the /etc/killpower case :

. A possible workaround for Alfred's last note, about the missing /proc/bus/usb
usbfs, is to remount it just before issuing the ups shutdown command. In this
case, a "-u root" option must be added to this command, because the usb device
in the usbfs tree is no longer with the right 'nut' group, after remount.

. Another problem with the current script, is that $DEVICE is supposed to
contains a value, but this is not mandatory, if this information is in
/etc/ups/ups.conf instead, and if the $MODEL command is launched with the "-a
<myups>" option. I suggest to use the same invokation than in /etc/init.d/nut : 
/sbin/$MODEL -u root -k $OPTIONS $DEVICE, and to remove the test "-n $DEVICE"
just above.
(btw, what's the purpose of $OPTIONS_HALT here ?, this options is not documented
in /etc/sysconfig/ups)

. The problem is still in FC4, and rawhide.

Comment 2 Than Ngo 2006-04-24 16:54:07 UTC

it's now fixed in FC5 release. Thanks for your report.