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On 08/18/2013 05:50 AM, Grant wrote:
>>>>> When trying to eject a USB camera in thunar in xfce4, the error appears 
>>>>> and the device
>>>>> does not umount.  Here is a command that also produces the error:
>>>>> 
>>>>> # udisks --detach /dev/sdb Detach failed: Error detaching: helper exited 
>>>>> with exit code
>>>>> 1: Detaching device /dev/sdb USB device:
>>>>> /sys/devices/pci0000:00/0000:00:02.0/usb2/2-6) SYNCHRONIZE CACHE: FAILED: 
>>>>> No such file
>>>>> or directory (Continuing despite SYNCHRONIZE CACHE failure.) STOP UNIT: 
>>>>> FAILED: No such
>>>>> file or directory
>>>>> 
>>>>> # emerge -pv gvfs libgdu [ebuild   R    ] gnome-base/libgdu-3.0.2  
>>>>> USE="-avahi -doc
>>>>> -gnome-keyring" 0 kB [ebuild   R    ] gnome-base/gvfs-1.12.3-r1  
>>>>> USE="cdda gdu http
>>>>> udev -afp -archive -avahi -bluetooth -bluray -doc -fuse -gnome-keyring 
>>>>> -gphoto2 -ios
>>>>> -samba (-udisks)" 0 kB
>>>> ^^^^^^^
>>>> 
>>>> There's your problem.
>>>> 
>>>> thunar depends on gvfs, which can use udisks, but in your case the USE 
>>>> flag is forced,
>>>> masked, or removed.
>>>> 
>>>> You need to find out why that happened, it might be a profile thing, maybe 
>>>> it's a local
>>>> config. Try
>>>> 
>>>> grep -r udisks /etc/portage/
>>> 
>>> Nothing comes back from that grep.  My profile is 
>>> default/linux/amd64/13.0/desktop.  What
>>> else could be preventing me from enabling that USE flag?
>> 
>> 
>> 
>> It might be masked by the profile. As I understand it, recent EAPIs allow 
>> USE flags to be
>> forced per-profile. This makes sense - a dev might enable USE=udev 
>> everywhere except on
>> gentoo-freebsd profiles, just as an example. But I'm not yet up to speed on 
>> how to detect and
>> over-ride such things.
>> 
>> I think you should log a bug now at b.g.o. and let the devs tell you what's 
>> really going on
>> with your selections.
> 
> Will do, and I'll report back with the results.
> 
> Thanks, Grant
> 
> 

- From $PORTDIR/profiles/base/package.use.mask:

# GNOME <gn...@gentoo.org> (02 Oct 2012)
# Mask USE="udisks" and use USE="gdu" as the default for <gnome-base/gvfs-1.14;
# older gvfs releases have problems with recent stable udisks:2 (bug #463792)
<gnome-base/gvfs-1.14 udisks

- -- 
Jonathan Callen
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