Yumex-dnf won't run due to some lock - solved, sort of

[Doug Wyatt]

Well, the problem still exists that, when you exit normally from
yumex-dnf, something is often left in a state that blocks starting
it again.

But, I've just found that running:

  yumex-dnf --exit

will "tell session dbus services used by yumex to exit" and
seems to remove the lock preventing the tool from opening.

DW

On 10/16/2015 12:13 PM, Paul Cartwright wrote:
> 
> 
> On 10/16/2015 01:04 PM, Doug Wyatt wrote:
>> Thanks for your reply ...
>>
>> However, /var/cache/dnf/metadata_lock.pid does not exist;
>> if there was a dnf lock file, I would have expected it to
>> prevent the 'dnf install ...' which I ran w/o problem.  Also,
>> there do not appear to be any relevant *.pid files in /var/run.
> I just  ran yumex-dnf & found this file in /var/cache/dnf :
> -rw-r--r--   1 root root        4 Oct 16 13:10 metadata_lock.pid
> 
> I also do NOT have a .pid file in var/run associated with dnf..
> sorry.. not sure what to do now..
> I had that problem before & I think even logging out didn't help, I had
> to reboot..
> 
>>
>> DW
>>
>> On 10/16/2015 4:58 AM, Paul Cartwright wrote:
>>>
>>> On 10/16/2015 04:38 AM, Doug Wyatt wrote:
>>>> I ran yumex-dnf a few times, then the last time I got the message:
>>>>
>>>>    dnf is locked by another process
>>>>    yum extender will exit
>>>>       [   OK   ]
>>>>
>>>> and, it exits.
>>>>
>>>> I can run dnf install successfully, and rpm -i also works.
>>>>
>>>> Can anyone suggest where the lock might be?
>>>>
>>> https://ask.fedoraproject.org/en/question/76157/failed-to-obtain-the-transaction-lock-logged-in-as-root/
>>>
>>>
>>> |rm /var/cache/dnf/metadata_lock.pid|
>>>
>>>
>>>
>>>
>