mock improvements

[Clark Williams]

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BJ Dierkes wrote:
>>
>>> 1) more reliable mount/umount
>>>   several people have pointed out instances where mock exits leaving
>>>   mounts behind (specifically /dev), and the next invokation of mock
>>>   ends up 'rm -rf' the host machine's /dev. Bad....
>>
>> And /dev/pts and /proc.
>>
> 
> Yes...  this is one should be pushed way up in priority if possible... 
> building any apps around mock will lead to many a developer wondering
> what just happened to their '/dev'...  as is the case right now for
> me.... atleast 10 times in the last few hours.
> 
> Thanks.

I'm looking at BZ 250985 now.

I'd like to add code to do two things:

1. Find where we're exiting without umounting
2. Add some paranoia code in the startup logic to not screw up if #1 fails (like is
happening now).

To that end, would you run one of your failure cases with mock --debug and send me
the output?

Thanks,
Clark

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