On 10/07/18 15:01, Dennis Lee Bieber wrote:
> On Tue, 10 Jul 2018 08:53:04 +0100, RobH  declaimed the
> following:
>
>>
>> pi@raspberrypi:/mnt/CCTV/PiZero $ df -Bm
>> Filesystem                  1M-blocks  Used Available Use% Mounted on
>> /dev/root                      14850M 3434M    10752M  25% /
>> devtmpfs                         182M    0M      182M   0% /dev
>> tmpfs                            186M  186M        0M 100% /dev/shm <<<<
>> tmpfs                            186M    8M      178M   4% /run
>>
>
>  There is plenty of space on the SD card -- 10GB of free space. /dev/shm
> is a RAM disk that is only 186MB total.

If that be the case, I don't know why I was getting the said error message.
>
>> Then:
>>
>> pi@raspberrypi:/mnt/CCTV/PiZero $ cp /run/shm/*.h264 /mnt/CCTV/PiZero
>>
>> Where about 30/40 h264 files were copied across to my NAS /PiZero folder
>>
>  Did you examine the time stamps on those files? I'm just curious if
> they are all recent, or scattered around. Note that rebooting the RPi
> should result in cleaning out those files too -- should they have been
> left-overs from development.

The timestamps of the files are 2018-06-24 upto 2018-06-27, and one
2018-07-09_22.37.29
>
>  And did you examine the NAS to see if copies of those files were on it
> BEFORE doing the copy?

Yes I did examine the PiZero folder before copying the files across to
it, and there were no files copied or written while the python script
was running
>
>  If the script is configured as I designed it, it is:
> 1) capturing to the RAM
> 2) a few seconds after the capture completes it does a copyfile() to move
> the captured data to the NAS
> 3) then does an unlink() of the RAM file, which is supposed to delete it
> from RAM
>
>  If the script is moving files to the NAS, but not deleting them, I'd
> suspect a problem with the call to unlink(). It is either commented-out
> (since such was done at one time in the debugging), is somehow not
> referencing the correct file, or is failing for some reason. If the script
> is not moving files to the NAS, I'd suspect both the copyfile() and
> unlink() are commented out.
>
The os.unlink line was commented out as I had forgotten to un comment it
before.
The script is running now and files are being sent to my NAS drive.

Now here is an interesting thing:

I have just done:
rob@rob-Z97:~$ cd /mnt/CCTV/PiZero
bash: cd: /mnt/CCTV/PiZero: No such file or directory

So then:
rob@rob-Z97:~$ cd /mnt
rob@rob-Z97:/mnt$ ls
WinShare

WinShare is a dataset or folder on my NAS drive

I wonder what happened to the mounted PIZero folder, or am I offtrack.
>

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