[mythtv-users] How can I rebuild show thumbnails for mythweb?

[Stephen Worthington]

On Tue, 15 Oct 2019 23:00:32 -0400, you wrote:

>So, I'm migrating to a new, larger, drive. Work was getting rid of some 4TB
>drives, and I just needed 2 more to complete the RAID. 
>
>So I used rsync to copy all my recordings off to a temp location then copied
>them back to the original after I rebuilt the RAID with the new disks, but I
>have run in to an issue.
>
> 
>
>https://pasteboard.co/ICaWi6J.png
>
> 
>
>As you can see in this image, the thumbnails for 2 of these recordings are
>"missing" in mythweb. The thing is that the PNG files for all 3 are back in
>the proper locations as well as the TS file. I cannot explain why they are
>not showing on the page.
>
>Everything before Sept 29 shows as there, from Sept 29 to Oct 1 they are
>intermittent, and from Oct 2 to 12, all of them are missing. From Oct 13 to
>today they are there, but those are recordings made after the migration.
>
> 
>
>Is there a way to regenerate these? In the past I was able to just delete
>the PNG's, and they would rebuild the next load of the page. But that did
>not work this time, so I copied them back.
>
> 
>
>Marc

Have you checked for ownership or permissions problems?

I believe that the .png files are created using mythpreviewgen, which
you can run manually.  But I have never done that.