[mythtv-users] Waiting for database upgrade schema lock error

Barry Martin barry3martin at gmail.com
Sun Jul 25 00:59:17 UTC 2021

Hi Folks!

I’m not sure what went wrong. Have two Backends, the current one is OS = 
Ubuntu 18.04, running MythTV v 30, named “BE3”. Trying to bring a new 
one up called “BE4”, running OS = Ubuntu 20.04 and MythTV v 31.

On BE4 was going to run the new schema but there was a message about BE3 
so answered ‘no’. Unplugged the Ethernet cable of BE4, then ran the 
schema update. (Seems there’s another problem but worry about that later.)

The problem is any Frontend (right now all to BE3) that was off or not 
on the MythTV screen will not connect. At Terminal mythfrontend, runs a 
series of commands until gets to the one something about to borderless 
fullscreen and the one after, then sits for a minute or so. Eventually 
continues, showing 30 or so “Waiting for database upgrade schema lock” 

There is one Frontend which had Myth loaded and that is the only one 
able to watch currently.

So what do I need to do to get the BE3 Frontends to work again??



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