[Owncloud] upgrade from 4.5 to 5.0 lost all files

[Andrei Mikhailovsky]

Hi, 

I've recently ran "apt-get upgrade" on my Ubuntu 12.04 server and amongst other things it updated the ownCloud packages to the latest 5.0.0 release. As a result all my data has disappeared from the clients as well as from the web interface. I can see that there is about 15gb out of 17gb of data on the file server's data folder, but nothing is visible from the web interface or clients. Could anyone suggest how to recover the data? 

Many thanks in advance 

Andrei 
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