Fix unknown media all type when updating:
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shoes this error:
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'

try
sudo rm /usr/share/mime/packages/kde.xml
sudo update-mime-database /usr/share/mime

https://askubuntu.com/questions/456183/what-does-unknown-media-type-in-type-all-all-mean
Origonal Creation date in Vivaldi: 18 Augeust 2018 @ 18:27