Chapter 5. Extra steps for Ubuntu Distributions
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Disable Phased updates
sudo emacs /etc/apt/apt.conf.d/99phased-upgradeAnd paste from the source listing.Note
/etc/apt/apt.conf.d/99phased-upgradesourceUpdate-Manager::Always-Include-Phased-Updates true; APT::Get::Always-Include-Phased-Updates true;Source: Askubuntu
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Purge Snap
sudo snap listFor each item listed,
snap removeAfterwards, confirm withpackagenamesnap list.Remove snap and salt the earth:
sudo systemctl stop snapd sudo systemctl disable snapd sudo systemctl mask snapd sudo apt-get purge snapd sudo apt-mark hold snapd