OK got root
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 Removing the /var/lib/dpkg directory
 Reverting to the previous package states
cp: impossibile eseguire stat di "/var/lib/dpkg/available-old": File o directory non esistente
 Removing the cached lists of packages
 Remake directories that apt will not remake itsself
 Removing cached .deb files in case any are corrupted
 Updating the list of available package versions
 Removing dpkg's list of available packages
 Finishing configuring any packages which have yet to be configured.
 Installing any missing dependencies
Done!