After updating the resolv.conf file (it was in /etc/ but only had comented "# Generated by NetworkManager", i copied the contents of the live usb config) I can connect to the repository and download, but at the time of extracting libreoffice-common the process gets Terminated (killed).
The issue in the first place of the system freeze and crash was free space related, bc the system partition was full.
I cleared some space and the OS boots, but my user desktop after login is still broken.