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Enter this in Terminal : dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n . To delete a package , enter "sudo apt-get purge -y packagename ". clearing the softwares wolfram,libreoffice and oracle-java can free up 1GB space . delete wolfram : "sudo apt-get purge -y wolfram-engine". delete libreoffice : "sudo apt-get purge -...


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I ran into this problem when I ditch dhcpcd and choose systemd-networkd as network manager. First, check how the wpa_supplicant service is launched by sudo systemctl status, if it indicates /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant , then you got the problem. The wpa_supplicant service requires interface and drivers to run properly. This is how ...


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I had the same problen. I had previously configured the Pi as an Access Point. So there was no entry in /etc/network/interfaces needed and none there. After I added a network device to /etc/network/interfaces and rebooted, my problem disappeared sudo cat > /etc/network/interfaces.d/20-wifi auto wlan0 iface wlan0 inet manual wpa-conf /etc/wpa_supplicant/...


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