New answers tagged raspbian-jessie
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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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