I want to install QGIS 2.99.x master on a Raspberry Pi 3, but there is something going wrong. First I've added the following lines to
deb http://qgis.org/debian-nightly jessie main deb-src http://qgis.org/debian-nightly jessie main
Unfortunately, this installs QGIS 2.4 Chugiak after running
sudo apt-get update and
sudo apt-get install qgis python-qgis qgis-plugin-grass.
I noticed the following error in the terminal when running
sudo apt-get update:
W: GPG error: http://qgis.org jessie InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 073D307A618E5811 W: Failed to fetch http://qgis.org/debian-nightly/dists/jessie/main/binary-armhf/Packages 404 Not Found [IP: 126.96.36.199 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
I tried to fix this by adding the key manually (see http://hub.qgis.org/issues/8404):
gpg --keyserver keyserver.ubuntu.com --recv 073D307A618E5811 gpg --export --armor 073D307A618E5811 | sudo apt-key add -
sudo apt-get update throws a new error:
W: Failed to fetch http://qgis.org/debian-nightly/dists/jessie/InRelease Unable to find expected entry 'main/binary-armhf/Packages' in Release file (Wrong sources.list entry or malformed file) E: Some index files failed to download. They have been ignored, or old ones used instead.