Confirmed here, with several different repos: Ign http://ftp.no.debian.org jessie InRelease/partial/ftp.no.debian.org_debian_dists_jessie_InRelease into data and signature failed Fetched 2,823 B in 9s (307 B/s) E: GPG error: http://ftp.no.debian.org jessie InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?) -- Paolo Cavallini - www.faunalia.eu QGIS & PostGIS courses: http://www.faunalia.eu/training.html