1 2 3 4 5 6 | Fetched 1,366 kB in 1min 16s (17.9 kB/s) W: GPG error: http://ke.archive.ubuntu.com trusty-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com> W: Failed to fetch http://ke.archive.ubuntu.com/ubuntu/dists/trusty-updates/universe/binary-i386/Packages Hash Sum mismatch E: Some index files failed to download. They have been ignored, or old ones used instead. hillary@hillary-Presario-CQ20:~$ |