from sudo apt-get update

W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release  Unable to find expected entry 'main/binary-i386/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.


from software updater

not enough free disk space
The upgrade needs a total of 99.7 M free space on disk '/boot'. Please free at least an additional 71.1 M of disk space on '/boot'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'