I believe the problem may be spotted in those two lines of log:Dec 9 16:08:08 trisquel ntfsresize: ERROR: Very rare fragmentation type detected. Sorry, it's not supported yet. Dec 9 16:08:08 trisquel ntfsresize: Try to defragment your NTFS, perhaps it helps.
Follow the advice: defragment your NTFS partition from Windows and relaunch Trisquel's installer.
