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Warning: Stopping snapd.service, but it can still be activated by:
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Processing triggers for man-db (2.7.5-1) ...
dpkg: error processing package linux-image-4.4.0-75-generic (--configure):
 package linux-image-4.4.0-75-generic is already installed and configured
dpkg: error processing package linux-image-extra-4.4.0-75-generic (--configure):
 package linux-image-extra-4.4.0-75-generic is already installed and configured