14.04 - How do I fix dependency and tar problems with linux-image-extra* package?

Ubuntu 14.04.2 LTS Trusty Tahr
linux-image-extra-3.13.0-49-generic_3.13.0-49.56 is current package

The Ubuntu Software Updater is set to check for updates daily. The last set of updates included linux-image-extras*. However, linux-image-extra-3.13.0-49-generic_3.13.0-49.81_i386.deb could not be installed, owing first to a tar unpack problem and second to unresolved dependencies.

Ubuntu Software Centre produced this output (in part):

installArchives() failed: (Reading database ...     
(Reading database ... 5%  
...  
(Reading database ... 100%  
(Reading database ... 523867 files and directories currently installed.)  
Preparing to unpack .../linux-image-extra-3.13.0-49-generic_3.13.0-49.81_i386.deb ...  
Unpacking linux-image-extra-3.13.0-49-generic (3.13.0-49.81) ...  

dpkg: error processing archive /var/cache/apt/archives/linux-image-extra-3.13.0-49-generic_3.13.0-49.81_i386.deb (--unpack):  
 corrupted filesystem tarfile - corrupted package archive
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)  
Errors were encountered while processing:  
 /var/cache/apt/archives/linux-image-extra-3.13.0-49-generic_3.13.0-49.81_i386.deb  
dpkg: dependency problems prevent configuration of linux-image-generic:  
 linux-image-generic depends on linux-image-extra-3.13.0-49-generic; however:  
  Package linux-image-extra-3.13.0-49-generic is not installed.  

dpkg: error processing package linux-image-generic (--configure):  

 dependency problems - leaving unconfigured

After looking through apparently similar questions, I tried some of the suggested solutions:

$ sudo apt-get clean  
$ sudo apt-get autoremove  
$ sudo apt-get -f install  
$ sudo apt-get update  

$ sudo apt-get upgrade  

I am somewhat hampered in pursuing further solutions because after the above attempts, connection to my wifi router was lost and I can't restore it. The cordless mouse also stopped working, and the display is too wide (behaving as though the aspect ratio is 16:9, instead of the 4:3 it actually is). The system preferences are correct for all these problems, so possibly some drivers have gone AWOL.