volkodav@Xubuntu-15:~$ sudo dpkg -r linux-image-3.19.0-9-generic
[sudo] password for volkodav: 
dpkg: dependency problems prevent removal of linux-image-3.19.0-9-generic:
 linux-image-extra-3.19.0-9-generic depends on linux-image-3.19.0-9-generic.

dpkg: error processing package linux-image-3.19.0-9-generic (--remove):
 dependency problems - not removing
Errors were encountered while processing:
 linux-image-3.19.0-9-generic