Isso pode acontecer quando o espelho de repo está fora de sincronia. Mude os espelhos ou espere um dia e veja se o seu espelho alcançou.
Se você quiser alterar os espelhos, tente os tutoriais nas respostas a estas perguntas:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
libsdl-ttf2.0-0 libunistring0:i386 python-numpy python-pygame deluge-gtk
libsdl-mixer1.2 libgomp1:i386 liblapack3gf deluge-common libmikmod2
libcroco3:i386 libgettextpo0:i386 libblas3gf libgfortran3 libsmpeg0
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
linux-generic
The following packages will be upgraded:
linux-generic
1 upgraded, 0 newly installed, 0 to remove and 212 not upgraded.
1 not fully installed or removed.
Need to get 0 B/1,722 B of archives.
After this operation, 1,024 B of additional disk space will be used.
Do you want to continue [Y/n]? y
dpkg: dependency problems prevent configuration of linux-generic:
linux-generic depends on linux-image-generic (= 3.2.0.37.45); however:
Version of linux-image-generic on system is 3.2.0.40.48.
linux-generic depends on linux-headers-generic (= 3.2.0.37.45); however:
Version of linux-headers-generic on system is 3.2.0.40.48.
dpkg: error processing linux-generic (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
linux-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
Isso pode acontecer quando o espelho de repo está fora de sincronia. Mude os espelhos ou espere um dia e veja se o seu espelho alcançou.
Se você quiser alterar os espelhos, tente os tutoriais nas respostas a estas perguntas: