I had always assumed that running
apt-get update followed by
apt-get upgrade was just the command line version of running the software-updater; however, running the software updater results in the following packages needing updating:
Complete Generic Linux kernel Header files relates to Linux kernel version 3.2.0 Linux kernel headers for version 3.2.0 on 64 bit x86 SMP Generic Linux kernel headers Linux kernel image for version 3.2.0 on 64 bit x86 SMP General Linux kernel image Linux Kernel Headers for development ISC DHCP client common file used by all the isc-dhcp* packages LightDM GObject client library graphical boot animation and logger-shared libraries DisplayManager graphical boot animation and logger-main package graphical boot animation and logger-label control graphical boot animation and logger-ubuntu-logo theme (-logo) graphical boot animation and logger-ubuntu-logo theme (-text) Jabber/XMPP connection manager (53.9 MB)
apt-get update and
apt-get upgrade results in:
Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: linux-generic linux-headers-generic linux-image-generic The following packages will be upgraded: isc-dhcp-client isc-dhcp-common liblightdm-gobject-1-0 libplymouth2 lightdm linux-libc-dev plymouth plymouth-label plymouth-theme-ubuntu-logo plymouth-theme-ubuntu-text telepathy-gabble 11 upgraded, 0 newly installed, 0 to remove and 3 not upgraded. Need to get 2,594 kB of archives. After this operation, 2,048 B of additional disk space will be used.
Can anyone explain what's going on?