As it noted
apt-get -u upgrade
It's useful to run this command with the -u option. This option causes APT to show the complete list of packages which will be upgraded. Without it, you'll be upgrading blindly
After upgrading the packages on the system we may also need to check if there is a new debian version. Type:
apt-get -u dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
The following packages will be upgraded:
apache2-mpm-prefork apache2-utils apache2.2-common apt apt-utils base-files bind9-host dbus dbus-x11 dhcp3-client dhcp3-common dnsutils gnupg gpgv
libapache2-mod-php5 libapr1 libaprutil1 libavcodec51 libavformat52 libavutil49 libbind9-40 libcurl3 libdbus-1-3 libdns45 libexpat1 libfreetype6
libgd2-xpm libgnutls26 libisc45 libisccc40 libisccfg40 libkrb53 liblwres40 libmysqlclient15off libnewt0.52 libpam-modules libpam-runtime libpam0g
libpng12-0 libpq5 libsasl2-2 libssl-dev libssl0.9.8 libvolume-id0 libvorbis0a libvorbisenc2 libvorbisfile3 libxcb-xlib0 libxcb1 libxml2
linux-image-2.6-ixp4xx linux-image-2.6.26-1-ixp4xx linux-libc-dev mt-daapd mysql-common openssl php5 php5-cgi php5-common php5-dev php5-gd
php5-sqlite screen tzdata udev wget whiptail x11-common
68 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 54.6MB of archives.
After this operation, 33.8MB of additional disk space will be used.
Do you want to continue [Y/n]?
Unfortunately that much of disk space is too much for me now. I only have 1 gb of flash as the main drive so it should wait for now. But you might need to upgrade ...