Updating Ubuntu
From ALSwiki
Using apt...
It takes two commands to do a complete update.
- First update the database of available packages:
sudo apt-get update
- Then, upgrade everything:
sudo apt-get upgrade
Some packages will be kept back. In my recent upgrade they were flagged with:
The following packages have been kept back: linux-image-server linux-server openssh-client openssh-server ssl-cert
To see why:
apt-cache policy linux-image-server linux-server openssh-client openssh-server ssl-cert
You'll see a list like:
linux-image-server: Installed: 2.6.22.14.21 Candidate: 2.6.22.15.22 Version table: 2.6.22.15.22 0 500 http://us.archive.ubuntu.com gutsy-updates/main Packages 500 http://security.ubuntu.com gutsy-security/main Packages *** 2.6.22.14.21 0 500 cdrom://Ubuntu-Server 7.10 _Gutsy Gibbon_ - Release i386 (20071016) gutsy/main Packages 500 http://us.archive.ubuntu.com gutsy/main Packages 100 /var/lib/dpkg/status