I am linux total newbie. I would like to install new packages but I am not able to do this with some:
I try
sudo apt-get install libncurses5-dev
E: Package 'libncurses5-dev' has no installation candidate
or
sudo apt-get install kernel-package fakeroot
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package kernel-package is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'kernel-package' has no installation candidate
Same problem for example with samba. My Ubuntu version is:
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux