How To Upgrade A Debian Etch System (Server & Desktop) To Debian Lenny
This article shows how you can upgrade a system running Debian Etch to Debian Lenny. It is intended for both server and desktop systems.
I do not issue any guarantee that this will work for you!
1 Preliminary Note
You should take a backup of your Debian Etch system (you can find some suitable tutorials for this in the Backup category), just in case something goes wrong (but the upgrade worked fine for me).
2 Install The Latest Etch Updates
Before we upgrade to Lenny, we install the latest updates for Etch.
Make sure that your /etc/apt/sources.list uses etch, not stable (because lenny is the new stable), e.g. as follows:
deb http://ftp2.de.debian.org/debian/ etch main
Then install the updates as follows:
3 Modify /etc/apt/sources.list To Use Lenny
After we have installed the latest Etch updates, we open /etc/apt/sources.list...
... and replace all etch references with lenny:
deb http://ftp2.de.debian.org/debian/ lenny main
Then update the packages database:
4 Doing The Upgrade
Next we install the Lenny versions of dpkg, aptitude, and apt because their Etch versions are often unable to handle the upgrade to Lenny:
aptitude install dpkg aptitude apt
Then we do a minimal system upgrade (because a full upgrade might cause some conflicts at this stage):
If this is a desktop system, you should now check if the package libfam0c102 is installed:
dpkg -l libfam0c102 | grep ^ii
If it is, install its Lenny version now:
aptitude install libfam0
Afterwards, we can start the full distribution upgrade:
(This command is the same as aptitude dist-upgrade.)
Afterwards, reboot the system:
After the reboot, check your new kernel:
It should display Lenny's 2.6.26 kernel, e.g.:
server1:~# uname -r
And /etc/debian_version should now contain 5.0:
server1:~# cat /etc/debian_version