1. How can I backup my Debian 3.1 server before upgrading to 4.0?

# cat /etc/debian_version
3.1

# uname
2.6.8-2-386 #1 Tue Aug 16 12:46:35 UTC 2005 i686 GNU/Linux


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2. How can I upgrade a server Sarge in productiopn to Etch? I do not have a 
graphic environment. Really important is just samba, iptables and  squid.


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3. Every night, the server tries to upgrades itself by: 
00 04 * * * root apt-get update && apt-get -y upgrade && apt-get -y dist-upgrade

But I receive the following error messagem:
 
Teh following packages are going to kept:
  file libkrb53 libmagic1
0 packages updated, 0 packages instaled, 0 to be removed and 3 not updated.

The three packages are importante, once the server is not yet upgraded to 
version 4?



Thanks,

Valdir

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