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Re: how to update Debian OS properly



On Vi, 25 mai 12, 14:49:26, Ralf Mardorf wrote:
> On Fri, 2012-05-25 at 17:37 +0500, Muhammad Yousuf Khan wrote:
> > deb http://security.debian.org/ squeeze/updates main
> > deb-src http://security.debian.org/ squeeze/updates main
> > deb http://backports.debian.org/debian-backports squeeze-backports main
> > deb http://ftp.de.debian.org/debian sid main
> 
> You're issue is related to the sid repository. If you need something
> from sid, then uncomment it and after that comment it. Don't feel secure
> using pinning.

I don't agree. IMNSHO pinning (or simply setting Default-Release in 
apt.conf) is the correct way to use a mixed environment, because:

- installing even one package from the other repository can have 
  unwanted side effects without pinning. Use correct pinning and the 
  '-t' switch instead
- one will not be aware of any possibly security related updates[1]

[1] even unstable has some degree of security support, because the 
maintainer is usually aware of any stable security updates and will in 
most cases update the package in unstable too. Such packages are 
uploaded with 'urgency=high' and will also migrate faster to testing if 
possible.

Kind regards,
Andrei
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