Re: Upgrading from very-old Debian

[Jonathan Dowland <jmtd@debian.org>]

On Wed, Nov 29, 2017 at 08:06:10PM +0100, deloptes wrote:
> The release and upgrade notes are sufficient they state upgrade to next
> release and then to next release.

Non-the-less, it's not something that many people will have attempted,
and there are quite likely to be things that might slip through the net.
Not just things within the Debian ecosystem: a machine running Lenny was
presumably installed in or around 2009, so there's nearly 9 years worth
of local sysadmin changes that might have been made.

> I had few problems from wheezy to lenny,

That would be downgrading by two releases. That's bound to be
troublesome.

> but almost no problem from lenny to stretch.

That's the path that OP's friend would be attempting (as lenny is
currently oldoldoldoldstable). I'm glad it worked for you, but I would
still not recommend it to anyone else.

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