MSGID: <10l37cn$12jog$1@dont-email.me> a614b674
REPLY: <10l29tp$o877$1@dont-email.me> 3a101232
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Subject: Re: Mailutils not shown in Raspbian source ./. Was: Citadel? Courier?
Cyrus? Dovecot? - I just want to backup my emails

On Sat, 24 Jan 2026 11:20:25 +0000 Daniel James wrote:

> On 24/01/2026 01:25, Computer Nerd Kev wrote:
>> As a guess: maybe the Raspbian package repo doesn't have sources for
>> packages they copied from Debian instead of rebuilding themselves?
> 
> Raspbian doesn't copy packages from Debian, it just uses the Debian
> repos. The Raspberry Pi's own repo doesn't contain userspace packages
> unless they're pi-specific.
> 
> The issue is probably that /etc/apt/sources.list only has a line for
> "deb" packages and not "deb-src" packages, by default.
> 
> Such a line is easy to add.
> 
> (If the OP were using Trixie it would be a matter of adding "deb-src"
> after "deb" on the line starting "Types:" in
> /etc/apt/sources.list.d/debian.sources).

I just modified the list of sources in /etc/apt/sources.list and /etc/apt/
sources.list.d/debian.sources and tried to upgrade from bullseye to trixie 
directly, but this failed. Maybe this was not a good idea.

At least the machine boots and runs properly, but no further update 
possible. - Is there a way to revert back and first upgrade to bookworm 
and then to trixie, or is the only proper solution to set up a new 
install?

Thanks!

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