From: no_reply@dipl-ing-kessler.de   
      
   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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