MSGID:  f8a362fc   
   REPLY: <20251216093548.4c0e67bf@N22> 6ace4fd1   
   PID: PyGate 1.5.2   
   TID: PyGate/Linux 1.5.2   
   CHRS: ASCII 1   
   TZUTC: 0000   
   REPLYADDR invalid@invalid.invalid   
   REPLYTO 3:633/10 UUCP   
   attend  writes:   
   > Thanks for your reply. I was thinking it could be a problem in my   
   > sources.list, but it's useful to show the error messages and my   
   > sources.list as you said.   
   >   
   > Sources.list:   
   >   
   > deb http://raspbian.raspberrypi.org/raspbian/ trixie main contrib   
   > non-free rpi    
   > deb http://archive.raspberrypi.org/debian/ trixie main   
   > # Uncomment line below then 'apt-get update' to enable 'apt-get source'   
   > #deb-src http://raspbian.raspberrypi.org/raspbian/ trixie main contrib   
   > non-free rpi   
   >   
   > Error message:   
   >   
   > @rpi4:/etc/apt# apt update   
   > Hit:1 http://raspbian.raspberrypi.org/raspbian trixie InRelease   
   > Get:2 http://archive.raspberrypi.org/debian trixie InRelease [54.8 kB]      
   > Err:2 http://archive.raspberrypi.org/debian trixie InRelease   
   >   Sub-process /usr/bin/sqv returned an error code (1), error message   
   > is: Missing key CF8A1AF502A2AA2D763BAE7E82B129927FA3303E, which is   
   > needed to verify signature.   
   > Hit:3 https://pkg.cloudflare.com/cloudflared any InRelease   
   > Warning: OpenPGP signature verification failed:   
   > http://archive.raspberrypi.org/debian trixie InRelease: Sub-process   
   > /usr/bin/sqv returned an error code (1), error message is: Missing key   
   > CF8A1AF502A2AA2D763BAE7E82B129927FA3303E, which is needed to verify   
   > signature.   
   > Error: The repository 'http://archive.raspberrypi.org/debian trixie   
   > InRelease' is not signed.   
   > Notice: Updating from such a repository can't be done securely, and is   
   > therefore disabled by default.   
   > Notice: See apt-secure(8) manpage for repository creation and user   
   > configuration details.   
   >   
   > I replaced bookworm to trixie in file sources.list when I upgraded   
   > my system. The error message came out after upgrade completed.    
      
   What do the following output?   
      
   dpkg --audit   
      
   dpkg -l libc6 raspberrypi-archive-keyring   
      
   --    
   https://www.greenend.org.uk/rjk/   
      
   --- PyGate Linux v1.5.2   
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)   
   SEEN-BY: 105/81 106/201 128/187 129/14 305 153/7715 154/110 218/700   
   SEEN-BY: 226/30 227/114 229/110 112 134 200 206 275 300 317 400 426   
   SEEN-BY: 229/428 470 616 664 700 705 266/512 291/111 292/854 320/219   
   SEEN-BY: 322/757 342/200 396/45 460/58 633/10 280 414 418 420 422   
   SEEN-BY: 633/509 2744 712/848 770/1 902/26 2320/105 5020/400 5075/35   
   PATH: 633/10 280 229/426