Download from Repository failed

Ubuntu Version: Ubuntu 24.04.3 LTS

Desktop Environment : XFCE

Problem Description:
Since my last update I receive “Failed to download Repository information”
When trying " sudo apt update " to get more detailed information
it appears that apparently the public Key for the repository is not matching anymore .
Sofar I only tried to change the repository server via the “software & update” application without success

How can I repair / fix this ?

please See full printout from " sudo apt update " below

Screenshots or Error Messages:


Get:1 https://dl.google.com/linux/chrome/deb stable InRelease [1.825 B]
Get:2 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates InRelease [126 kB]
Get:3 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports InRelease [126 kB]
Get:4 https://dl.google.com/linux/chrome/deb stable/main amd64 Packages [1.212 B]
Get:5 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security InRelease [126 kB]
Get:6 https://esm.ubuntu.com/apps/ubuntu noble-apps-security InRelease [7.613 B]
Get:7 https://esm.ubuntu.com/apps/ubuntu noble-apps-updates InRelease [7.480 B]
Get:8 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble InRelease [256 kB]
Get:9 http://lenovo.archive.canonical.com noble InRelease [633 kB]            
Get:10 https://esm.ubuntu.com/infra/ubuntu noble-infra-updates InRelease [7.473 B]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages [526 kB]
Get:18 https://esm.ubuntu.com/infra/ubuntu noble-infra-security InRelease [7.474 B]
Ign:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Get:20 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main Translation-en [278 kB]
Get:21 https://esm.ubuntu.com/apps/ubuntu noble-apps-security/main i386 Packages [124 kB]
Get:22 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Components [175 kB]
Get:23 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 c-n-f Metadata [15,3 kB]
Ign:24 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Packages
Ign:25 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted i386 Packages
Get:26 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted Translation-en [426 kB]
Get:26 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted Translation-en [426 kB]
Get:28 https://esm.ubuntu.com/apps/ubuntu noble-apps-security/main amd64 Packages [240 kB]
Get:29 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Components [212 B]
Get:30 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 c-n-f Metadata [544 B]
Ign:31 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe i386 Packages
Ign:32 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Packages
Get:33 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Translation-en [299 kB]
Get:33 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Translation-en [299 kB]
Get:33 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Translation-en [299 kB]
Get:33 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Translation-en [299 kB]
Get:37 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Components [378 kB]
Get:38 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Icons (48x48) [232 kB]
Get:39 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Icons (64x64) [363 kB]
Get:39 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe Icons (64x64) [363 kB]
Get:41 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 c-n-f Metadata [31,1 kB]
Get:41 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 c-n-f Metadata [31,1 kB]
Get:41 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 c-n-f Metadata [31,1 kB]
Ign:44 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse i386 Packages
Get:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages [32,0 kB]
Get:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages [32,0 kB]
Ign:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:48 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse Translation-en [5.500 B]
Get:54 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Components [940 B]
Get:55 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 c-n-f Metadata [488 B]
Ign:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Get:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages [32,6 kB]
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Get:66 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Components [7.088 B]
Get:67 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/restricted amd64 Components [216 B]
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Get:70 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Components [19,2 kB]
Get:71 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/multiverse amd64 Components [212 B]
Get:71 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/multiverse amd64 Components [212 B]
Get:71 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/multiverse amd64 Components [212 B]
Get:71 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/multiverse amd64 Components [212 B]
Ign:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Get:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages [326 kB]
Get:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages [326 kB]
Get:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages [326 kB]
Ign:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Get:80 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main Translation-en [195 kB]
Get:81 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Components [21,6 kB]
Get:82 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 c-n-f Metadata [8.744 B]
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Get:85 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted Translation-en [408 kB]
Get:85 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted Translation-en [408 kB]
Get:85 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted Translation-en [408 kB]
Get:85 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted Translation-en [408 kB]
Get:89 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Components [212 B]
Get:90 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 c-n-f Metadata [520 B]
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Get:93 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe Translation-en [195 kB]
Get:93 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe Translation-en [195 kB]
Get:93 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe Translation-en [195 kB]
Get:93 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe Translation-en [195 kB]
Get:97 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Components [52,2 kB]
Get:97 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Components [52,2 kB]
Get:97 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Components [52,2 kB]
Get:97 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Components [52,2 kB]
Get:101 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 c-n-f Metadata [18,0 kB]
Get:101 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 c-n-f Metadata [18,0 kB]
Get:101 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 c-n-f Metadata [18,0 kB]
Get:101 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 c-n-f Metadata [18,0 kB]
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Get:107 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse Translation-en [5.228 B]
Get:108 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Components [208 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Get:109 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 c-n-f Metadata [384 B]
Ign:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Get:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages [8.514 kB]
Get:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages [8.514 kB]
Get:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages [8.514 kB]
Get:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages [8.514 kB]
Get:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages [8.514 kB]
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Err:9 http://lenovo.archive.canonical.com noble InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D4D1EAED36962F69 NO_PUBKEY F9FDA6BED73CDC22
Ign:24 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Packages
Ign:25 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted i386 Packages
Ign:31 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe i386 Packages
Ign:32 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Packages
Ign:44 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse i386 Packages
Ign:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages
Ign:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Ign:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Ign:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Ign:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Ign:24 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Packages
Ign:25 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted i386 Packages
Ign:31 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe i386 Packages
Ign:32 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Packages
Ign:44 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse i386 Packages
Ign:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages
Ign:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Ign:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Ign:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Ign:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Ign:24 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Packages
Ign:25 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted i386 Packages
Ign:31 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe i386 Packages
Ign:32 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Packages
Ign:44 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse i386 Packages
Ign:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages
Ign:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Ign:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Ign:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Ign:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Ign:24 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted amd64 Packages
Ign:25 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/restricted i386 Packages
Ign:31 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe i386 Packages
Ign:32 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/universe amd64 Packages
Ign:44 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse i386 Packages
Ign:45 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/multiverse amd64 Packages
Ign:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Err:11 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main i386 Packages
  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
Ign:19 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-updates/main amd64 Packages
Ign:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Ign:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Err:56 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main amd64 Packages
  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
Ign:57 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/main i386 Packages
Ign:68 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe i386 Packages
Ign:69 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-backports/universe amd64 Packages
Err:75 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main i386 Packages
  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
Ign:79 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/main amd64 Packages
Ign:83 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted i386 Packages
Ign:84 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/restricted amd64 Packages
Ign:91 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe i386 Packages
Ign:92 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/universe amd64 Packages
Ign:105 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse amd64 Packages
Ign:106 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble-security/multiverse i386 Packages
Err:119 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main i386 Packages
  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
Ign:120 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/main amd64 Packages
Ign:121 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted i386 Packages
Ign:122 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/restricted amd64 Packages
Ign:123 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe i386 Packages
Ign:129 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/universe amd64 Packages
Ign:130 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse amd64 Packages
Ign:131 http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports noble/multiverse i386 Packages
Fetched 4.800 kB in 5s (925 kB/s)                             
Reading package lists... Done
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://lenovo.archive.canonical.com noble InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D4D1EAED36962F69 NO_PUBKEY F9FDA6BED73CDC22
W: Failed to fetch http://lenovo.archive.canonical.com/dists/noble/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D4D1EAED36962F69 NO_PUBKEY F9FDA6BED73CDC22
E: Failed to fetch http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports/dists/noble-updates/main/binary-i386/Packages  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
E: Failed to fetch http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports/dists/noble-backports/main/binary-amd64/Packages  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
E: Failed to fetch http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports/dists/noble-security/main/binary-i386/Packages  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
E: Failed to fetch http://ftp.tu-chemnitz.de/pub/linux/ubuntu-ports/dists/noble/main/binary-i386/Packages  404  Not Found [IP: 2001:638:911:b0e:134:109:228:1 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.
N: Missing Signed-By in the sources.list(5) entry for 'http://lenovo.archive.canonical.com'

You can find Ubuntu Archive Mirrors on this page - Mirrors : Ubuntu

Archive Mirrors will provide support for amd64 and i386 architectures.

Your messages show ubuntu-ports, where the port architectures are armhf, arm64, s390x, ppc64el, riscv64.

I didn’t check all your lines, but most of your ubuntu-ports lines refer to amd64 or i386 which aren’t a ported architecture; thus you’re trying to use an incorrect mirror/site. Switch to a mirror that provides support for your architecture. (FYI: A quick look at https://ftp.tu-chemnitz.de/pub/linux/ and you may get away with just removing the ‘-ports’ too, but i didn’t confirm this sorry).

https://help.ubuntu.com/community/SupportedArchitectures

Thank you for your reply.

In the mean time I have changed back to the “main” repository Server and the system was able to fix quite a lot of packages .
I still miss a few and I do not understand why some still miss the public Key .

The mistake regarding the ports Amd64 or i386 must come from somewhere else I think. I am pretty sure that both a part of the main core package but are not compiled as extra ports.

Still looking for a solution to correct the Key issue for external special Packages like the Lenovo drivers

Regards

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