Graphic drivers and basic update error - PPAs (daniruiz/flat-remix and snwh/pulp)

[nikhilt222]

Hit:1 https://repo.radeon.com/amdgpu/6.4.1/ubuntu noble InRelease
Hit:3 https://repo.radeon.com/rocm/apt/6.4.1 noble InRelease
Hit:4 https://packages.mozilla.org/apt mozilla InRelease
Hit:5 https://dl.google.com/linux/chrome/deb stable InRelease
Ign:6 http://linux.dropbox.com/ubuntu noble InRelease
Hit:7 http://us.archive.ubuntu.com/ubuntu noble InRelease
Hit:8 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:2 https://repo.linuxliteos.com/linuxlite galena InRelease
Ign:9 https://ppa.launchpadcontent.net/danirui...mix/ubuntu noble InRelease
Hit:10 http://us.archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:11 http://linux.dropbox.com/ubuntu noble Release
Hit:12 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu noble InRelease
Hit:13 https://ppa.launchpadcontent.net/mozilla...ext/ubuntu noble InRelease
Get:14 http://us.archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
Ign:15 https://ppa.launchpadcontent.net/snwh/pulp/ubuntu noble InRelease
Err:16 https://ppa.launchpadcontent.net/danirui...mix/ubuntu noble Release
  404  Not Found [IP: 185.125.190.80 443]
Err:18 https://ppa.launchpadcontent.net/snwh/pulp/ubuntu noble Release
  404  Not Found [IP: 185.125.190.80 443]
Get:19 http://us.archive.ubuntu.com/ubuntu noble-backports/main amd64 Components [7,084 B]
Get:20 http://us.archive.ubuntu.com/ubuntu noble-backports/restricted amd64 Components [216 B]
Get:21 http://us.archive.ubuntu.com/ubuntu noble-backports/universe amd64 Components [16.4 kB]
Get:22 http://us.archive.ubuntu.com/ubuntu noble-backports/multiverse amd64 Components [212 B]
Reading package lists...
E: The repository 'https://ppa.launchpadcontent.net/daniruiz/flat-remix/ubuntu noble Release' does not have a Release file.
E: The repository 'https://ppa.launchpadcontent.net/snwh/pulp/ubuntu noble Release' does not have a Release file.
W: https://ppa.launchpadcontent.net/mozilla.../InRelease: Signature by key 0AB215679C571D1C8325275B9BDB3D89CE49EC21 uses weak algorithm (rsa1024)
W: https://ppa.launchpadcontent.net/mozilla.../InRelease: Signature by key 0AB215679C571D1C8325275B9BDB3D89CE49EC21 uses weak algorithm (rsa1024)

[stevef]

The version of Linux Lite on your system is based on an Ubuntu release named noble. You have added some software (daniruiz/flat-remix and snwh/pulp) which are from PPAs (Personal Project Archives). The PPAs for daniruiz/flat-remix and snwh/pulp do not have releases compatible with noble. These conflicts are causing the update process to error.

The incompatible daniruiz/flat-remix and snwh/pulp software should be removed from the system.

After removing the daniruiz/flat-remix and snwh/pulp software, ensure that the daniruiz/flat-remix and snwh/pulp PPA references are removed from the update list. Removing the PPA references from the update list should allow the update to run.

See this link for the Linux Lite manual references on how to do this.
https://www.linuxliteos.com/manual/software.html#pparem

When using PPA software, it is important that the PPA has a release that is compatible with the OS.

See this link for Linux Lite manual advice on selecting and installing PPAs
https://www.linuxliteos.com/manual/software.html#ppa

As you are on Linux Lite 7.4, ensure that any PPA you consider installing offers a version compatible with Ubuntu noble.