I assume you used the 24.04 preloaded image. After upgrading to 25.10, the sources.list was changed to "questing". If you need the headers packages, please add the Noble sources.list again. Hope this helps!
$ cat /etc/apt/sources.list.d/ubuntu.sources Types: deb URIs: http://archive.ubuntu.com/ubuntu/ Suites: noble noble-updates noble-backports Components: main restricted universe multiverse Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg Types: deb URIs: http://security.ubuntu.com/ubuntu/ Suites: noble-security Components: main restricted universe multiverse Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg $ sudo apt update $ sudo apt install -y linux-headers-oem-24.04d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2147081 Title: Cannot install displaylink-driver because of missing kernel headers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.17/+bug/2147081/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
