This link is what *should* have been easily discoverable for anyone wondering about the vanished version: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262
Ideas: * allow updating USNs even when no new binaries are available, simply because changelogs are *not* * add this possibility to the list of theories ubuntu-security-status (update-manager) helpfully explains when reporting unknown packages * make "DELETED" a more prominent feature on links from USNs (obvious: https://launchpad.net/ubuntu/+source/linux/5.4.0-56.62/+publishinghistory - not obvious: https://launchpad.net/ubuntu/+source/linux/5.4.0-56.62) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-meta in Ubuntu. https://bugs.launchpad.net/bugs/1907761 Title: vanishing kernel 5.4.0-56-generic Status in linux-meta package in Ubuntu: Incomplete Bug description: Kernel version 5.4.0-56-generic has just vanished off the face of the earth, after an update to that version some days ago. This was not updated from "proposed" or anything like that, it was updated in the normal way from "focal-updates". I had to revert several systems to kernel version 5.4.0-54-generic, after apt reported that my installed 5.4.0-56-generic packages were foreign, unknown and unaccounted-for. Have you lost your damn minds? By all means issue a fix for this outrageous situation. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/1907761/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp