The robotic message tells me to change the status to confirmed after adding the previous comment, but the instructions there say that the confirmed status is supposed to be done by someone else.
By the way, my current theory (based on weak understanding) is that there might be some logs of the boot failures somewhere else, but I do not know where they are. Under Linux I can only boot under the 0-13 kernel, and the problem appeared with the 0-14 kernel. ** Changed in: linux (Ubuntu) Status: Triaged => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1815258 Title: 4.18.0-14-generic unbootable on Toshiba Status in linux package in Ubuntu: Confirmed Bug description: After the update for the 4.18.0-14-generic kernel the machine freezes on booting. Machine still books under the 0-13 kernel. Booting in Recovery Mode seems go normally to the Recovery Menu. At that point it reports "Starting Avahi mDNS-SD Stack" and gets an OK response. That is repeated with another OK. Then it says "Starting Daily apt upgrade and clean activities" followed by an OK. Next is a second attempt for the same "apt upgrade" and it appears to be frozen. No OK ever received and no further progress towards booting. Not sure how additional details can be acquired. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1815258/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp