I noticed that Dell BIOS A09 was ancient, so I upgraded to a (slightly) newer version, A16 from 2013. It still crashes with 4.13.0-26-generic but the panic message is different.
** Attachment added: "Screenshot with newer BIOS" https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1742675/+attachment/5035139/+files/IMG_0777.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742675 Title: after upgrade to linux-image-extra-4.13.0-26-generic the system does not start at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1742675/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
