I am also attaching the full 3 dmesg if some other differences I could not spot seem significant for you.
** Attachment added: "Boot with SSD only" https://bugs.launchpad.net/ubuntu/+bug/1779827/+attachment/5160959/+files/dmesg1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779827 Title: failure to boot with linux-image-4.15.0-24-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1779827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs