On Fri, Nov 30, 2018 at 10:03:27AM +0100, Geert Stappers wrote: > >UEFI is in use. All ready since August. > > >Did yesterday an `apt upgrade`. > >Computer reported after reboot: "no boot device found". > > >The repair action was entering the hardware through pressing 'F2' during >start. > >Add an UEFI boot device. Label name can be chosen freely. Boot file name >is 'grubx64.efi'. > > >Laptop runs now kernel version 4.18.0-2-amd64. > >Power management ( sleep / suspend / wake-up ) seems to have been changed.
Hi Geert, This sounds like you're seeing exactly the same problem as Helen reported (and demonstrated to me) in #905319. The onboard nvme disk on the XPS 15 isn't properly mapped in the firmware so that new EFI boot variables don't work. grub-install adds an entry pointing at the first "hard disk" which should normally work on most machines. Pending a firmware fix, there is a workaround - install to the removable media path too. See https://wiki.debian.org/UEFI#Force_grub-efi_installation_to_the_removable_media_path for more information. -- Steve McIntyre, Cambridge, UK. st...@einval.com We don't need no education. We don't need no thought control.