<snipped> Dear all,
I was getting the error unknown which was messing me up. I finally went to supergrub github page and saw this issue - https://github.com/supergrub/supergrub/issues/35 I downloaded the hybrid image as shared by the author i.e. https://sourceforge.net/projects/supergrub2/files/2.04s2-beta2/super_grub2_disk_2.04s2-beta2/supergrub2-2.04s2-beta2-multiarch-USB.img.zip/download . Did get the familiar orange supergrub menu and was able to boot into 5.2.0-3-amd64 kernel and everything. Now running the update and that will probably take half a day as have missed whole lot of updates. One of the interesting things seems to be that probably one of the MS-Windows updates corrupted the boot entry because as I did - $ sudo update-grub [sudo] password for shirish: Generating grub configuration file ... Found background image: /usr/share/images/desktop-base/desktop-grub.png Found linux image: /boot/vmlinuz-5.2.0-3-amd64 Found initrd image: /boot/initrd.img-5.2.0-3-amd64 Found linux image: /boot/vmlinuz-5.2.0-2-amd64 Found initrd image: /boot/initrd.img-5.2.0-2-amd64 Found linux image: /boot/vmlinuz-4.19.0-5-amd64 Found initrd image: /boot/initrd.img-4.19.0-5-amd64 Found linux image: /boot/vmlinuz-4.19.0-4-amd64 Found initrd image: /boot/initrd.img-4.19.0-4-amd64 Found memtest86 image: /memtest86.bin Found memtest86+ image: /memtest86+.bin Found memtest86+ multiboot image: /memtest86+_multiboot.bin Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Adding boot menu entry for EFI firmware configuration done I find this 'Adding boot menu entry for EFI firmware configuration' interesting statement. I have yet to reboot without the usb to see if it holds. FWIW, efibootmanager is at - $ apt-cache policy efibootmgr efibootmgr: Installed: 15-1+b1 Candidate: 15-1+b1 Version table: *** 15-1+b1 900 900 http://cdn-fastly.deb.debian.org/debian testing/main amd64 Packages 100 http://cdn-fastly.deb.debian.org/debian unstable/main amd64 Packages 100 /var/lib/dpkg/status I also have - $ apt-cache policy grub-efi-amd64 grub-efi-amd64: Installed: 2.04-3 Candidate: 2.04-3 Version table: *** 2.04-3 900 900 http://cdn-fastly.deb.debian.org/debian testing/main amd64 Packages 100 http://cdn-fastly.deb.debian.org/debian unstable/main amd64 Packages 100 /var/lib/dpkg/status The issue might be resolved but still if you want me to dig something or the other, please let me know. -- Regards, Shirish Agarwal शिरीष अग्रवाल My quotes in this email licensed under CC 3.0 http://creativecommons.org/licenses/by-nc/3.0/ http://flossexperiences.wordpress.com E493 D466 6D67 59F5 1FD0 930F 870E 9A5B 5869 609C
