Dear Pascal, I saw your answer at https://lists.debian.org/debian-user/2019/11/msg00059.html .
I did use supergrub disk image https://www.supergrubdisk.org/super-grub2-disk/ and was able to get grub rescue prompt. Now I guess I have to follow - https://askubuntu.com/questions/192621/grub-rescue-prompt-repair-grub -- 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
