The installation went fine but when I rebooted, in spite of keeping my fingers crossed, I was greeted with:
Code: Select all
GNU GRUB version 2.02~bet2-38ubuntu3.22
Minimal BASH-like line editing is supported. For the first word, TAB lists possible command command completions. Anywhere else TAB lists possible device or file completions.
I haven't looked at this grub prompt thing for a very long time but I was lucky to find what I was looking in a post here so I continued:
Code: Select all
grub> initrd (hd0,01)/boot/initrd
Code: Select all
alloc magic is broken at 0x72433460: 0
Aborted. press any key to escape.
Whereupon I was able to select & boot Debian. I didn't know what the old ubuntu entry was doing there, but little did I know that it was causing the problem. I used a Grub Rescue disk called "RESCATUX" but after it reported that Grub had been fixed, back came the same grub prompt. Then it occurred to me to get rid of the ubuntu entry and afterBoot Options Menu
ubuntu (TOSHIBA MQQ1abf050)
debian (TOSHIBA MQQ1abf050)
Boot From EFI File
↑ and↓ to change option, ENTER to select an option.
press F10 to BIOS Setup Options, ESC to exit.
Code: Select all
# cd /boot/efi/EFI
Code: Select all
# rm -rf ubuntu