I have managed to get 20.04 booting natively.
Not too sure how though as I reinstalled grub*-common after booting non-UEFI to 16.04, which didn't allow booting directly, so I used another utililty...
Type: Posts; User: losange13; Keyword(s):
I have managed to get 20.04 booting natively.
Not too sure how though as I reinstalled grub*-common after booting non-UEFI to 16.04, which didn't allow booting directly, so I used another utililty...
getting further now, although not quite there - I'm able to boot in BIOS mode to my 18.04 on /dev/sda1 using a utility from Ultimate Boot CD iso.
UBCD iso boot -> Boot Management -> Smart Boot...
Sorry - corrected the pastebin like above, but will try to boot live in BIOS mode...
It definitely says 'Legacy' in the BIOS. This is just so confusing - I now find that running boot-repair (after usb boot in 20.04) it seems to suggest it will reinstall grub-efi-amd64-signed etc....
Still no luck I'm afraid.
I moved the boot flag back to sda3 and eventually completely reinstalled grub via:
root@ubuntu:~# mount /dev/sda1 /mnt
root@ubuntu:~# mount -t proc proc /mnt/proc...
I had a working ubuntu 16.04 LTS and windows 10 dual boot setup with spare space, so after booting up with a usb 20.04 image to ensure it worked fine I decided to install it to a new empty partition....