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I remember problems setting up my Lubuntu with UEFI/Legacy boot mode. That was more than a year ago and the system worked fine - until now. For whatever reason, it refuses to boot again.
I went through a number of different recipes involving boot-repair, but it still won't boot. The paste from boot-repair can be found here http://paste.ubuntu.com/10861892/.
My approach was to format my EFI partition again in FAT32 and assign the boot flag to it before running boot-repair. In boot-repair > advanced options > GRUB location, I cannot select my EFI partition (sda1) in the field 'separate /boot partition'. However, it does not complain about not finding the EFI partition. The EFI partition (sda1) also shows up in the /etc/fstab (sda4), after running boot-repair:
# <file system> <mount point> <type> <options> <dump> <pass> # / was on /dev/sda4 during installation UUID=85ae8106-d4ae-49ee-9e77-e93aa86c6e63 / ext4 errors=remount-ro 0 1 # /boot/efi was on /dev/sda1 during installation #UUID=D954-89D5 /boot/efi vfat defaults 0 1 # /home was on /dev/sda5 during installation UUID=ffc890d1-0cd6-4a5b-86c3-b6c8db17a1e1 /home ext4 defaults 0 2 # swap was on /dev/sda3 during installation UUID=507de4f4-fde7-4c5b-badd-66defcbc27f5 none swap sw 0 0 #UUID=d2bb4e60-b497-4cd4-8b8c-04ffe5f3085a /boot ext4 defaults 0 2
In my BIOS, however, I do not find any boot loader that uses UEFI.
I would appreciate any help on this issue.
I went foward and installed rEFInd, which boots, but doesn't find Lubuntu either...
I discovered this post https://askubuntu.com/a/509564/395808, which describes how to do the BIOS/UEFI conversion. Apparently, this works for me.