Comment 4 for bug 1876733

Never mind what I wrote. I was seeing so many differences in the boot load that I went ahead and wiped the drive clean, set the zero fill option, reset the MBR and reformatted as ext4. Grab the up to date ISO, and re-installed 20.04 LTS. I let the install run as a normal full install, and the partitions that completed were as first noticed. sda1 vfat, sda2 extended, sda5 ext4. So that IS the default installer locations. Had never seen that arrangement on Ubuntu ever, so I assumed the arrangement were based on a previous Win10 partition. I was incorrect and apologize for the bug tracker. I guess the real answer here is to not run boot repair on a new install, as it will put the boot files in the wrong place and effect booting. In closing, as stated above "the reporter is confused".

Can we know why this partition arrangement was needed?