Installing without ESP partition seem to be currently impossible, so please allow its creation and then GRUB will be installed on legacy and/or EFI system.
The ESP partition was introduced after 18.04 LTS. For now all systems have two partitions after installation - ESP and rootfs.
@Jags Desai (jagsdesai)
Installing without ESP partition seem to be currently impossible, so please allow its creation and then GRUB will be installed on legacy and/or EFI system.
The ESP partition was introduced after 18.04 LTS. For now all systems have two partitions after installation - ESP and rootfs.
So please do tests correctly - as described in http:// iso.qa. ubuntu. com/qatracker/ milestones/ 413/builds/ 218647/ testcases/ 1300/results for example.