Affected by the same bug, I solved the point adding a small EFI (200M) partition before the OS / as
Dr_SE (test911turbo) wrote on 2017-03-06: (comment #14) here: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1252255 In my case problem now solved: On installation, do not forget to create a EFI System Partition (ESP), if it doesn't already exist. 1.- Live USB Stick, install Ubuntu 2.- on partitioning, select "something else" 3.- create EFI System Partition (ESP): - on the 1st 100 G of the disk - size > 100 M (recommended 200 M) - "primary partition" - type: "EFI" 4.- everything else as usual. Now it works fine with my old /home partition. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766945 Title: (EFI on top of legacy install) choosing "replace" or "resize" options in partitioning may lead to an install failure To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-efi/+bug/1766945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs