TLDR: the Xubuntu 18.04.1 installer does not recognize an NTFS EFI partition. Then the process takes it course and fails.
Longer story. I recently staged two dual boot machines from scratch. The only difference between them was the EFI partition. Case 1: * Laptop came with Windows 10 pre-installed * Resized Windows partition * Booted with USB. Xubuntu installer offered choice of installing along existing Windows system and everything worked like a charm. KUDOS TO THE DEVELOPERS OF THE XUBUNTU INSTALLER. Case 2: * Restaged desktop that had a Windows 10 digital license on blank SSD * Resized Windows partition * Booted with USB. Xubuntu installer did not offer choice of installing along existing Windows system * STOPPED. Compared the two cases and found the difference: the fresh Windows 10 install (using 1809 media) set the desktop up with an NTFS EFI partition (at least so says gparted). * Rebooted with USB. In Xubuntu installer chose "Something else", selected the free space on the disk to create a new partition and let the installer go * The installer failed when trying to install grub-efi I will still make some attempts at fixing this, and will post here if I find something new. -- 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-auto/+bug/1766945/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
