Your installation medium had a mixup of different files from different versions of Ubuntu on it. You need to blank the usb stick before making it bootable.
** Changed in: grub-installer (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1455899 Title: install crashed on an acer aspire v nitro, UEFI problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1455899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs