So this ideapad Z510 came with FreeDOS, ran nicely since and under Ubuntu 12.04 (up to .5) LTS and never had Windows 7-10 on it.
Rebooting to USB and mounting the root partition: mount /dev/sda6 /media/ubuntu/GUID mount /dev/sda5 /media/ubuntu/GUID/boot mount /dev/sda7 /media/ubuntu/GUID/usr mount --bind /dev dev mount --bind /dev/pts dev/pts mount --bind /proc proc mount --bind /sys sys chroot /media/ubuntu/GUID grub-install /dev/sda Installing for x86_64-efi platform. grub-install: error: cannot find EFI directory. At least /boot/grub at this point got populated with the modules that were missing before. No partition has the ESP flag and/or file system type EF. The 18.04.1 installer seems to neither expect this (which it should check upfront rather than near the end of a lengthy install) nor try and create one, or a way for non-EFI (legacy) boot. Anything into grub-install /dev/sda --efi-directory=/boot/efi(/EFI(/ubuntu)) yields grub-install: error: /boot/efi(/EFI(/ubuntu)) doesn't look like an EFI partition. ...but these directories wouldn't meet the specifications https://wiki.archlinux.org/index.php/EFI_system_partition#MBR_partitioned_disks of a dedicated(?) primary(?) 100-256MB FAT32 anyway. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1800558 Title: Ubuntu 18.04.1 installer crashes after "Could not install grub-efi- amd64-signed to /target/" (sic) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1800558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
