Finally i installed Ubuntu 17.10 and upgraded it to 18.04, it works. Install 17.10 open terminal and enter following commands..
$ sudo apt update $ sudo apt upgrade $ sudo apt dist-upgrade $ sudo apt install update-manager-core $ sudo do-release-upgrade -d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767602 Title: Grub installation failed 18.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1767602/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
