[Bug 1747376] [NEW] my ubundu installation was stopped bcz of grub failure what i want to do next

Public bug reported: my ubuntu installation was failed becase of grub installation failure my system has alreay windows is running and i partitoned for ubuntu what did i do next to use ubuntu in my pc ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubiquity 2.21.63.4 ProcVersionSignature: U

[Bug 1746982] [NEW] installer crash

Public bug reported: futher installation is not continued after the grub installation fails what i want to do next?. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubiquity 2.21.63.4 ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17 Uname: Linux 4.10.0-28-generic x86_64