executing 'grub-install/dev/sda'failed
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| grub-installer (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Unable to install GRUB in /dev/sda
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63
ProcVersionSign
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CasperVersion: 1.376
Date: Wed Sep 7 19:46:19 2016
InstallCmdLine: BOOT_IMAGE=
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
ProcEnviron:
LANGUAGE=en_IN
PATH=(custom, no user)
XDG_RUNTIME_
LANG=en_IN
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)
| information type: | Private Security → Public |
| Changed in grub-installer (Ubuntu): | |
| assignee: | nobody → mohit barupal (mohitbarupal) |
| assignee: | mohit barupal (mohitbarupal) → nobody |

Your EFI system partition is corrupt; you will need to repair it with either dosfsck, or Windows' chkdsk.