Cannot install grub on any partition
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| grub-installer (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Installing alongside existing 14.04 and 15.10 - encountered grub install error on every partition.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.18.7
ProcVersionSign
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.340
Date: Thu Mar 10 10:38:37 2016
InstallCmdLine: file=/cdrom/
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

You attempted to install grub to /dev/mapper/ ubuntu- -vg-root. It must be installed to a disk drive, like /dev/sda, not a logical volume. Also once the first attempt fails, all subsequent ones will as well.