grub install failed fatal error

[Humplebert]

tried to install to a dual-boot system, windows 7 on sda and ubuntu 11.10 on sdb

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
CasperVersion: 1.287
Date: Mon Oct 31 23:46:17 2011
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 LANGUAGE=
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Exception during installation:
Oct 31 23:46:13 ubuntu plugininstall.py: Traceback (most recent call last):
Oct 31 23:46:13 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1641, in <module>
Oct 31 23:46:13 ubuntu plugininstall.py: install.run()
Oct 31 23:46:13 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 55, in wrapper
Oct 31 23:46:13 ubuntu plugininstall.py: func(self)
Oct 31 23:46:13 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 199, in run
Oct 31 23:46:13 ubuntu plugininstall.py: self.configure_bootloader()
Oct 31 23:46:13 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 955, in configure_bootloader
Oct 31 23:46:13 ubuntu plugininstall.py: "GrubInstaller failed with code %d" % ret)
Oct 31 23:46:13 ubuntu plugininstall.py: InstallStepError: GrubInstaller failed with code 1
Oct 31 23:46:13 ubuntu plugininstall.py:

[Brian Murray (brian-murray)]

Oct 31 23:42:29 ubuntu grub-installer: info: Installing grub on '/dev/sdb5'
Oct 31 23:42:29 ubuntu grub-installer: info: grub-install supports --no-floppy
Oct 31 23:42:29 ubuntu grub-installer: info: Running chroot /target grub-install --no-floppy --force "/dev/sdb5"
Oct 31 23:42:29 ubuntu grub-installer: /usr/sbin/grub-setup: warn: Attempting to install GRUB to a partitionless disk or to a partition. This is a BAD idea..
Oct 31 23:42:29 ubuntu grub-installer: /usr/sbin/grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
Oct 31 23:42:34 ubuntu grub-installer: /usr/sbin/grub-setup: error: cannot read `/grub/core.img' correctly.
Oct 31 23:42:34 ubuntu grub-installer: error: Running 'grub-install --no-floppy --force "/dev/sdb5"' failed.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Rüdiger Kupper (ruediger.kupper)]

Same problem here on precise, when trying to install into a partition.

[Shrenik Shah (shrenik.shah)]

I was trying to install Ubuntu 18.04 in dual-boot with Windows 10, where Windows is installed by default on the laptop in sda. Not sure, how to proceed.

[Durga Prasad (durgaprasad.myway)]

Same problem. Trying to install Ubuntu 19.10 along side Windows and Ubuntu 18.04. Device to install boot loader:
1. Failed. Separate 500MB drive "/dev/sda2" for "/boot" while root on "/dev/sda7" and Device to install boot loader "/dev/sda2"
2. Failed. Default "/boot". Roor on "/dev/sda7" and Device to install boot loader "/dev/sda"