package grub-efi-ia32 2.02~beta2-29ubuntu0.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Ben Thomas]

Trying to install grub-efi-ia32 on Ubuntu Wily for an Asus Transformer T100. The package failed to install when the operating system was originally installed.

Using this tutorial: http://www.jfwhome.com/2016/01/04/latest-steps-to-install-ubuntu-on-the-asus-t100ta

Accessed the old release of Ubuntu Wily using this tutorial: https://serverfault.com/questions/622735/how-do-i-upgrade-an-end-of-life-ubuntu-distribution

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: grub-efi-ia32 2.02~beta2-29ubuntu0.3
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu May 17 10:13:58 2018
DuplicateSignature: package:grub-efi-ia32:2.02~beta2-29ubuntu0.3:subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InvalidGrubScript: /etc/default/grub
ProcCmdLine: BOOT_IMAGE=(hd1,gpt2)/boot/vmlinuz-4.2.0-16-generic root=/dev/mmcblk0p2
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu3
SourcePackage: grub2
Title: package grub-efi-ia32 2.02~beta2-29ubuntu0.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: Upgraded to wily on 2018-05-17 (0 days ago)

[Phillip Susi (psusi)]

You edited your /etc/default/grub file and put an incorrect space on this line:

GRUB_CMDLINE_LINUX_DEFAULT= "quiet splash"