Cannot install Ubuntu 18.04 LTS Alongside Pre-Installed Windows 10

[Daniel LeBlanc]

Also reported for Ubuntu 16.04.4 LTS: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911578

Hello.

I am trying to install Ubuntu 18.04.5 LTS from newly written USB alongside pre-installed Windows 10 on a new Acer Aspire TC-895-EB11 desktop.

I expected that the install process would recognize the free partition created on the GPT disk, but it did not.

I had previously reviewed and followed the steps in this guide (https://askubuntu.com/questions/221835/how-do-i-install-ubuntu-alongside-a-pre-installed-windows-with-uefi).

Secure Boot was disabled in the BIOS on the first failed attempt. I tried again with Secure Boot enabled - no change. The drive & partitions do not appear to be recognized by Ubuntu.

As recommended in the guide, I am submitting this bug report. Any assistance would be much appreciated! I only purchased this desktop to run Ubuntu, but would prefer to keep the Windows 10 partition usable in case I ever want to use it.

Thanks!
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.16
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1788 F.... pulseaudio
CasperVersion: 1.394.3
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
LiveMediaBuild: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
MachineType: Acer Aspire TC-895
Package: linux (not installed)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed boot=casper only-ubiquity quiet splash ---
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-42-generic N/A
 linux-backports-modules-5.4.0-42-generic N/A
 linux-firmware 1.173.19
Tags: bionic
Uname: Linux 5.4.0-42-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/19/2020
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R01-A0
dmi.board.name: Aspire TC-895
dmi.board.vendor: Acer
dmi.board.version: V:1.0
dmi.chassis.type: 3
dmi.chassis.vendor: Acer
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR01-A0:bd05/19/2020:svnAcer:pnAspireTC-895:pvr:rvnAcer:rnAspireTC-895:rvrV1.0:cvnAcer:ct3:cvr:
dmi.product.family: Aspire T
dmi.product.name: Aspire TC-895
dmi.product.sku: 0000000000000000
dmi.sys.vendor: Acer

[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

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[Daniel LeBlanc (djleblan)]

Hello.

As requested in report 1911578, I ran the following command:

apport-collect 1911814

It appeared to complete successfully on Ubuntu 18.04.5 LTS so I am hopeful that you have some troubleshooting information to work with.

Thanks!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Terry Rudd (terrykrudd)]

Daniel,

This isn't actually a kernel bug. I will watch these for a few days but will mark them invalid if the 18.04 dual boot install worked. I just don't want to erase information for 16.04 until the installer team has some time to consider this.

[Daniel LeBlanc (djleblan)]

Hello All.

The root cause was determined to be that Ubuntu could not see the installed hard drive, which was verified using a number of commands including 'fdisk -l' from the installation environment. I had another look at the system BIOS settings and changed 'Onboard SATA Mode' from 'Intel RST Premium' to 'AHCI'. This allowed the Ubuntu 20.04 and 16.04 install to recognize the hard drive partitions during the install and still allows Windows to boot normally. I was able to complete the Ubuntu 16.04 install without difficulty after making this change. I suspect that the 18.04 would have installed correctly as well but did not validate this.

Thanks!