GRUB installation failed UbuntuStudio19.10 Lenova M81

[Yves]

On a Lenova ThinkCentre M81 i3 processor, 8G-Ram & 'fresh' install of UbubtuStudio ~ was successful but at the end (restart) a new black page appears with this; E53: No boot filename received MOF: Exiting Intel Boot Agent. Error 1965: No operating system found. Press any key to repeat boot sequence. Being new to LINUX .:. Ubuntu 19.10 was just installed a week ago and was working great(including installing Ardour, LMMS, Blender etc.) but upon trying to do a 'fresh' install of UbuntuStudio 19.10 something is not working ? Is there anyone who cold help with this please ~ maybe who has successfully dealt with this issue already ? After two unsuccessful tries at opening Ubuntustudio from the harddrive~then tried to run the program directly from the usb stick and that works well. It shows; 24 folders in "File System". 5 of those folders have 'arrows' (bin, lib, lib32, lib64, fibx32 & sbin). The 24 folders in "500GB Volume"(harddrive) are the same except for a greyed-out folder named 'swapfile' & 'root' both of which have an X on them. The 'ubuntu-studio' (home folder) has 8 folders which are all empty except 'desktop' which has the folder ; "Install Ubuntu Studio 19.10" On the main page (blue w/logo) in the "500 GB Volume" folder is the applications ~ which work well(tried a few). So UbuntuStudio seems to work great off of the usb stick/drive but will not open without the usb drive . We gotta get this sorted out, so if any knowlegable volunteers have experience with these sorts of issues please feel free to help out! Thanks in advance It may be bothersome for folks like you but please remember that you are communicating with a 'beginner' so any quick & not precisely explained suggestions are potentially not going to be correctly interpreted, comprehended or executed .
The harddrive is selected as the 1st boot device.
This is not a manual install.
Ubuntu installer may have selected another drive automatically by error. Which may be something developers address?
CMOS battery is new.
Thank-you for trying to help start with troubleshooting ,even-though troubleshooting their OS is something many beginners are not looking forwards to do(hi-hi). Perhaps a BIG warning in RED could be on Ubuntu's download page addressing this reality-for anyone considering to download this OS ? That may spare Ubuntu from plenty of complications ?
 Either way, the process is already underway and presently the Lenovo M81 has no OS now, so what to do other than persist/keep searching for a solution? Could you indicate concise steps to repairing the GRUB on the only harddrive on the Lenovo M81 via the usb stick ? This PC has only one Harddrive. No usb drive plugged in and one empty CD/DVD drive.
On this Lenovo M81 Bios Setup Utility ->Startup there is ;

>Primary Boot Sequence
1: HDD1: PO; WDC WD5000_______(Western Digital 500GB Harddrive)
2: FDD:
3: USB FDD:
4: USB KEY:
5: CD/DVD1: P1: Optiarc DVD RW AD-7250H
6: Network1: IBA GE Slot 00CB v1365

Excluded from boot order:
USB HDD:
USB CD/DVD:

Automatic Boot Sequence->
1: HDD1: PO; WDC WD5000_______(Western Digital 500GB Harddrive)
2: Network1: IBA GE Slot 00CB v1365

Excluded from boot order:
FDD:
CD/DVD1: P1: Optiarc DVD RW AD-7250H
USB FDD:
USB HDD:
USB CD/DVD:
USB KEY:

Error Boot Sequence->
1: HDD1: PO; WDC WD5000_______(Western Digital 500GB Harddrive)
2: Network1: IBA GE Slot 00CB v1365

Excluded from boot order:
FDD:
CD/DVD1: P1: Optiarc DVD RW AD-7250H
USB FDD:
USB HDD:
USB CD/DVD:
USB KEY:

Boot Mode ; (has 3 choices ;
1) AUTO (priority UEFI then Legacy) 2) Legacy 3) EUFI
-presently the 'Boot Order ' is set to LEGACY

Quick Boot is now been DISABLED
DEVICES->
Configure SATA as ;
1 AHCI or 2) IDE
   ....it was AHCI so changed it to IDE*

Native Mode Operation is ENABLED
Hard Disk Pre-Delay DISABLED
External SATA Port ENABLED
SATA Controller ENABLED

Guess What (hi-hi) again ,it' error 1962: No operating system found 😢
So will return all settings to default and try your 2nd suggestion. p.s. . . .unfortunately we live in an isolated small village & know no one around here who is experienced with this *
So ran Ubuntu from the usb stick & typed lsblk into the terminal and got;

  sda
     ----sda1 512M
    l____sda2 465.3G

  sbd 7.5G
   l__sbd1 7.5G part/cdrom

So ran in the terminal sudo grub-install /dev/sda2
but the terminal said it could not be found?So shut it down & unplugged the dvd drive so only the one harddrive is working.....(you can hear it working slightly while loading the programs)
Then made a new bootable usb of UbuntuStudio19.10 with Etcher this time (instead of Rufus last time)and before installing highlighted "check disk for errors" &pressed enter-which took a while but eventually it said everything is okay. So installed UbuntuStudio (erase disk completely & install UbuntuStudio option)but for the first time (after 3or 4 previous attempts over the past few days)got this pop up while the GRUB was installing ; GRUB installation failed....The 'grub-efi-amd64-signed' package failed to install into / target /. . ..Installer crashed ...we're sorry ...........file report
Mind you something must be working because this message is being written to you on the same PC ?

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: ubiquity 19.10.21
ProcVersionSignature: Ubuntu 5.3.0-18.19-lowlatency 5.3.1
Uname: Linux 5.3.0-18-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CasperVersion: 1.427
Date: Sun Jan 19 20:38:32 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntustudio.seed only-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu-Studio 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcEnviron:
 LANGUAGE=en_CA.UTF-8
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_CA.UTF-8
 LC_NUMERIC=C.UTF-8
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Yves (yves537)]

Additionally Karel (ASK UBUNTU) has just blocked us from asking any more questions even-though we were polite & courteous ,plus the one solution Karel refereed us to did not solve the problem.. That is truly discouraging~wrong, to try and block someone who is trying to find answers so far the Ubuntu developers have not even been able to solve n'est pas ?

[Yves (yves537)]

sorry ,its not refereed but rather referred*

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

There are many support options and not just Ask Ubuntu, eg. https://answers.launchpad.net/ubuntu, the support forum of your local Ubuntu community http://loco.ubuntu.com/ or asking at https://askubuntu.com or https://ubuntuforums.org, or for more support options please look at https://discourse.ubuntu.com/t/community-support/709

FYI: It is my understanding that Karel did not block you from asking more questions on Ask Ubuntu; one or more of your questions were just 'close' voted.

[Chris Guiver (guiverc)]

Thank you for reporting this bug to Ubuntu.

Ubuntu 19.10 (eoan) reached end-of-life on July 17, 2020.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.

[Launchpad Janitor (janitor)]

[Expired for grub-installer (Ubuntu) because there has been no activity for 60 days.]