GNU Grub on startup (how to remove?)

[oldfred]

Do not know AMD well, seen several posts.

I believe newer versions of Ubuntu will now see your nVidia card & install drivers as part of install, if you select that.
Before you always had to use nomodeset both for live installer & first boot or until you install nVidia driver.
AMD had its own drivers, and supposedly just works as does Intel. But AMD also has a update or pro version also.

Very new AMD Ryzen based boards had to have a UEFI/BIOS update to work with 19.10 (only).
AMD UEFI/BIOS update for Ryzen 3000 series
https://www.phoronix.com/scan.php?pa...OS-Update-Good
AMD Releases BIOS Fix To Motherboard Partners For Booting Newer Linux Distributions July 2019
https://www.phoronix.com/scan.php?pa...Linux-Zen2-Fix
https://www.phoronix.com/scan.php?pa...0x-linux&num=2
400 series cchipsets need BIOS/UEFI update for Ryzen 3000, 500 seires standard with 3000
https://ubuntuforums.org/showthread....6#post13904266

It looks like Boot-repair is reinstalling grub in BIOS boot mode. But report has not been updated to show all the details on NVMe drives, so cannot tell all info.
Probably better to be in UEFI boot mode, but then drive must be gpt and you have to have an ESP - efi system partition.

A lot of errors with report are trying to see partitions as NTFS which they are not. You can ignore those.
May need to add zfs driver & manually mount those partitions if you want to eliminate some of the extraneous error messages.

[THEKINGDOM]

Do not know AMD well, seen several posts.

I believe newer versions of Ubuntu will now see your nVidia card & install drivers as part of install, if you select that.
Before you always had to use nomodeset both for live installer & first boot or until you install nVidia driver.
AMD had its own drivers, and supposedly just works as does Intel. But AMD also has a update or pro version also.

Very new AMD Ryzen based boards had to have a UEFI/BIOS update to work with 19.10 (only).
AMD UEFI/BIOS update for Ryzen 3000 series
https://www.phoronix.com/scan.php?pa...OS-Update-Good
AMD Releases BIOS Fix To Motherboard Partners For Booting Newer Linux Distributions July 2019
https://www.phoronix.com/scan.php?pa...Linux-Zen2-Fix
https://www.phoronix.com/scan.php?pa...0x-linux&num=2
400 series cchipsets need BIOS/UEFI update for Ryzen 3000, 500 seires standard with 3000
https://ubuntuforums.org/showthread....6#post13904266

It looks like Boot-repair is reinstalling grub in BIOS boot mode. But report has not been updated to show all the details on NVMe drives, so cannot tell all info.
Probably better to be in UEFI boot mode, but then drive must be gpt and you have to have an ESP - efi system partition.

A lot of errors with report are trying to see partitions as NTFS which they are not. You can ignore those.
May need to add zfs driver & manually mount those partitions if you want to eliminate some of the extraneous error messages.

Thank you
Indeed my Nvidia drivers are fully up to date. The package posted by ASRock was to update the integrated graphics on the motherboard and they'd said via phone all also to update firmware on the motherboard

Just to clarify the ZFS drives are not actaually partitions, they are separate drives for media that I only use for media, in a RAID-1 ZFS for data integrity. No OS or boot data should reside on those drives.
On my boot drive Intel SSD NVMe - there should be no ZFS at all..?

You'd mentioned "Boot-repair is reinstalling grub in BIOS boot mode. But report has not been updated to show all the details on NVMe drives, so cannot tell all info.
Probably better to be in UEFI boot mode, but then drive must be gpt and you have to have an ESP - efi system partition."
- How can I have boot-repair reinstall grub in UEFI boot mode vs BIOS boot mode?

I'm also coincidentally planning to install Win10 to a separate drive for dual boot this evening if I can get to it. I'm not sure how that may impact any steps I take to fix this issue now.

[THEKINGDOM]

Do not know AMD well, seen several posts.
A lot of errors with report are trying to see partitions as NTFS which they are not. You can ignore those.
.

Damn! after all this time it's FIXED! - Issue returned once I switched motherboard during a migration from AMD hardware back to Intel.

I went into the UEFI and remove the fall back boot drive options and disabled the ZFS drives (as options for boot), I have no idea why they were selected as potential boot drive fall backs.....
Now it boots straight to my default SSD/Ubuntu-OS right away.
I'm not sure why it was showing a GRUB screen every time on startup but it seems as if it wasn't defaulting to any one particular boot drive..?

Thank you for the help here!

[oldfred]

If drive is MBR, not easy to convert to UEFI boot. UEFI normally uses gpt partitioning and Windows requires gpt for UEFI boot or MBR for BIOS boot.
With Ubuntu you can boot in UEFI mode from MBR, but that is not the UEFI standard.

Probably easier just to backup your data and do a new clean install in UEFI boot mode.
Converting from MBR to gpt:
http://ubuntuforums.org/showthread.php?t=1454252

Both Windows & Ubuntu install in the mode that you use to boot install media.
More details on UEFI in link in my signature.

[THEKINGDOM]

If drive is MBR, not easy to convert to UEFI boot. UEFI normally uses gpt partitioning and Windows requires gpt for UEFI boot or MBR for BIOS boot.
With Ubuntu you can boot in UEFI mode from MBR, but that is not the UEFI standard.

Probably easier just to backup your data and do a new clean install in UEFI boot mode.
Converting from MBR to gpt:
http://ubuntuforums.org/showthread.php?t=1454252

Both Windows & Ubuntu install in the mode that you use to boot install media.
More details on UEFI in link in my signature.

Thanks for the info oldfred.
Based on PasteBin Boot Repair Summary - It appears I'm already GPT, not MBR.
PasteBin Boot Summary - "nvme0n1 : GPT, BIOS_boot, has-correctEFI, not-usb, not-mmc, has-os"
Image below from Gparted:

Screenshot from 2019-11-09 09-30-07.jpg

I've just changed my motherboard/CPU from AMD to Intel, thought I'd elimited the GRUB screen showing on start-up (back on AMD the day prior) but now it's back again with the new MSI motherboard. Even with the latest bios firmware updates and disabling boot drive alternatives/priorities, still won't seem to prevent it from showing on boot.
I'm booting in either UEFI or UEFI/Legacy to show drives.

Probably easier just to backup your data and do a new clean install in UEFI boot mode.

Did you mean to do a clean install of Ubuntu all together and enable UEFI?

At this point with the consistent issues fo GRUB screen appearing on startup I'm quite happy to do a complete re-install, this has been going on for a year and can't find a reliable fix to prevent the GRUB screen from showing on startup, not understanding why it's occuring the first place.
My quick method to "bypass the GRUB Screen " has been to type "exit" each time but it's very annoying to have to do this every time on startup.
You may also notice that GParted shows a partition "grub2 core.img" 1MiB filesize - not sure what this signifies..?

PasteBin log (for reference):
http://paste.ubuntu.com/p/9WjWk2smF5/


Again any help anybody can provide is greatly appreciated