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I'm trying to install Ubuntu 18.04 desktop with Rufus on a computer with the following specs:

  • CPU: AMD Ryzen 5 2600
  • MOBO: ASUS Prime B450M-A/CSM
  • RAM: G-Skill Ripjaws DDR4 F4-2400C15D-16GVB
  • GPU: Nvidia GeForce GTX750
  • PSU: Apexgaming AG-650M
  • SSHD: Seagate Firecuda Compute
  • mATX: Rosewill SCM-01

Basically it boots from the USB (FAT32) and brings up a black error screen with words and numbers. Then it transitions to the purple splash screen with "ubuntu" and 5 dots, however the screen shows various visual glitches depending on which USB port I plug into.

When trying to boot the computer, it boots to a black screen with the following error message:

ACPI Error: Needed [Integer/String/Buffer], found [Region]

Here's a YouTube video that shows what I mean.

karel
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Efefay
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2 Answers2

9

Try selecting the nomodeset boot option to tell the kernel to not start video drivers until the system is up and running.

From the purple ubuntu screen press the F6 key. If you don't see this screen, shutdown, boot from the Ubuntu live USB again, and immediately after the motherboard / computer manufacturer logo splash screen appears when the computer is booting, with BIOS, quickly press and hold the Shift key, which will bring up a GNU GRUB menu screen. With UEFI press (perhaps several times) the Esc key to get to the GNU GRUB menu screen. Sometimes the manufacturer's splash screen is a part of the Windows bootloader, so when you power up the machine it goes straight to the GNU GRUB menu screen, and then pressing Shift is unnecessary.

If you see a screen that looks like the menu in the third screenshot, then scroll down to the next section (Enable nomodeset from GRUB boot menu) and follow the instructions in that section instead.

enter image description here

After pressing F6, press Enter on nomodeset and an "x" will appear to the left of the option. Press Esc to leave the popup menu. The selections are retained at the time the user presses the Esc key. Then use the down arrow key to highlight the Install Ubuntu option and press the Enter key to select it.

enter image description here

The below section is intended to be used when the menu in the first screenshot does not show when booting from the Ubuntu live USB. Otherwise follow the instructions in the first section.

Enable nomodeset from GRUB boot menu

Safe Graphics Mode. A new option is added to the GRUB menu in 19.04 and later which will boot with nomodeset on. This may help you resolve issues on certain graphics cards and allow you to boot and install any proprietary drivers needed by your system.

Immediately after the motherboard / computer manufacturer logo splash screen appears when the computer is booting, with BIOS, quickly press and hold the Shift key, which will bring up a GNU GRUB menu screen. With UEFI press (perhaps several times) the Esc key to get to the GNU GRUB menu screen. Sometimes the manufacturer's splash screen is a part of the Windows bootloader, so when you power up the machine it goes straight to the GNU GRUB menu screen, and then pressing Shift is unnecessary.

You will see a GNU GRUB menu screen that looks like this:

enter image description here

Press e to enter editing mode. This will bring up a GNU GRUB screen that looks like this:

enter image description here

Use the arrow keys to navigate when screen editing the above screen. Navigate to after the string on this screen that starts with root=. In this example screen the full string is root= followed by UUID= and a hexadecimal string as shown below:

root=UUID=bcf15ef2-a0b2-4753-9558-8399dd12a729

Immediately after this string replace ro quiet splash by nomodeset quiet splash. This change is only temporary — it will just be used once and GRUB won’t remember it in the future. Press Ctrl+X or F10 to boot with the nomodeset option that was added. If you make a mistake, press Esc to go back to the previous screen.

To make the change permanent you need to add it to the /etc/default/grub file. Append nmodeset inside the quotes of the line GRUB_CMDLINE_LINUX_DEFAULT="...". Then update your grub settings with sudo update-grub.

karel
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  • Is this purple screen what you are talking about? trying to attach photo link – Efefay Sep 22 '18 at 13:55
  • After pressing F6, I pressed enter on nomodeset and an "x" appeared to the left of the option. I pressed escape and then I am brought back to the first image. – Efefay Sep 22 '18 at 14:07
  • I pressed enter on "Install Ubuntu" and it brought me to the install page where I have seen on the video. It asks for language, keyboard settings, time zone and credentials. Solved! Thank you Karel – Efefay Sep 22 '18 at 14:14
  • My GNU Grub screen looks like the third example. But when I hit 'e', I get completely different strings, there was a "casper quiet splash" that I changed to "nomodeset quiet splash", then rebooted, but then no GRUB screen, just throws errors. – gracious1 Nov 17 '18 at 03:54
  • @gracious1 That's all the nomodeset options that I've got, so it's safe to say that the nomodeset kernel boot option doesn't help you to boot to the Ubuntu installer USB in your situation. 1 – karel Nov 17 '18 at 04:00
  • Instead of just giving me a link you could tell me how you think it is relevant to my situation. I have read the answer, don't really understand it, and I'm not sure it will work since I do not have "old ,slow" USB on a brand new laptop. – gracious1 Nov 17 '18 at 04:18
0

I just ran into this same issue upgrading my pc with new CPU, Motherboard, GPU and Ram.

Ryzen 7 7200X CPU Tuf B450 Motherboard EVGA 1660 Super

I ended up having to take out the 1660 and put my old GPU EVGA 970 in to get a display, and then downloaded the 1660 drivers from EVGA. After I did that I was able to reinstall the 1660 and reboot with success. Everything seems to be running smoothly now.

Shane
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