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Installed 20.04 but boot fails, stalling at the spinning wheel icon.

I must restart 2-3 times to boot into my system.

What could be the problem?

Zanna
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oleh.bdn
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  • If the MV was not just freshely installed, maybe it's not just "spinning". Press the "esc" button, you should see the logs: it is doing things. Don't panic and wait until the boot is done :) – Tms91 Jan 16 '24 at 22:39

3 Answers3

1

I suspect the LiveUSB used to install Ubuntu 20.04 may have been installed with a corrupted download.

Please redownload Ubuntu's ISO file at https://ubuntu.com/download

or for a supported 'flavour' with a different Desktop Environment, download from https://ubuntu.com/download/flavours .

Next, check for download errors by https://tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu .

Make a new LiveUSB following these instructions on another Linux PC or on a Windows PC .

Once you make a LiveUSB, install it following these steps https://tutorials.ubuntu.com/tutorial/tutorial-install-ubuntu-desktop

K7AAY
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  • all instructions were done, still not working, installed 18.04 again.... tried to install on 2 different ssd's – oleh.bdn Apr 28 '20 at 15:04
0

I had the same problem. A possible cause could be that the .iso file didn't download properly. I downloaded the .iso file again and it worked out this time.

Aayush Mathur
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0

I run a dualboot system Ubuntu 20.04/ Windows 10.

I encountered the same conditions here. Having verified the hash of the .iso before using Rufus to create a LiveUSB, I think I can rule out a corrupted download.

This fix worked like a charm: https://www.stephenwagner.com/2019/05/05/ubuntu-linux-black-screen-frozen-system-after-upgrade-install/

Temporary Fix

To get the system to boot:

  1. After turning on your PC, hold the right SHIFT key to get to the GRUB bootloader if your computer uses a BIOS. If your computer uses EFI or UEFI, continuously tap the ESC (escape) key after turning on your PC.
  2. Once GRUB is open, press the e key to edit the first highlighted entry “Ubuntu”.
  3. Move your cursor down to the line that starts with linux, and use the right arrow key to find the section with the words ro quiet splash.
  4. Add nomodeset after these words.
  5. Feel free to remove quiet and splash for more verbosity to troubleshoot the boot process.
  6. Press CTRL + X or F10 to boot.
  7. The system should now boot.

Permanent Fix

To permanently resolve the issue:

  1. Once the system has booted using the temporary fix, log in.

  2. Open a terminal window (Applications -> Terminal, or press the “Start” button and type terminal).

  3. [...] Use sudo to open your favorite text editor and edit the file /etc/default/grub

    sudo nano /etc/default/grub

  4. Locate the line with the variable GRUB_CMDLINE_LINUX_DEFAULT, and add nomodeset to the variables. Feel free to remove splash and quiet if you’d like text boot. Here’s an example of my line after editing (yours may look different):

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"

  5. Save the file and exit the text editor (CTRL+X to quit, the press y and enter to save).

  6. At the bash prompt, execute the following command to regenerate the grub.conf file in /boot from your new default file:

    sudo update-grub

  7. Restart your system, it should now boot!

Please Note: Always make sure you have a full system backup before modifying any system files!

J. Doe
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