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Nyxynyx
Asked: 2020-03-22 15:38:39 +0800 CST

Ubuntu 19.10 stuck at purple screen during boot using KVM

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I am trying to boot into a Ubuntu 19.10 machine through the motherboard's IPMI's KVM feature. However, it gets stuck on a blank purple screen sometime during the boot process.

I am able to SSH into the machine when it is stuck on a purple screen in the KVM app. The machine does not contain any dedicated graphics card, and uses an AsRock Rack X470D4U motherboard with an ASPEED AST2500 graphics controller built into the motherboard.

On a fresh Ubuntu 19.10 install, the machine has never encountered the purple screen until now. Before this problem occurred, I have installed xrdp, vnc4server, ubuntu-mate-core, ubuntu-mate-desktop. gnome-desktop was also installed, but has been uninstalled (unsure if it was a partial or complete uninstall).

Any ideas how to fix it? Thank you.

Purple Screen as viewed using KVM app

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Seconds before purple screen appears

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boot kvm ipmi 19.10

1 Answers

  1. I had a similar experience on a physical machine. In my case, it was the video drivers that were causing this. So I edited the grub file while it was booting (hold the right Shift key if BIOS, Esc if UEFI) and replaced quite splash with nomodeset.

    However, to make this permanent, you will have to edit the grub file. Since you can ssh into it, then edit the grub file by logging in:

    sudo vi /etc/default/grub

    After you make the change above, save the file and update the grub:

    sudo update-grub2
sudo shutdown -r now

    Ref: https://www.dell.com/support/article/en-us/sln306327/manual-nomodeset-kernel-boot-line-option-for-linux-booting?lang=en

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