Ubuntu 26.04 install hangs — logo freeze, then stuck at Get:5 file:/cdrom

Framework Laptop 13 Linux
1

Which Linux distro are you using?

Ubuntu

Which release version?

26.04

Hi all,

I’m completely stuck trying to install Ubuntu 26.04 (Resolute) on my AMD RYZEN AI 9 HX 370 w/ RADEON 890M, BIOS version LFK30.03.05. Hoping someone has seen this.

Symptoms:

Booting “Try or Install Ubuntu” → the Ubuntu logo appears and freezes. Nothing happens.

If I add nomodeset to the boot parameters, I get past the logo and can see the text output — but then it hangs on this line and never moves:

Get:5 file:/cdrom resolute/main amd64 Packages

Any pointers appreciated — I’m out of ideas here. Thanks!

2

Hey, full disclosure. I’m not a Framework official support person.

The error you posted seems to me to indicate your usb key has some bad data. If it’s easy to do, try making a new fresh ubuntu installer on a different usb key. You could also try re-imaging the one you are using.

This is one set of instructions for what I mean: Create a bootable USB stick - Ubuntu Desktop documentation

If the data on the usb key is actually bad, I would expect any of a couple of things to happen: error messages like “buffer I/O error” would appear. Or, it would hang on startup, like you’re seeing, but after a long time I would expect it to show some kind of error.

If it’s a problem with the Framework hardware, I would think the behavior would vary, and not show the exact same text every time.

P.S. the “Get:5 file:/cdrom” is the part of the boot process where it reads .deb files from the usb key and unpacks them into memory for the live usb environment. Cdrom because the same image can be put on a usb or a cdrom.

3

Hey, thanks a lot for taking the time to look into this,

TL;DR: The fix was a BIOS update.

Turns out it wasn’t the key, though, and here’s what ruled it out:

  • I verified the ISO’s SHA256 against Ubuntu’s official SHA256SUMS — it matched.
  • I tried a second, freshly-imaged USB stick — same exact behavior.

The issue was the amdgpu driver failing to init the Radeon 890M (Ryzen AI 300 / Strix Point), not the media. And the fix was a BIOS update: From LFK30.03.05 to LFK30.04.02.

The LFK30.04.02 changelog explicitly lists this fix:

Fixed a bug where the iGPU Memory Size would fail to stay at 1/4 of total system memory after loading optimal defaults.

To run fwupdmgr I needed a working Linux system, but mine wouldn’t boot to the desktop. So I installed Ubuntu Server 26.04, its installer is text-based (ncurses) and never touches amdgpu, so it completes with no freeze. That gave me a console. After that:

sudo fwupdmgr refresh

sudo fwupdmgr get-updates

sudo fwupdmgr update

Hope this helps someone else!

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4

That’s a good idea to keep in mind if I run into something similar

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