virtualbox - Where can I get a Linux distro iso based on a 2.4 kernel?

I need to get my hands on an ISO file for a Linux distribution with a 2.4 kernel. I'm looking for an ISO specifically so I can use it with my Oracle VirtualBox.

Since 2.4 is so old these days, I'll explain that I'm looking for it because my company uses an ancient 2.4 uClinux distro on our ancient hardware in our devices.

I'd like to run some "desktop" tests using the same kernel version as what's in the hardware. As far as I can tell I can't run uCLinux on a desktop, so next best thing, I'd like to get anything running 2.4.