Reference: https://gist.github.com/extremecoders-re/3ddddce9416fc8b293198cd13891b68c

Perhaps the script needs to be modified slightly to match the latest image. I used Latest Debian 11 (bullseye) from "debian-11.3.0-mipsel-netinst.iso" as a base.

1. Run build.sh, it will download cd image from debian server, build qcow virtual hard disk image and run debian installer.

2. Ready to use. Run run.sh then raise up debian 11 mipsel on qemu!

ssh localhost -p 2222

Have fun!

It's completely off-topic, and probably a strange nerd story :)

I am developing a .NET library for video capture. I thought this library should be tested in a variety of environments in order to be truly multi-platform. So, I was looking for a somewhat minor environment in which .NET (actually mono) would work, and "Imagination Creator Ci20" was found.

The Ci20 is a MIPS 32-bit architecture that is still barely available and can operate as a USB host. It seemed feasible to perform video capture via V4L2, supporting USB Video Class. So, we quickly obtained this board and found that only supports Debian 8 (jessie) and Moreover, it seemed to have been removed from the supported list as a beta release.

After some information and trial and error, I succeeded in applying the latest binary packages for Debian 8. Apparently there is still an eMMC access bug in the kernel, which causes the system to stop with UBIFS-derived panic when I/O is under high load. Also, I need a relatively new version of Clang, but Debian 8 only has an older version, and If I try to build it on my own, I get the above panic and am out of luck.

I wish I could fix this kernel fundamentally, but unfortunately, I do not have that much knowledge. So I have decided to take other steps.

I realized that building the code on a modern Debian 11 using qemu's mipsel emulation would work fine, so I created this script by trial and error from my sources.

MIT