aufs2 has a compile time switch to enable initramfs/rootfs as an aufs branch the following patch adds "ramfs" IUSE to enable this feature Reproducible: Always
Created attachment 193396 [details, diff] patch to add "ramfs" IUSE
I could try to add a new version this weekend with this useflag added. Are you willing and able to test the new version and report the result back? As a side note: You added a reversed patch ;-)
Sorry for the reversed patch. I'll test the new version asap and report the result.
New version should be in the main tree. So, after your next regular sync, it should be there. Please test and report back.
The new version works fine. I also added ~x86 keyword and tested on 32 bit. It works on 32bit too.
Thanks for the report and test.