Quote Originally Posted by [email protected]
I was overly optimistic - UNIONFS let me add the hard drive, but still acted like it was out of space when the ram part filled up. I'm guessing that it needs to be added earlier in the process, or better yet, instead of the ramdisk. Sounds like major surgery to me.
It would only require a few changes in the miniroot.gz, primarily the mounting of /ramdisk. Instead of configuring a tmpfs filesystem and then mounting that on /ramdisk you could take a real disk and mount it on /ramdisk. This would then of course, as described above, give you your persistant RAM.