Re: some question about / adding commandline files from rootfs

[Sean McNeil]

Werner Almesberger wrote: Andy Green wrote: solution here is to continue to do that by default and abort that if AUX is seen during that time and go directly to backup kernel load. Okay, let's try this. If the fallback choice is always the same as the "magic key" choice, there's also no problem if loading the default fails very rapidly. We already have better code than this with the kernel source structs and it needs to work with that as I suggested. Sure, that was just pseudo-code. I can't convince people that these commandline addons are not necessary, putting them into the rootfs is not the worst way. Although it means one less point to kexec... Rootfs also has the advantage that they travel with their kernel. E.g., if you had an SD card with a kernel that tries something with initrd, and your normal card that doesn't, it would be very inconvenient if you had to change anything else when swapping cards. But I don't like the way it still requires management of raw partition in NAND case because we can't mount its rootfs. Kernel magic partition is bad enough. Hmm, I don't see any way how we could really avoid having at least one partition, i.e., the point we say qi is never going to grow beyond. Having access to that partition already means that we need to do the math for sizing it and we need to have some way to convey the location of the partition to our tools, be this through the mtdparts parameter or some other means. So it doesn't seem too horrible to apply this also a second time. NAND is once again the problem child needing more special pleading. Yeah, we can't escape it completely, try as we might. It's getting much better, though. We could reduce the size of GTA03 backup rootfs and go for mounting it jffs2 in Qi, then we unify the kernel location for NAND too into being inside rootfs. Heh, nice one :-) But are you sure you want to wrestle with JFFS2 ? I thought you hated it too ;-) jffs2 has a serious startup penalty. I know you are talking about a small fs, but still it would be better to use romfs don't you think? you are talking about an initrd?