[uClibc] Readonly root filesystem a la Pebble

[sjhill at realitydiluted.com]

> I was wondering if anybody has done any work to create a read only root
> filesystem, such as that used in pebble, that can be tweaked occasionally.
> Basically, I would expect that it would be an ext2 filesystem with symbolic
> links to volatile information pointing to files in /var.
> 
Please, use google next time. First, filesystems are a KERNEL level
concern, not user space. Go look at ROMFS in the latest Linux kernel
trees. It has no business here. Second, do not use confidentiality
type verbage in your signature lines. They do not belong on open
lists.

-Steve