On Monday 11 May 2009 15:41:34 Roger Andersen wrote: > 5. The root filesystem is normally read/write, and I want to make it > readonly in an attempt to keep it from being corrupted every stinking time > I power cycle the board. I imagine I'd want to make it read/write again > from time to time to do maintenance on the system.
so do it ? a simple "ro" in your /etc/fstab for the root device sounds like it'd do what you want with no other change. some programs want a writable /tmp, so typically people do: /tmp /tmp tmpfs nosuid,nodev,noexec that would only leave /var for log programs (assuming you actually do that kind of thing -- most embedded systems dont). if some other app wants write access to /var (like /var/lib or /var/run), you can look into either giving /var a dedicated partition or mounting a tmpfs there too. -mike
