Hi Eduardo ! > Yes that's possible just bind mount a tmpfs dir. So create a tmpfs > somewhere eg. /tmpfs then mount -o bind /tmpfs /etc.
This is incorrect. If you mount a file system this way you replace the original contents of the directory with contents of the new file system. The question was to merge the contents of the two file systems. You either need to fiddle with symlinks, or need to copy original content to a tmpfs and mount that on /etc, or you need to use a union file system (which is not part of the standard kernel). Consider using aufs. I had really success with using this one, without any problems in practical use. Problems only arrive when you bypass the aufs layer and try to fiddle with the contents of he underlying file systems. It is a really nasty thing to have default contents on a read only file system (or image) and have a copy on write file system on top of the read only system. This allows you to change the contents of any file on the fly even if the rest is still on read only file system. With some thought you may even backup your modified files and restore after boot. The Live CD of SystemRescueCd system (and other Linux live CD systems) use this type of mounting. -- Harald _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
