On 2008-04-27, jim burns <[EMAIL PROTECTED]> wrote: > Well, that lets me out on fedora 8, which is still on 2.6.24, or > SuSE 10.3, which is on 2.6.22. I could test it on my Fedora Rawhide > (currently 9.01) xen domu tho'.
Yes, I realize that keeping up with HEAD of Linux development will leave out people that stick to distro-kernels. If I track which versions of nullfs worked with which kernel versions, users (in the future) could use older nullfs versions with their distro-kernels. But right now nullfs if for people that are willing to compile to latest stable kernel from kernel.org. > I haven't downloaded the code yet - waiting for it to be integrated > into a new 3.x release. Now that I have experienced the stability of nullfs, I am quite excited about posting a new Dazuko 3.x pre-release based on it. > Looking at your fstab, the question comes up does nullfs have the > same problem 3.0/Fist had that you can't overlay '/' because of > 'init'? It is not possible to overlay '/' the way that sub-directories are overlayed. In order to support overlaying '/', nullfs will need to support sub-mounts. For example, in /etc/fstab it would look something like this: /dev/hda1 / nullfs submount='type=ext3,defaults' 0 1 When mounting '/', the type would be "nullfs" but nullfs would first mount '/' as ext3 directly underneath it. This not only allows '/' to be overlayed, but also makes it possible to use nullfs with auto-mounters. It also eliminates the "risk" of processes being able to access the mount underneath nullfs. However, this is simply an idea, which is not planned for the initial release. Supporting sub-mounts is significantly more difficult. For example, nullfs would have to support things like: # mount -o remount,ro / I first would like to to get nullfs accepted as a sub-directory-overlay. Then I can start looking into supporting sub-mounts. John Ogness -- Dazuko Maintainer _______________________________________________ Dazuko-devel mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/dazuko-devel
