On Fri, 05 Aug 2011 13:55:39 -0500 Bruce Dubbs <bruce.du...@gmail.com> wrote: > I've thought for a while that there should be a location that is > accessible across boots that is always available (not a mountpoint). > It's a catch-22 though. How do you mount / read only (for security) and > still be able to write this persistent data? The clock/ntp data is only > one area. Alsa and pci.ids/usb.ids are other areas of concern, although > they can certainly come after mountfs. This data probably should be in > an optionally mountable /var partition. > > For transient data, we now have /run. That helps, but is not a complete > solution. > > The first script to run is mountvirtfs. Perhaps we could have that > create a /dev device like /dev/sda? and mount that as /var before udev > ever starts.
If you configure your kernel with CONFIG_DEVTMPFS_MOUNT=y the kernel will mount a tmpfs on /dev itself and populate it with all the devices it knows about. Xorg isn't happy to run without udev there to tell it about input devices but I can boot to init 3 no problem _without_ udev running; all the devices mentioned in /etc/fstab are there for mountfs to work _before_ udev is run. Andy -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
