So on my little box here, I want to set up a bunch of things in /var to run in tmpfs. Nowadays on modern linux's like Fedora or Ubuntu, they already do, and /var/run, /var/lock both are symlinks into /run. But in Centos and RHEL this isn't done yet. So I needed a script that would populate my tmpfs folders properly and make sure they are labeled correctly for selinux.
The problem is fstab just sets up tmpfs with the default tmpfs labels, and it doesn't populate the folders for me, obviously. So I needed a way to do this early in the boot process. So what I did was make a script that I called /sbin/mount.runtmpfs and in that script I copied the right files (from a backup location that I'll periodically update), and set the selinux labels. Then to get it to run I just added an entry to /etc/fstab like so: dummy /run runtmpfs defaults 0 0 /run has to exist (and I use it as a backup for my files I wish to populate, much like how /run is used on fedora or ubuntu) Now every boot, tmpfs is mounted then my script runs and everything sets up long before any of the init scripts and daemons run, and I didn't have to modify /etc/rc.sysinit either. I am left with one problem, though. selinux is flagging my script because it doesn't have rights to relabel. Can I label a shell script to grant permissions or do I have to make a wrapper binary that does it? Any ideas from the selinux experts? /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
