Consult the documentation for your PXE card to configure the host to
boot via PXE.
When the diskless client boots, it mounts the remote
root/ directory in the diskless directory as
read-only. It also mounts its individual snapshot directory as
read/write. Then it mounts all the files and directories in the
files and files.custom files
using the mount -o bind over the read-only diskless
directory to allow applications to write to the root directory of the
diskless environment if they need to.
