The root file system is the top of the hierarchical file tree. It contains the files and directories critical for system operation, including the device directory and programs for booting the system. The root file system also contains mount points where file systems can be mounted to connect to the root file system hierarchy.
bin: directory containing the busy-box
dev: contains device nodes for special files for local devices
etc: configuration files
ffx: flash mounted directory for holding user data and optional applications and libraries
ffxusr: flash mounted directory for holding user data
lost+found: recovered files after possible crashes
root: home-directory for the root-user
usr: unix system resources
include: directory holding some FESTO SBOx-smartcamera related include-files for the development
mnt: mounting point for additional shares
sbin: important applications and scripts for camera-administration
var: variable files, such as logs, spool files
lib: contains important system-libraries
proc: important information about the kernel and hardware
target: empty directory dedicated for use with
NFS
www: contains importand data recording the web-interface
ramdisk: ramdisk for bringing up the system
tmp: Serves as a mount point for a file system that contains system-generated temporary files.