3.3. Special File Locations

Red Hat Linux extends the FHS structure slightly to accommodate special files.

Most files pertaining to the Red Hat Package Manager (RPM) are kept in the /var/lib/rpm/ directory. For more information on RPM see the chapter titled Package Management with RPM in the Red Hat Linux Customization Guide.

The /var/spool/up2date/ directory contains files used by Red Hat Update Agent the Red Hat Network website at https://rhn.redhat.com/.

Another location specific to Red Hat Linux is the /etc/sysconfig/Chapter 4 The sysconfig Directory for more information about what is within this directory and the role these files play in the boot process.

Finally, one more directory worth noting is the /initrd/ directory. It is empty, but is used as a critical mount point during the boot process.

	Warning
	Do not remove the /initrd/ directory for any reason. Removing this directory will cause the system to fail to boot with a kernel panic error message.