Compressed ROM file system support (cramfs)

modulename: cramfs.ko

configname: CONFIG_CRAMFS

Linux Kernel Configuration
└─>File systems
└─>Miscellaneous filesystems
└─>Compressed ROM file system support (cramfs)
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Saying Y here includes support for CramFs (Compressed ROM File
System). CramFs is designed to be a simple, small, and compressed
file system for ROM based embedded systems. CramFs is read-only,
limited to 256MB file systems (with 16MB files), and doesn't support
16/32 bits uid/gid, hard links and timestamps.

See Documentation/filesystems/cramfs.txt and
<file:fs/cramfs/README> for further information.

To compile this as a module, choose M here: the module will be called
cramfs. Note that the root file system (the one containing the
directory /) cannot be compiled as a module.

If unsure, say N.

source code: