Binary package “libc6-udeb” in ubuntu-rtm 14.09-factory

GNU C Library: Shared libraries - udeb

 Contains the standard libraries that are used by nearly all programs on
 the system. This package includes shared versions of the standard C library
 and the standard math library, as well as many others.
 .
 This package contains a minimal set of libraries needed for the Debian
 installer. Do not install it on a normal system.