I ran ldd on a fully installed system to get this output,
the reference to libX11 causes vim to fail when run from the
text console during the install.

 ldd RedHat/instimage/usr/bin/vim
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6
(0x40007000)
        libncurses.so.4 => /usr/lib/libncurses.so.4
(0x400aa000)
        libdb.so.3 => not found
        libgdbm.so.2 => /usr/lib/libgdbm.so.2 (0x400e9000)
        libdl.so.2 => /lib/libdl.so.2 (0x400ef000)
        libm.so.6 => /lib/libm.so.6 (0x400f2000)
        libc.so.6 => /lib/libc.so.6 (0x4010b000)
        libcrypt.so.1 => /lib/libcrypt.so.1 (0x401b0000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2
(0x2aaaa000)