core: Print error message if we don't load ldlinux.c32

If the user forgot to install ldlinux.c32 they're greeted with the
following unhelpful message,

	  Boot failed: press a key to retry, or wait for reset...

We should explicitly tell the user that the reason for the boot
failing is that ldlinux.c32 could not be loaded.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>

diff --git a/core/elflink/load_env32.c b/core/elflink/load_env32.c
index 8e124a0..49c5989 100644 (file)
--- a/core/elflink/load_env32.c
+++ b/core/elflink/load_env32.c
@@ -141,6 +141,8 @@ void load_env32(com32sys_t * regs __unused)
 
        if (!search_dirs(&fp->i.fd, search_directories, filenames, realname))
                start_ldlinux(argv);
+
+       writestr("\nFailed to load ldlinux.c32");
 }
 
 int create_args_and_load(char *cmdline)