New config file option: "also_scan_dirs".

[refind] / refind.conf-sample

#
# refind.conf
# Configuration file for the rEFInd boot menu
#

# Timeout in seconds for the main menu screen. Setting the timeout to 0
# disables automatic booting (i.e., no timeout).
#
timeout 20

# Hide user interface elements for personal preference or to increase
# security:
#  banner      - the rEFInd title banner
#  label       - text label in the menu
#  singleuser  - remove the submenu options to boot Mac OS X in single-user
#                or verbose modes; affects ONLY MacOS X
#  hwtest      - the submenu option to run Apple's hardware test
#  arrows      - scroll arrows on the OS selection tag line
#  all         - all of the above
#
#hideui singleuser
#hideui all

# Use a custom title banner instead of the rEFInd icon and name. The file
# path is relative to the directory where refind.efi is located. The color
# in the top left corner of the image is used as the background color
# for the menu screens. Currently uncompressed BMP images with color
# depths of 24, 8, 4 or 1 bits are supported.
#
#banner hostname.bmp

# Custom images for the selection background. There is a big one (144 x 144)
# for the OS icons, and a small one (64 x 64) for the function icons in the
# second row. If only a small image is given, that one is also used for
# the big icons by stretching it in the middle. If only a big one is given,
# the built-in default will be used for the small icons.
#
# Like the banner option above, these options take a filename of
# an uncompressed BMP image file.
#
#selection_big   selection-big.bmp
#selection_small selection-small.bmp

# Use text mode only. When enabled, this option forces rEFInd into text mode.
#
#textonly

# Which non-bootloader tools to show on the tools line, and in what
# order to display them:
#  shell     - the EFI shell
#  gptsync   - the (dangerous) gptsync.efi utility
#  about     - an "about this program" option
#  exit      - a tag to exit from rEFInd
#  shutdown  - shuts down the computer (a bug causes this to reboot EFI
#              systems)
#  reboot    - a tag to reboot the computer
# Default is shell,about,shutdown,reboot
#
#showtools shell, about, reboot

# Which types of boot loaders to search, and in what order to display them:
#  internal      - internal EFI disk-based boot loaders
#  external      - external EFI disk-based boot loaders
#  optical       - EFI optical discs (CD, DVD, etc.)
#  hdbios        - BIOS disk-based boot loaders
#  biosexternal  - BIOS external boot loaders (USB, eSATA, etc.)
#  cd            - BIOS optical-disc boot loaders
#  manual        - use stanzas later in this configuration file
# Default is internal,external,optical
#
#scanfor internal,external,optical

# When scanning volumes for EFI boot loaders, rEFInd always looks for
# Mac OS X's and Microsoft Windows' boot loaders in their normal locations,
# and scans the root directory and every subdirectory of the /EFI directory
# for additional boot loaders, but it doesn't recurse into these directories.
# The also_scan_dirs token adds more directories to the scan list.
# Directories are specified relative to the volume's root directory. This
# option applies to ALL the volumes that rEFInd scans. If a specified
# directory doesn't exist, it's ignored (no error condition results).
# The default is to scan no additional directories.
#
#also_scan_dirs boot,EFI/linux/kernels

# Set the maximum number of tags that can be displayed on the screen at
# any time. If more loaders are discovered than this value, rEFInd shows
# a subset in a scrolling list. If this value is set too high for the
# screen to handle, it's reduced to the value that the screen can manage.
# If this value is set to 0 (the default), it's adjusted to the number
# that the screen can handle.
#
#max_tags 0

# Set the default menu selection.  The available arguments match the
# keyboard accelerators available within rEFInd.  You may select the
# default loader using:
#  - A digit between 1 and 9, in which case the Nth loader in the menu
#    will be the default. 
#  - Any substring that corresponds to a portion of the loader's title
#    (usually the OS's name or boot loader's path).
#
#default_selection 1

# Sample manual configuration stanzas. Each begins with the "menuentry"
# keyword followed by a name that's to appear in the menu (use quotes
# if you want the name to contain a space) and an open curly brace
# ("{"). Each entry ends with a close curly brace ("}"). Common
# keywords within each stanza include:
#
#  volume    - identifies the filesystem from which subsequent files
#              are loaded. You can specify the volume by label or by
#              a number followed by a colon (as in "0:" for the first
#              filesystem or "1:" for the second).
#  loader    - identifies the boot loader file
#  initrd    - Specifies an initial RAM disk file
#  icon      - specifies a custom boot loader icon
#  ostype    - OS type code to determine boot options available by
#              pressing Insert. Valid values are "MacOS", "Linux",
#              "Windows", and "XOM". Case-sensitive.
#  graphics  - set to "on" to enable graphics-mode boot (useful
#              mainly for MacOS) or "off" for text-mode boot.
#              Default is auto-detected from loader filename.
#  options   - sets options to be passed to the boot loader; use
#              quotes if more than one option should be passed or
#              if any options use characters that might be changed
#              by rEFInd parsing procedures (=, /, #, or tab).
#  disabled  - use alone or set to "yes" to disable this entry.
#
# Note that you can use either DOS/Windows/EFI-style backslashes (\)
# or Unix-style forward slashes (/) as directory separators. Either
# way, all file references are on the ESP from which rEFInd was
# launched.
# Use of quotes around parameters causes them to be interpreted as
# one keyword, and for parsing of special characters (spaces, =, /,
# and #) to be disabled. This is useful mainly with the "options"
# keyword. Use of quotes around parameters that specify filenames is
# permissible, but you must then use backslashes instead of slashes,
# except when you must pass a forward slash to the loader, as when
# passing a root= option to a Linux kernel.

# Below are several sample boot stanzas. All are disabled by default.
# Find one similar to what you need, copy it, remove the "disabled" line,
# and adjust the entries to suit your needs.

# A sample entry for a Linux 3.3 kernel with its new EFI boot stub
# support on a filesystem called "KERNELS". This entry includes
# Linux-specific boot options and specification of an initial RAM disk.
# Note uses of Linux-style forward slashes, even in the initrd
# specification. Also note that a leading slash is optional in file
# specifications.
menuentry Linux {
        icon EFI/refind/icons/os_linux.icns
        volume KERNELS
        loader bzImage-3.3.0-rc7
        initrd initrd-3.3.0.img
        options "ro root=UUID=5f96cafa-e0a7-4057-b18f-fa709db5b837"
        disabled
}

# A sample entry for loading Ubuntu using its standard name for
# its GRUB 2 boot loader. Note uses of Linux-style forward slashes
menuentry Ubuntu {
        loader /EFI/ubuntu/grubx64.efi
        icon /EFI/refined/icons/os_linux.icns
        disabled
}

# A minimal ELILO entry, which probably offers nothing that
# auto-detection can't accomplish.
menuentry "ELILO" {
        loader \EFI\elilo\elilo.efi
        disabled
}

# Like the ELILO entry, this one offers nothing that auto-detection
# can't do; but you might use it if you want to disable auto-detection
# but still boot Windows....
menuentry "Windows 7" {
        loader \EFI\Microsoft\Boot\bootmgfw.efi
        disabled
}