update docs to have mdraid info

Signed-off-by: Zen <[email protected]>

Author: desultory

docs/configuration.md

@@ -112,7 +112,10 @@ Similarly `ugrd.kmod.novideo` `nonetwork`, and `nosound` exist to ignore video,
 ### Filesystem modules
 
 `autodetect_root` (true) Set the root mount parameter based on the current root label or uuid.
+`autodetect_root_dm` (true) Attempt to automatically configure virtual block devices such as LUKS/LVM/MDRAID.
 `autodetect_root_luks` (true) Attempt to automatically configure LUKS mounts for the root device.
+`autodetect_root_lvm` (true) Attempt to automatically configure LVM mounts for the root device.
+`autodetect_root_mdraid` (true) Attempt to automatically configure MDRAID mounts for the root device.
 `autodetect_init_mount'` (true) Automatically detect the mountpoint for the init binary, and add it to `late_mounts`.
 
 #### ugrd.fs.mounts

readme.md

@@ -26,6 +26,7 @@ The original goal of this project was to create an initramfs suitable for decryp
 * Root mount, using `/proc/mounts`. `root=` and `rootflags=` can be used but are not required.
 * LUKS auto-configuration and validation for the root mount
 * Rootfs LVM, including under LUKS, is auto-mounted
+* MDRAID auto-configuration for the root mount.
 * BTRFS root subvolumes are automatically detected, but can be overridden or `subvol_selector` can be used to select a subvolume at boot time.
 * `/usr` auto-mounting if the init system requires it
 * Auto-detection of kernel modules required by the storage device used by the root filesystem