From 41f8a4f14f96696b29debde70d9b510c59d5e509 Mon Sep 17 00:00:00 2001
From: Philippe Seewer <philippe.seewer@bfh.ch>
Date: Fri, 16 Oct 2009 11:00:04 +0200
Subject: [PATCH] Add dm_mod loader

Some kernel configurations might build base dm support as a module.
Add module dm which ensures that dm_mod is there and loaded.
---
 modules.d/90dm/check          | 4 ++++
 modules.d/90dm/dm-pre-udev.sh | 1 +
 modules.d/90dm/install        | 4 ++++
 modules.d/90dm/installkernel  | 2 ++
 modules.d/90dmraid/check      | 3 +++
 modules.d/90lvm/check         | 3 +++
 6 files changed, 17 insertions(+)
 create mode 100755 modules.d/90dm/check
 create mode 100644 modules.d/90dm/dm-pre-udev.sh
 create mode 100755 modules.d/90dm/install
 create mode 100755 modules.d/90dm/installkernel

diff --git a/modules.d/90dm/check b/modules.d/90dm/check
new file mode 100755
index 000000000..008f04fcf
--- /dev/null
+++ b/modules.d/90dm/check
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+exit 255
+
diff --git a/modules.d/90dm/dm-pre-udev.sh b/modules.d/90dm/dm-pre-udev.sh
new file mode 100644
index 000000000..67eeb1cb1
--- /dev/null
+++ b/modules.d/90dm/dm-pre-udev.sh
@@ -0,0 +1 @@
+modprobe dm_mod
diff --git a/modules.d/90dm/install b/modules.d/90dm/install
new file mode 100755
index 000000000..2ec06308e
--- /dev/null
+++ b/modules.d/90dm/install
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+inst_hook pre-udev 30 "$moddir/dm-pre-udev.sh"
+
diff --git a/modules.d/90dm/installkernel b/modules.d/90dm/installkernel
new file mode 100755
index 000000000..f970827b5
--- /dev/null
+++ b/modules.d/90dm/installkernel
@@ -0,0 +1,2 @@
+#!/bin/bash
+instmods dm_mod
diff --git a/modules.d/90dmraid/check b/modules.d/90dmraid/check
index eacec6053..147b7fa46 100755
--- a/modules.d/90dmraid/check
+++ b/modules.d/90dmraid/check
@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# We depend on dm_mod being loaded
+[ "$1" = "-d" ] && echo dm
+
 # if we don't have dmraid installed on the host system, no point
 # in trying to support it in the initramfs.
 which dmraid >/dev/null 2>&1 || exit 1
diff --git a/modules.d/90lvm/check b/modules.d/90lvm/check
index 25f24e23e..20f21e8f8 100755
--- a/modules.d/90lvm/check
+++ b/modules.d/90lvm/check
@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# We depend on dm_mod being loaded
+[ "$1" = "-d" ] && echo dm
+
 # No point trying to support lvm if the binaries are missing
 which lvm >/dev/null 2>&1 || exit 1
 
-- 
2.47.3