Try to load dm-mod kernel module if kpartx fails

[grml-debootstrap.git] / grml-debootstrap

diff --git a/grml-debootstrap b/grml-debootstrap
index 1ab3dd7..7a3728f 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -264,7 +264,7 @@ stage() {
 # }}}
 
 # make sure we have what we need {{{
-check4progs debootstrap dialog || bailout 1
+check4progs debootstrap || bailout 1
 # }}}
 
 # source main configuration file {{{
@@ -354,7 +354,7 @@ fi
 
 # make sure we have what we need {{{
 if [ -n "$VIRTUAL" ] ; then
-  check4progs kpartx mksh qemu-img || bailout 1
+  check4progs kpartx mksh parted qemu-img || bailout 1
 fi
 # }}}
 
@@ -748,6 +748,8 @@ fi
 # interactive mode {{{
 interactive_mode()
 {
+  check4progs dialog || bailout 1
+
   welcome_dialog
 
   prompt_for_release
@@ -952,6 +954,13 @@ prepare_vm() {
   dd if=/dev/zero bs=1 conv=notrunc count=64 seek=446 of="$TARGET"
   parted -s "${TARGET}" 'mkpart primary ext3 2M -1'
 
+  # if dm-mod isn't available then kpartx will fail with
+  # "Is device-mapper driver missing from kernel? [...]"
+  if ! kpartx -av $TARGET >/dev/null 2>&1 ; then
+    einfo "Device-mapper not ready yet, trying to load dm-mod module."
+    modprobe dm-mod ; eend $?
+  fi
+
   DEVINFO=$(kpartx -av $TARGET) # 'add map loop1p1 (253:0): 0 6289408 linear /dev/loop1 2048'
   if [ -z "${DEVINFO}" ] ; then
     eerror "Error setting up loopback device." ; eend 1