9990-main.sh: activate LVM volumes if needed.

[live-boot-grml.git] / components / 9990-main.sh

diff --git a/components/9990-main.sh b/components/9990-main.sh
index 7fb7ed3..063445b 100755 (executable)
--- a/components/9990-main.sh
+++ b/components/9990-main.sh
@@ -80,6 +80,30 @@ Live ()
                                fi
                        fi
 
+                       # If the live media location is given via command line and access to it
+                       # involves LVM volumes, the corresponding volumes need to be activated.
+                       IFS=','
+                       for dev in $(echo "$LIVE_MEDIA")
+                       do
+                               case "$dev" in
+                               /dev/mapper/*)
+                                       eval $(dmsetup splitname --nameprefixes --noheadings --rows "${dev#/dev/mapper/}")
+                                       if [ "$DM_VG_NAME" ] && [ "$DM_LV_NAME" ]
+                                       then
+                                               lvm lvchange -aay -y --sysinit --ignoreskippedcluster "$DM_VG_NAME/$DM_LV_NAME"
+                                       fi
+                                       ;;
+                               /dev/*/*)
+                                       # Could be /dev/VG/LV; use lvs to check
+                                       if lvm lvs -- "$dev" >/dev/null 2>&1
+                                       then
+                                               lvm lvchange -aay -y --sysinit --ignoreskippedcluster "$dev"
+                                       fi
+                                       ;;
+                               esac
+                       done
+                       unset IFS
+
                        # Scan local devices for the image
                        i=0
                        while [ "$i" -lt 60 ]