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diff --git a/core/lvm2/lvm2_install b/core/lvm2/lvm2_install
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+# vim: set ft=sh:
+
+install ()
+{
+ MODULES=" dm-mod dm-snapshot dm-mirror"
+ BINARIES=""
+ FILES=""
+ SCRIPT="lvm2"
+
+ add_dir "/dev/mapper"
+ add_binary "/sbin/lvm"
+ add_binary "/sbin/dmsetup"
+ add_file "/lib/udev/rules.d/10-dm.rules"
+ add_file "/lib/udev/rules.d/13-dm-disk.rules"
+ add_file "/lib/udev/rules.d/95-dm-notify.rules"
+ add_file "/lib/udev/rules.d/11-dm-lvm.rules"
+}
+
+help ()
+{
+cat<<HELPEOF
+ This hook loads the necessary modules for an LVM2 root device.
+
+ The optional lvmwait= parameter followed by a comma-separated
+ list of device names can be given on the command line.
+ It will cause the hook to wait until all given devices exist
+ before trying to scan and activate any volume groups.
+HELPEOF
+}