diff -ur LVM2.2.00.15/lib/filters/filter.c LVM2.2.00.15.new/lib/filters/filter.c
--- LVM2.2.00.15/lib/filters/filter.c	2004-04-14 19:33:51.000000000 +0200
+++ LVM2.2.00.15.new/lib/filters/filter.c	2004-05-07 04:13:01.534026664 +0200
@@ -54,6 +54,7 @@
 	{"ataraid", 16},	/* ATA Raid */
 	{"drbd", 16},		/* Distributed Replicated Block Device */
 	{"power2", 16},		/* EMC Powerpath */
+	{"i2o_block", 16},	/* I2O block disk */
 	{NULL, 0}
 };