diff --git a/ucs/base/univention-installer/installer/modules/65_partition.py b/ucs/base/univention-installer/installer/modules/65_partition.py
index eb8faa8..b377c7e 100644
--- a/ucs/base/univention-installer/installer/modules/65_partition.py
+++ b/ucs/base/univention-installer/installer/modules/65_partition.py
@@ -1190,6 +1190,7 @@ class object(content):
 							device = self.get_real_partition_device_name(disk,num)
 							self.parent.debug('%s: lvm flag' % device)
 							ucsvgname = self.parent.container['lvm']['ucsvgname']
+							self.run_cmd('/sbin/pvremove -ff %s 2>&1', device)
 							self.run_cmd('/sbin/pvcreate %s 2>&1' % device)
 							if not vgcreated:
 								self.run_cmd('/sbin/vgcreate --physicalextentsize %sk %s %s 2>&1' % (self.parent.container['lvm']['vg'][ ucsvgname ]['PEsize'], ucsvgname, device))
diff --git a/ucs/base/univention-installer/installer/modules/66_gpt_partition.py b/ucs/base/univention-installer/installer/modules/66_gpt_partition.py
index 4d4d6c7..554c8d8 100644
--- a/ucs/base/univention-installer/installer/modules/66_gpt_partition.py
+++ b/ucs/base/univention-installer/installer/modules/66_gpt_partition.py
@@ -1401,6 +1401,7 @@ class object(content):
 						if PARTFLAG_LVM in flaglist:
 							self.parent.debug('%s: lvm flag' % device)
 							ucsvgname = self.parent.container['lvm']['ucsvgname']
+							self.run_cmd(['/sbin/pvremove', '-ff', device])
 							self.run_cmd(['/sbin/pvcreate', device])
 							if not vgcreated:
 								self.run_cmd(['/sbin/vgcreate', '--physicalextentsize',