Hi,
There is a difference between the help of lvresize and its man page. In the manpage, there is nothing about the -r or --resizefs function. Centos4.
[root@serv01 ~]# lvresize Please specify either size or extents (not both) lvresize: Resize a logical volume
lvresize [-A|--autobackup y|n] [--alloc AllocationPolicy] [-d|--debug] [-h|--help] [-i|--stripes Stripes [-I|--stripesize StripeSize]] {-l|--extents [+|-]LogicalExtentsNumber[%{VG|LV|FREE}] | -L|--size [+|-]LogicalVolumeSize[kKmMgGtTpPeE]} [-n|--nofsck] [-r|--resizefs] [-t|--test] [--type VolumeType] [-v|--verbose] [--version] LogicalVolume[Path] [ PhysicalVolumePath... ]