Thanks Alasdair, your suggestion work. However, I'm encountering yet another problem....;p Looks like device-mapper always return an error on "cmd 13" when I tried to create a lv: [root@DAP-RHLNX1 2.4.21]# lvcreate -v -L 32 -n syueVol vg00-lvm1 device-mapper ioctl cmd 13 failed: Invalid argument device-mapper ioctl cmd 13 failed: Invalid argument Finding volume group "vg00-lvm1" Creating logical volume syueVol Archiving volume group "vg00-lvm1" metadata. Creating volume group backup "/etc/lvm/backup/vg00-lvm1" Found volume group "vg00-lvm1" Loading vg00--lvm1-syueVol Zeroing start of logical volume "syueVol" Creating volume group backup "/etc/lvm/backup/vg00-lvm1" Logical volume "syueVol" created [root@DAP-RHLNX1 2.4.21]# Here are the version information: ========================= LVM version 2.2.00.22 Device Mapper version 1.00.18 Does anyone know what the problem is? Thanks, Stanley On Mon, 13 Sep 2004 11:41:34 +0100, Alasdair G Kergon <agk@redhat.com> wrote: > On Mon, Sep 13, 2004 at 01:58:14AM -0700, Stanley Yue wrote: > > with the lvm-mod and device-mapper from lvm2. I want to test out > > whether lvm2 utilities can detect configurations created from lvm1 > > utilities. > > > pvcreate -- ERROR: VGDA in kernel and lvmtab are NOT consistent; > > please run vgscan > > Never run LVM2 utilities while you have LVs active under LVM1. > Never run LVM1 tools while you have LVs active under LVM2. > > i.e. Never mix use of the two, and always vgchange -an before switching > between LVM1 and LVM2. > Also, if switching back from LVM2 to LVM1 you must first reset the > LVM1 driver with lvmchange -R followed by vgscan -f. > > Alasdair > -- > agk@redhat.com > _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/