Robert Sander wrote: > On Wed, 12 Sep 2007 00:42:06 +0200, > Farkas Levente <lfarkas@bppiac.hu> wrote: >> hi, >> hi we've got a server with a lvm2 pv with a dozen of logvol in it. under >> the lvm we'd like to create a raid1 array on 2 disk. unfortunately we >> create raid0 under it. but the logvols contains a lots of important >> data. we'd like to >> - put 2 new disks into the system, >> - create the raid1 array on it, >> - put a new volgroup over the raid1, > > Hi! > > Do not create a new vg. > Add the raid1 as a second pv to the existing vg. > Use pvmove to move the logical volumes from one pv to the other. > This is an online operatipn. ok everything seems to working. after i move the logvols i remove the old pv and try to boot the system. now the problem during the boot linux can't find the volume group so can't find it's / since the / is on the first logvol of the vg. this on centos-5. the strange thing if i boot from centos rescue dvd it see the vg and logvols too and i can chroot /mnt/sysimage into the new real system. what can be the reason that if i boot the new system it can't find the vg and it's logvols? -- Levente "Si vis pacem para bellum!" _______________________________________________ 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/