Way Loss wrote: > Hi all, > > I am very new to LVM. Here is the detail of my > current fs. > Filesystem Size Used Avail Use% Mounted on > /dev/md1 9.4G 2.5G 6.5G 28% / > /dev/md2 9.4G 7.6G 1.4G 85% /home > /dev/md3 9.4G 6.6G 2.4G 74% /var > /dev/md4 958M 18M 892M 2% /tmp > /dev/md5 153G 119G 27G 82% /www > > My md5 is almost full and I wanna use LVM to merge > my md5 with a new partition from a new hdd. I wanna > ask if this possible for LVM to merge 2 partition > together while one of them have data on it? I can't > suffer any data loss and want to make sure that LVM > works perfectly to what I want. > Thanks all. You're out of luck. You can't take an existing partition and keep the data yet switch it over to LVM. It's like RAID that way: you need to set up the lower level stuff *before* you format the disk/partition with your filesystem and start putting data on it. To do what you want is possible, provided that you created an LVM from the beginning that had md5 as a PhysicalVolume, then created your filesystem on the Logical Volume. But it seems clear from your fstab that you didn't do that. Sorry, --Matt _______________________________________________ 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/