Matthew Gillen wrote: > 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. Well, you're not totally out of luck, assuming the other disk is as big or bigger than /dev/md5: You could create an LVM with the new disk, create your filesystem, copy the contents of md5 to the new LVM filesystem (via tar/cpio or something that will preserve symlinks etc), then add md5 to the LVM setup (thereby destroying the data on md5) and resize your filesystem. --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/
