Hi, all, After I used LVM2 to create PV, VG, LV on the attached storage disks, I want to format logical volume as a file system and possibly extend the file system of LV online. But when I prefer to "ext3" file system, I find the tool "resize2fs" only can resize ext3 file system offline. OS: Linux Fedora Core2(kernel 2.6.7-1.494.2.2smp) LVM version: 2.00.15(2004-04-19) Library version: 1.00.14-ioctl(2004-04-06) Driver version: 4.1.0 Operations: pvcreate /dev/sda pvcreate /dev/sdb vgcreate vg1 /dev/sda /dev/sdb lvcreate -L 100G -n lv1 vg1 mke2fs /dev/vg1/lv1 mount /dev/vg1/lv1 /mnt lvextend -L +50G /dev/vg1/lv1 Then I used "resize2fs" tool to extend file system, but failed. I know it must be done when "umount" the lv1. If another tool can finish that running under Linux? Or if any other file system can be mounted and resized online under Linux? XFS? I don't know. Anyone can help me? Thanks! Rocty Wang 2004-10-09