This details the steps required to unmount and resize an ext3 formatted logical volume (LVM) on Linux. The steps listed are performed on Debian, but should be more or less the same for any distro.
The basic approach is more or less the same for any filesystem, though some of the tools used for resizing may vary
# Set the following variables # # MOUNTPOINT - should be the path of the mount (e.g. /mnt/myfiles) # VOL_NODE - The node of the LVM volume, will normally be /dev/[VOLGROUP NAME]/[Volume Name] # # Get details of the node used by the mount mount | grep $MOUNTPOINT # If exported via NFS, Remove it from NFS exports to unlock the mount point nano /etc/exports service nfs-kernel-server restart # Unmount the volume umount $MOUNTPOINT # Check how much unallocated space is in the Volume Group vgdisplay # Extend the mount by 1TB lvextend -L+1T $VOL_NODE # Run a FSCK against the filesystem (otherwise resize2 will refuse to run) e2fsck -f $VOL_NODE # Resize the filesystem to the new size of the volume resize2fs $VOL_NODE # Mount again mount $MOUNTPOINT # Verify the new size df -h | grep $MOUNTPOINT # If needed, re-enable in NFS nano /etc/exports service nfs-kernel-server restart