enlarge or shrink an unmounted file system located on
.IR device .
If the filesystem is mounted, it can be used to expand the size of the
-mounted filesystem, assuming the kernel supports on-line resizing. (As
-of this writing, the Linux 2.6 kernel supports on-line resize for
-filesystems mounted using ext3 and ext4.).
+mounted filesystem, assuming the kernel and the file system supports
+on-line resizing. (Modern Linux 2.6 kernels will support on-line resize
+for file systems mounted using ext3 and ext4; ext3 file systems will
+require the use of file systems with the resize_inode feature enabled.)
.PP
The
.I size