On Sat, Jan 29, 2000 at 11:37:14AM +0100, Jaromír Dole?ek wrote:
> What I think is happening to you is that on mount update, the superblock
> is not read again, so the filesystem runs with the same tunefs options
> as it did when it was mounted ro. Then on umount, it flushes
> it's idea of superblock to disk, actually overwriting your changes.
	So perhaps tunefs should be able to modify the in memory idea
of the superblock.  (similar to the disklabel dual kernel-ioctl/write-to-disk
method)  Or maybe cause it to be discarded and re-read.

eric