On Sun, Oct 31, 2010 at 04:34:44PM +0100, Alex Bligh wrote: > That's /almost/ perfect: > > 9 247808 15069184 14336 unwritten,eof > testfile: 2 extents found > > I think all I need do is clear the unwritten flag in each of the extents. > Else I think if I read the file using ext4 later (i.e. after I've > written directly to the sectors concerned) it will appear to be > empty. Yes, it would appear empty. It is due to security concers others mentioned too. > Any idea how I do that? Sorry, I don't. debugfs(8) only appears to have read-only support for reading extents, and not for (re-)writing them, so I guess you'll have to find some function in libext2fs if it exists (or write your own if it doesn't) to use on unmounted fs. -- Opinions above are GNU-copylefted. _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
