On Wed, Aug 29, 2012 at 9:15 PM, Frederick Grose <[email protected]> wrote: > commit d0d4f29cdd0a0e6dd1170965decb282ef5511746 > Author: Frederick Grose <[email protected]> > Date: Wed Aug 29 21:02:07 2012 -0400 > > Don't truncate the overlay file on a reset. > > diff --git a/modules.d/90dmsquash-live/dmsquash-live-root.sh > b/modules.d/90dmsquash-live/dmsquash-live-root.sh > index f8bfca6..62340a5 100755 > --- a/modules.d/90dmsquash-live/dmsquash-live-root.sh > +++ b/modules.d/90dmsquash-live/dmsquash-live-root.sh > @@ -98,7 +98,7 @@ do_live_overlay() { > if [ -f /run/initramfs/overlayfs$pathspec -a -w > /run/initramfs/overlayfs$pathspec ]; then > losetup $OVERLAY_LOOPDEV /run/initramfs/overlayfs$pathspec > if [ -n "$reset_overlay" ]; then > - dd if=/dev/zero of=$OVERLAY_LOOPDEV bs=64k count=1 > 2>/dev/null > + dd if=/dev/zero of=$OVERLAY_LOOPDEV bs=64k count=1 > conv=notrunc 2>/dev/null > fi > setup="yes" > fi
Void the above patch. I don't know why the overlay is NOT truncated without the notrunc conversion argument to dd. However, my testing shows that this bug is fixed by using the fsync conversion argument, https://bugzilla.redhat.com/show_bug.cgi?id=832884 A revised patch file is attached to the bug ticket. --Fred -- livecd mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/livecd
