Hello FWIW I tried to apply the unionmount patch from submounts branch to my kernel (2.6.34 Debian kernel) and boot a live system using the kernel. The system boots but locks up during init. The first boot method uses tmpfs union/squashfs/loop/FUSE(httpfs) or tmpfs union/squashfs/loop/iso9660/loop/FUSE(httpfs) and triggers the BUG_ON(*next_ud != NULL); in union_add_dir when udev starts whereas the other method which uses tmpfs union/squashfs/loop/iso966/iscsi crashes because at the point when iscsid is started during boot as the iscsi drive is disconnected for some reason. As the kernel does not include aufs I cannot easily test that it works as expected with that but both boot methods used to work with 2.6.32 kernels and aufs. Thanks Michal -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html