sys-utils/mount.c, mk_exit_code() If the mount syscall returns EACCESS, the code treats this as meaning that RW access to the block device wasn't allowed - it switches to RO for all future mount attempts. This is incorrect though, because EACCESS could just mean that that particular filesystem doesn't support RW: iso9600 returns EACCESS if you try to mount RW. The end result is that if we're trying to mount by trying every filesystem type (your libblkid doesn't know about your filesystem yet..), and the correct filesystem was listed after iso9600 in /proc/filesystems, mount will always mount RO (unless you specify the filesystem type with -t). -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html