From nobody Sun Oct 5 19:22:48 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1567522671; cv=none; d=zoho.com; s=zohoarc; b=Jvmm649gXUC/gvxY7FrMznWksP/Zlx0u+LW6lFz/isVGrxdm1+fIvt0NI3sZDvOfW4Veg3bT+z29rumItTdxzxDsYtDJJ6Dd1fYgc8eIsrP5kqS4OBOrk5BQrZ5aDz3uzCu8RMfspWrydKCqzFt+EX/0wqWEMcNxEsEa8raexCk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1567522671; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To:ARC-Authentication-Results; bh=VEl4ub7j6K9MRTlMzINf6iYsqYrxksC1n6zn1BxG6Fs=; b=TiYf8aJpusIkB8dEnUbxPaA7B6IFrK7/Zd9vcNo+L8FZ05VGkGPUV9HB0SlHRjk68iNGSeGzS0W9SxPuNFkMKUtsECmJGgqvrI4zlocuGz62AwWVHDuZRRwOyhMqKBAcRoa29usygUu3avIGA90XIL+q4nEbTS/ryzDFMCU3IS8= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1567522671516901.3945436932513; Tue, 3 Sep 2019 07:57:51 -0700 (PDT) Received: from localhost ([::1]:47142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i5AFi-0003Jm-89 for importer@patchew.org; Tue, 03 Sep 2019 10:57:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48522) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i5AEd-0002Fs-GG for qemu-devel@nongnu.org; Tue, 03 Sep 2019 10:56:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i5AEc-0008Ko-Cj for qemu-devel@nongnu.org; Tue, 03 Sep 2019 10:56:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36706) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i5AEZ-0008JM-Q7; Tue, 03 Sep 2019 10:56:39 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1F29CC057FA6; Tue, 3 Sep 2019 14:56:38 +0000 (UTC) Received: from blue.redhat.com (ovpn-116-234.phx2.redhat.com [10.3.116.234]) by smtp.corp.redhat.com (Postfix) with ESMTP id 81E915D9E1; Tue, 3 Sep 2019 14:56:37 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Tue, 3 Sep 2019 09:56:34 -0500 Message-Id: <20190903145634.20237-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Tue, 03 Sep 2019 14:56:38 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH] docs: Update preferred NBD device syntax X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vsementsov@virtuozzo.com, rjones@redhat.com, qemu-block@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Mention the preferred URI form, especially since NBD is trying to standardize that form: https://lists.debian.org/nbd/2019/06/msg00012.html Signed-off-by: Eric Blake Reviewed-by: John Snow --- qemu-doc.texi | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/qemu-doc.texi b/qemu-doc.texi index 577d1e837640..c83fb347d77e 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -297,7 +297,14 @@ qemu-system-i386 -drive file=3Discsi://192.0.2.1/iqn.2= 001-04.com.example/1 @item NBD QEMU supports NBD (Network Block Devices) both using TCP protocol as well -as Unix Domain Sockets. +as Unix Domain Sockets. With TCP, the default port is 10809. -Syntax for specifying a NBD device using TCP +Syntax for specifying a NBD device using TCP, in preferred URI form: +``nbd://[:]/[]'' + +Syntax for specifying a NBD device using Unix Domain Sockets; remember +that '?' is a shell glob character and may need quoting: +``nbd+unix:///[]?socket=3D'' + +Older syntax that is also recognized: ``nbd::[:exportname=3D]'' -Syntax for specifying a NBD device using Unix Domain Sockets ``nbd:unix:[:exportname=3D]'' Example for TCP @example -qemu-system-i386 --drive file=3Dnbd:192.0.2.1:30000 +qemu-system-i386 --drive file=3Dnbd://192.0.2.1:30000 @end example Example for Unix Domain Sockets @example -qemu-system-i386 --drive file=3Dnbd:unix:/tmp/nbd-socket +qemu-system-i386 --drive "file=3Dnbd+unix:///?socket=3D/tmp/nbd-socket" @end example @item SSH --=20 2.21.0