From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B49F1C38145 for ; Tue, 6 Sep 2022 09:09:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239295AbiIFJJQ (ORCPT ); Tue, 6 Sep 2022 05:09:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233630AbiIFJJP (ORCPT ); Tue, 6 Sep 2022 05:09:15 -0400 X-Greylist: delayed 487 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 06 Sep 2022 02:09:14 PDT Received: from kyoto-arc.or.jp (ns.kyoto-arc.or.jp [202.252.247.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F70D48E9F for ; Tue, 6 Sep 2022 02:09:14 -0700 (PDT) Received: from [192.168.2.28] ([202.252.247.10]:25604) by kyoto-arc.or.jp with [XMail ESMTP Server] id for from ; Tue, 6 Sep 2022 18:01:03 +0900 Mime-Version: 1.0 X-Sender: kengo@ms.kyoto-arc.or.jp X-Mailer: QUALCOMM MacOS Classic Eudora Version 6J Jr6 Message-Id: In-Reply-To: <9c295a8c-5167-116e-4fae-d548f1deb3b2@zoho.com> References: <655f97cc-64e6-9f57-5394-58 f9c3b83a6f@gmx.com><40b209eb-9048-da0c-e776-5e143ab38571@zoho.com><72a78cc 0-4524-47e7-803c-7d094b8713ee@gmx.com><00984321-3006-764d-c29e-1304f89652a e@zoho.com><18300547-1811-e9da-252e-f9476dca078c@gmx.com><4691b710-3d71-bd 26-d00a-66cc398f57c5@zoho.com><7553372e-1485-63ae-d3f1-e9e0a318b2f6@gmx.co m> <9c295a8c-5167-116e-4fae-d548f1deb3b2@zoho.com> Date: Tue, 6 Sep 2022 17:59:21 +0900 To: linux-btrfs@vger.kernel.org From: "Kengo.M" Subject: delete whole file system Content-Type: text/plain; charset="us-ascii" ; format="flowed" Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi folks I made raid5 file system by btrfs like below sudo mkfs.btrfs -L raid5.btrfs -d raid5 -m raid1 -f /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde And mount /mnt/raid5.btrfs sudo btrfs filesystem show Label: 'raid5.btrf' uuid: 23a34a45-8f5e-40f5-8cda-xxxxxxxxxxxx Total devices 5 FS bytes used 128.00KiB devid 1 size 2.73TiB used 1.13GiB path /dev/sda devid 2 size 2.73TiB used 1.13GiB path /dev/sdb devid 3 size 2.73TiB used 1.13GiB path /dev/sdc devid 4 size 2.73TiB used 1.13GiB path /dev/sdd devid 5 size 2.73TiB used 1.13GiB path /dev/sde So,I want to delete this file system. btrfs device delete /dev/sda /mnt/raid5.btrfs But delete /dev/sda only. Please Someone tell me how to delete whole this file system. BRD Kengo.m