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 B3F39C433EF for ; Sat, 30 Apr 2022 20:09:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244889AbiD3UM0 (ORCPT ); Sat, 30 Apr 2022 16:12:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240648AbiD3UMZ (ORCPT ); Sat, 30 Apr 2022 16:12:25 -0400 Received: from mail-qv1-xf36.google.com (mail-qv1-xf36.google.com [IPv6:2607:f8b0:4864:20::f36]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62624719EA for ; Sat, 30 Apr 2022 13:09:02 -0700 (PDT) Received: by mail-qv1-xf36.google.com with SMTP id a5so7747605qvx.1 for ; Sat, 30 Apr 2022 13:09:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:from:mime-version:date:subject:message-id :to; bh=QeqMI9kOZ3XsfK+7r6GsaYHD1psCsveCgY6TGMUnuTg=; b=jm2draaARdoVrv0G08mqDC1QkKFo6EKlV5W1HKRO7rJgS/Z/XqPFZL+hcQGY3otahV COaigHUVz/9W5X/AR1Xg2NAxuFsB3FLkCTpw5tdfAWPGA5wlJ7sMKP/giKpUoGSP6mcC 1qdy7mIvTzpWoA96qz1vRkXUrw4QsQa0aDw2+/ssQnGJCe12BCzrogXlbEcId0IM7d50 gwch+gH5gSOa8mu0PBsBbJq/6lAwTmd4LZMa+Ckr/z19g41zAcNEV9zal+mVylWmQ7kG IJ6zye0o/KbczMS4wuSAqP+nW6qptqZznDz0dek7TB4wYlS2wEwHYluFe1S5TLcDWixv kS3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:content-transfer-encoding:from:mime-version:date :subject:message-id:to; bh=QeqMI9kOZ3XsfK+7r6GsaYHD1psCsveCgY6TGMUnuTg=; b=yB1XglN8s7cep2U6X0Z2JmUuzEaBWn5q+tOmAYk6SpuclOcmxbd4g8NUxhFJjwi5M9 DVSjo/RimnNjoXhEr1wRd527GiSPM3i5DnVdyQu6bjnnIYOK34Ky+UwO6DU6eYpAdYIi QPDqIjY4saPnBmpNFtDGo5xNUv8yzXgqbpzdbtcm/h7F3fx3DkvqbAiQIzNHTGpfTX8X z0UQxBOD1W3kvapzOZqy1aEjUUpwVnEC/8QryllOwF84lTgbiJXhYYSd40EEdHEfWFJO 4yZ7V4nVUd/09RQfMsGm7ZAF52u3wbDKUfZGbmw0nV7ZNAimqDwVKImI06F3aAVFbFQc PBLQ== X-Gm-Message-State: AOAM530e6rWUA05vBzHHMHv8+mvJBQ/kKyuAN8W9t8fXM62i1RRTatTZ gjI+1UfbKBv0HDMtUGTqh0HtDNb2Qf8= X-Google-Smtp-Source: ABdhPJwlet8TMJNRZ2epytFhzstHjAtmNIsZq3h8OVyOKgjR6fsLc3XqosRwfNeN2qFCzuONOMNHoQ== X-Received: by 2002:a05:6214:c2f:b0:456:553a:73cb with SMTP id a15-20020a0562140c2f00b00456553a73cbmr4081531qvd.29.1651349341049; Sat, 30 Apr 2022 13:09:01 -0700 (PDT) Received: from smtpclient.apple ([2601:46:c600:af85:e40a:9df7:4908:4148]) by smtp.gmail.com with ESMTPSA id o20-20020a05620a229400b0069fc13ce23asm1598151qkh.107.2022.04.30.13.09.00 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 30 Apr 2022 13:09:00 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: John Center Mime-Version: 1.0 (1.0) Date: Sat, 30 Apr 2022 16:08:59 -0400 Subject: How to convert a directory to a subvolume Message-Id: <87238001-69C5-4FA8-BE83-C35338BC8C81@gmail.com> To: linux-btrfs@vger.kernel.org X-Mailer: iPad Mail (19E258) Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hi, I just installed Ubuntu 22.04 with a btrfs raid1 root filesystem. I want to= convert a directory, like /opt, into a subvolume. I haven=E2=80=99t been ha= ving much luck. /opt is empty right now, so it=E2=80=99s a good candidate f= or conversion. Could someone please explain how to do it? I=E2=80=99ve bee= n at a dozen different websites, & tried different variations of the =E2=80=9C= btrfs subvolume create=E2=80=9D command, but nothing works when I go to moun= t it. I think I=E2=80=99m missing something simple, but not sure what it is= . Thanks! -John=20 Sent from my iPad=