From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8452CA6F for ; Sat, 21 Feb 2026 17:58:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.27.42.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771696701; cv=none; b=gPdV26wkoHGFZ2Q0a9Wr5lp/3t9cZEMygI2zCW0FI1nRgozeHz6Tgcy81Snla0F6EBASpSBeLg3FxDxHhGK2naJT2ul0WXoUODP+qrAH/ED7sRTcenLtl3vL8/YJ+aRmAabk91mBxsuEqUGnoLXNd0jDMYHoNPyz7GTnu7c9kOY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771696701; c=relaxed/simple; bh=wDMbnF2c6WS3XW3d8m9mysG07zzGkYWG7I8/tfXdeNM=; h=Date:From:To:Subject:Message-ID:MIME-Version:Content-Type; b=bY9YWA6+IuBoZ8HURNW2+Gg0fgbRxyD0wy3JPL+2Tvts2AoKMo2Z1qcNSSlwVwLCMHOFwj6zND09J74Ay/51sIx4LXoBaiMGkEZc+3EAfen6ImFeicExzlPcxfaAQqHH6nhqKNbVoBbp2DIf+ZKfHUraGto/bquNMTqwBp8sgkA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=free.fr; spf=pass smtp.mailfrom=free.fr; dkim=pass (2048-bit key) header.d=free.fr header.i=@free.fr header.b=fybnOo8h; arc=none smtp.client-ip=212.27.42.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=free.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=free.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=free.fr header.i=@free.fr header.b="fybnOo8h" Received: from ThinkPadT15g.lan (unknown [IPv6:2a01:e0a:e7d:7200:270f:28ee:c7cd:650]) (Authenticated sender: frederic.baldit@free.fr) by smtp4-g21.free.fr (Postfix) with ESMTPA id 0F82C19F5BE for ; Sat, 21 Feb 2026 18:58:16 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=free.fr; s=smtp-20201208; t=1771696697; bh=wDMbnF2c6WS3XW3d8m9mysG07zzGkYWG7I8/tfXdeNM=; h=Date:From:To:Subject:From; b=fybnOo8hOTZea+BxhAZ38D3xcWviEg3LLVoVZhwVkcWZIXddC0JJWaEoOEco8JY79 OxVMFhxXg5MkCwFz7hX+hMdoAb4772qOPlHrOhchgZY5xuB0i2U2zuJfaoXh6S/JHI rETv6vmizV0IanVR4bkTJbccCH5WSecUkIH0U9aHhTLQe6h2UGBdtvmiAf7UliaL4V wom0oKkWO3pkYZAoASnfrXxlDyFfhEpCwCEU0OUWIsXd2LbVL7TtWiXDR+ym3Pdhj+ yYphQk7bG3QOFvKI2kNc9P+9XQSE7m8NiHnd0BDEaazrup0i+zCJbIf13y1DS/Xgyk JEuu9Wv/ShyRw== Date: Sat, 21 Feb 2026 18:58:16 +0100 From: =?UTF-8?B?RnLDqWTDqXJpYw==?= Baldit To: linux-lvm@lists.linux.dev Subject: is it possible to use LVM AFTER system installation? Message-ID: <20260221185816.34fab009@ThinkPadT15g.lan> X-Mailer: Claws Mail 4.3.1 (GTK 3.24.49; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-lvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi everybody, I'm a debian 12 user, running it on a system which was initially=20 installed without LVM (on a thinkpad laptop)n with classical netinst. My system is totally installed on a unique nvme disk, with distinct partitions, among which a /home partition for all my personal data. I recently installed a second nvme disk (512G capacity). I would like to extend my /home ext4 partition (which is now exclusively on /dev/nvme0n1p6, 436G) so that I can keep my old data but have the possibility to split /home on the initial disk and the second recently added disk. This seems to be possible with LVM but only when decided at the beginning of the installation. Right or wrong? Or would it possible to: 0) install lvm2 on my system 1) create a new ext4 partition (512G size) on the new nvme disk (using all available space, 512G, on it) 2) create a new PV with this partition 3) create a new VG containing this unique PV 4) create a new LV on this VG 5) format this LV as an ext4 filesystem with mkfs.ext4 6) mount this LV on a new system directory, say /home1 7) migrate all the data on my old /home to the new /home1 8) modify the VG created before in order to add to it the /dev/nvme0n1p6 PV 9) resize the LV so that it can use the new PV added 10) rename /home1 to /home Is this globally correct??? Step 7 if crucial, as I really don't want any loss or corruption of personal data during the transfer. Thank's in advance for any help to my two questions,=20 F. Baldit.=20 -- Fr=C3=A9d=C3=A9ric Baldit