From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 References: In-Reply-To: From: Richard Weinberger Date: Wed, 26 Sep 2018 09:16:57 +0200 Message-ID: Subject: Re: [linux-lvm] [PATCH 0/2] boot to a mapped device Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: helen.koike@collabora.com Cc: Will Drewry , snitzer@redhat.com, linux-doc@vger.kernel.org, LKML , device-mapper development , linux-lvm@redhat.com, enric.balletbo@collabora.com, kernel@collabora.com, agk@redhat.com Helen, On Wed, Sep 26, 2018 at 7:01 AM Helen Koike wrote: > > This series is reviving an old patchwork. > Booting from a mapped device requires an initramfs. This series is > allows for device-mapper targets to be configured at boot time for > use early in the boot process (as the root device or otherwise). What is the reason for this patch series? Setting up non-trivial root filesystems/storage always requires an initramfs, there is nothing wrong about this. > Example, the following could be added in the boot parameters. > dm="lroot,,,rw, 0 4096 linear 98:16 0, 4096 4096 linear 98:32 0" root=/dev/dm-0 Hmmm, the new dm= parameter is anything but easy to get right. -- Thanks, //richard