Received-SPF: pass (google.com: domain of linux-embedded-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20230717075035.GA9549@tomerius.de> <CAG4Y6eTU=WsTaSowjkKT-snuvZwqWqnH3cdgGoCkToH02qEkgg@mail.gmail.com>
 <20230718053017.GB6042@tomerius.de>
In-Reply-To: <20230718053017.GB6042@tomerius.de>
From:   =?UTF-8?Q?Bj=C3=B8rn_Forsman?= <bjorn.forsman@gmail.com>
Date:   Tue, 18 Jul 2023 13:43:02 +0200
Message-ID: <CAEYzJUGC8Yj1dQGsLADT+pB-mkac0TAC-typAORtX7SQ1kVt+g@mail.gmail.com>
Subject: Re: File system robustness
To:     Kai Tomerius <kai@tomerius.de>
Cc:     "Alan C. Assis" <acassis@gmail.com>, linux-embedded@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Tue, 18 Jul 2023 at 08:03, Kai Tomerius <kai@tomerius.de> wrote:
> I should have mentioned that I'll have a large NAND flash, so ext4
> might still be the file system of choice. The other ones you mentioned
> are interesting to consider, but seem to be more fitting for a smaller
> NOR flash.

If you mean raw NAND flash I would think UBIFS is still the way to go?
(It's been several years since I was into embedded Linux systems.)

https://elinux.org/images/0/02/Filesystem_Considerations_for_Embedded_Devic=
es.pdf
is focused on eMMC/SD Cards, which have built-in controllers that
enable them to present a block device interface, which is very unlike
what raw NAND devices have.

Please see https://www.kernel.org/doc/html/latest/filesystems/ubifs.html
for more info.

Regards,
Bj=C3=B8rn