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From: Jan Kardell <jan.kardell@telliq.com>
To: Richard Weinberger <richard.weinberger@gmail.com>,
	Emil Lenngren <emil.lenngren@gmail.com>
Cc: Richard Weinberger <richard@nod.at>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	Patrick Doyle <wpdster@gmail.com>,
	Artem Bityutskiy <dedekind1@gmail.com>
Subject: Re: [PATCH 1/1] ubi: Allow ubiblock devices nodes to be created by volume name instead of volume ID.
Date: Sun, 29 Sep 2019 15:39:23 +0200	[thread overview]
Message-ID: <f07e281f-a8e1-b4f8-de4a-264501f565f5@telliq.com> (raw)
In-Reply-To: <CAFLxGvxT3qDJT+7T4DQOq2j45OPV1AuvErEaYfpLP6SH7LX0OQ@mail.gmail.com>

Richard Weinberger skrev:
> On Wed, Aug 28, 2019 at 3:39 PM Emil Lenngren <emil.lenngren@gmail.com> wrote:
>> Will this really work when passing the rootfs to the kernel command
>> line like "root=/dev/ubiblock0_rootfs"? If the udev rules that set up
>> the symbolic link /dev/ubiblock0_rootfs are stored in a file on the
>> rootfs itself, I guess that symlink can't be made available before the
>> rootfs is mounted...
> No, this will not work directly from the kernel command line.
> For any kind non-trivial root you need an initramfs,
> that's the whole point of initramfs. :-)
>

I have this on my cmdline:

root=ubi0:rootfs rw ubi.mtd=rootfs,2048 rootfstype=ubifs

Maybe a bit confusing that both the MTD partition and the UBI volume are 
named rootfs:-) The board uses a very old 3.14 kernel from OpenWrt, I 
believe the MTD parts is vanilla. Doesn't this work on a more recent kernel?

//Jan

-- 

"I have always wished for my computer to be as easy to use as my telephone; my wish has come true because I can no longer figure out how to use my telephone."
- Bjarne Stroustrup


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  parent reply	other threads:[~2019-09-29 13:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-04 15:29 [PATCH 1/1] ubi: Allow ubiblock devices nodes to be created by volume name instead of volume ID Patrick Doyle
2019-04-04 19:37 ` Richard Weinberger
2019-08-14 12:34   ` Emil Lenngren
2019-08-14 18:06     ` Patrick Doyle
2019-08-18 21:03       ` Richard Weinberger
2019-08-18 20:49     ` Richard Weinberger
2019-08-28 13:38       ` Emil Lenngren
2019-08-28 14:13         ` Richard Weinberger
2019-09-29 13:39           ` Jan Kardell
2019-09-29 13:39           ` Jan Kardell [this message]
2019-09-29 17:40             ` Richard Weinberger
2019-12-30 17:31     ` Ezequiel Garcia
2020-01-02 19:06       ` Patrick Doyle
2020-01-08 22:43       ` Richard Weinberger

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