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From: Sascha Hauer <s.hauer@pengutronix.de>
To: "Peter Kuennemann@Crane-Soft" <pkue@crane-soft.de>
Cc: barebox@lists.infradead.org
Subject: Re: Booting PhyTec PCM043/IMX35  from USB/SD-Card
Date: Thu, 31 May 2012 20:27:24 +0200	[thread overview]
Message-ID: <20120531182724.GA30400@pengutronix.de> (raw)
In-Reply-To: <4FBF5268.1040900@crane-soft.de>

Hi Peter,

On Fri, May 25, 2012 at 11:35:36AM +0200, Peter Kuennemann@Crane-Soft wrote:
> 
> 
> To have kernel in flash and rootfs on MMC i tried bootargs as:
> 
> ... root=/dev/mmcblk0p1 rootfstype=ext2 rootflags=noatime rw noinitrd rootwait ..
> 
> and it boots the kernel properly from flash up to:
> ...
> mmcblk0: mmc0:a95c SD01G 968 MiB     <== Recognized the sd card
>  mmcblk0: p1                         <== and partion 1
> ...
> 1f00             256 mtdblock0 (driver?)
> 1f01             128 mtdblock1 (driver?)
> 1f02            2048 mtdblock2 (driver?)
> 1f03           30336 mtdblock3 (driver?)
> 1f04         1048576 mtdblock4 (driver?)
> b300          992000 mmcblk0 driver: mmcblk
>   b301          991585 mmcblk0p1                    <=== Something missing here?
> No filesystem could mount root, tried:  ext2        <===
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,1) <===
> 
> The mmc does contain a ext2 filesystem with the proper rootfs copied from
> the jffs2.image that I mounted under Ubuntu as loop device. The kernel has ext2 fs
> support compiled in.
> 
> The rootfs on the mmc is properly accessible when booting kernel and flash footfs
> on the very same platform.

Has this been solved in the mean time? The above looks correct, I have
no idea what's wrong.

Sascha


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  reply	other threads:[~2012-05-31 18:27 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-23 15:43 Peter Kuennemann@Crane-Soft
2012-05-24 19:55 ` Sascha Hauer
2012-05-25  9:35   ` Peter Kuennemann@Crane-Soft
2012-05-31 18:27     ` Sascha Hauer [this message]
2012-05-31 19:13       ` CRANESOFT
2012-06-28  6:53       ` Peter Kuennemann@Crane-Soft
2012-06-28 10:43         ` Sascha Hauer
2012-06-28 13:36           ` Peter Kuennemann@Crane-Soft
2012-06-28 13:54             ` Sascha Hauer
2012-08-23 17:59           ` Peter
2012-08-24  8:46             ` Jan Lübbe
2012-08-27  7:45               ` Peter

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