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Date: Mon, 20 Jul 2009 08:14:14 +0300
Message-ID: <9c789a000907192214k2f523dc2w9f1f62d121a247f@mail.gmail.com>
Subject: Re: Mounting a USB flash stick based root FS directly.
From: Cristian Axenie <cristian.axenie@gmail.com>
To: Dushara Jayasinghe <DusharaJ@optiscan.com>
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Hello !
If you properly set the root fs on your USB flash you should try to
set it up using some uBoot bootargs :

e.g. :

setenv usbstick_args setenv bootargs root=/dev/sdXX ro
rootdelay=$HOW_MANY_SECONDS_TO_WAIT rootfstype=$YOUR_FS_TYPE
init=/sbin/init console=$consoledev,$baudrate;

setenv usbstick 'run usbstick_args;bootm fe500000 - fe700000'

setenv bootcmd run usbstick

Best !

On 7/20/09, Dushara Jayasinghe <DusharaJ@optiscan.com> wrote:
> Hi all,
>
> I'm attempting to mount the root file system directly from a USB flash stick
> (thus avoiding a ram-disk). The init thread is delayed until the USB device
> is enumerated. However, I find the call to sys_mount() in line 218 @
> http://git.denx.de/?p=linux-2.6-denx.git;a=blob;f=init/do_mounts.c;h=8d4ff5afc1d80b56963cbf119b162a3ebce61124;hb=ad2a8c8d0593bf2d1ef163f1ca7574f02b2e770e
> fails. The problem is I can't work out where sys_mount() is implemented.
>
> I'm working off the 2.6.29-DENX kernel (commit id
> ad2a8c8d0593bf2d1ef163f1ca7574f02b2e770e). and My target CPU is an
> mpc8349.
>
>
> Thanks in advance.
>
>
> Dushara Jayasinghe
>
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