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List:       uclinux-dev
Subject:    Re: [uClinux-dev] Re: how to upgrade the jffs2 of root in	linux
From:       Microbit_Ubuntu_9102 <microbit () virginbroadband ! com ! au>
Date:       2009-11-27 23:07:26
Message-ID: 1259363246.3600.4.camel () develop
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On Fri, 2009-11-27 at 20:13 +0000, Ram wrote:
> Hi,
> I have been looking for similar way to upgrade jffs2 based system.
> 1. I stop all the application processes.  All system processes are running.
> 2. Transferred a upgrade jffs2 image to RAM
> 3.I am not clear how to mount jffs2 in RAM, do you mean we should loop
>  mount or mount the upgrade image in RAM disk?
> 4.  I tried to unmount flash based jffs2, but it fails with resource busy
> It would be very useful if you could clarify the above steps
> 
> Thanks 
> Ram
> 
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Hi,

I don't understand why you'd want to mount JFFS2 on RAM ?
It's specific to deal with flash. Perhaps others can discuss.

When you unmount, make sure you're not in the directory you're
unmounting. As an example, say I mount sdd1 to a local root
directory /mnt :

mount /dev/sdd1 /mnt

to unmount, also make sure you unmount on the *local* mounted dir :

umount /mnt

HTH
B rgds
Kris

-- 
Best regards,
Kris


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