[Avila] problem with updating flash from Linux

[Ahmet Basagalar]

David,

Is there a way to do failsafe boot on redboot, so if one image does not boot 
up then the other one boots? Also can I change the redboot startup script 
through linux?

Ahmet
----- Original Message ----- 
From: "David Acker" <dacker at roinet.com>
To: "Avila" <avila at lists.unixstudios.net>
Sent: Friday, November 03, 2006 11:59 AM
Subject: Re: [Avila] problem with updating flash from Linux
Subject: [Avila] > Ahmet Basagalar wrote:
>> Hi,
>>
>> I am running into problems while updating flash from Linux. I have 
>> compiled Redboot without checksum control, so that is not an issue 
>> anymore. But when I do a kernel upgrade using 'netflash' in Linux 
>> sometimes it works and sometimes it does not, meaning redboot tries to 
>> load the kernel but system just hangs as if it is a corrupt kernel. The 
>> same happens for the filesystem, when I upgrade it by 'netflash' 
>> sometimes I got error messages during mount. Updating flash through 
>> redboot works fine.
>>
>
> We use flashcp -v to the mtd device and that works great for us.  It 
> verifies the images after writing.  You might want to keep a failsafe 
> image and change the redboot boot script to boot from that before starting 
> your upgrade.  Only switch the boot script back to your regular partition 
> once you are done and verified. That way if things go wrong, it will 
> reboot into a minimal linux that can repair itself.
>
> We also found when flashing a jffs2fs image you want to size the image the 
> same size as the flash partition.
> -Ack
>
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