[OpenWrt-Devel] [RFC] [mvebu] WRT1900AC syscfg as overlay

[Imre Kaloz]

Hi Mark,

On Tue, 13 Jan 2015 22:18:13 +0100, mark milburn  
<mark.a.milburn at gmail.com> wrote:

> I believe this is the appropriate forum for discussing this.  Let me
> know if this is not the case.
>
> I think that employing the syscfg partition as the overlayfs is not
> useful for this device, and for at least one case, harmful.
>
> The current setup that allows for a primary and alternate firmware
> image to be loaded is useful, it adds insurance if you aren't using
> the squashfs failsafe.  However:
>
> 1.  If a configuration problem prevents the device from booting, or
> renders the device effectively inaccessible, booting to the alternate
> image may not allow the device to be recovered.  I think this negates
> the utility of having an alternate image.

> 2.  One cannot test two different configurations effectively using two
> different boot images.
>
> Provided it does not affect the ability of a user to flash his or her
> firmware back to a manufacturer image, I would suggest that mtdparts
> be redefined and syscfg removed.

Mainline OpenWrt doesn't use syscfg as the overlay, we only use it to  
store the backup tarfile (if you choose to keep it) upon sysupgrading.


Imre
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