[Commotion-dev] TPLink w3040

[Ben West]

Also, sorry for typo: "Theoretically, this reduces the space used by all
the Luci web UI source files, although I've *yet* been able to observe
*any*significant image size decrease ..."

On Sun, Jun 2, 2013 at 11:18 AM, Ben West <ben at gowasabi.net> wrote:

> Hi Saemus,
>
> I've still been tooling around with squeezing meshing firmware image onto
> a similar TP-Link TL-MR3020, which also has 4MB flash.  I'm just about to
> the point where I can get the kernel, basic filesystem, and even a
> coovachilli captive portal into 4MB, but I've had to do / am doing the
> following:
>
> - Add the "-funit-at-a-time" compile optimiization flag, and use GCC
> v4.7.  This basically tells GCC to work harder at reducing compiled code
> size, and maybe yields 5-10% smaller images.
>
> - Swap out libopenssl for libcyassl for use with curl.  (If you're using
> curl.)  I can share the patches for this if you'd like.
>
> - While retaining IPv6 support in the kernel, switch all IPv6-related
> packages over to modules not included with the compile image.
>
> - Select "Compressed source" or "Pre-compiled source" for the luci lua
> source files.  Theorectically, this reduces the space used by all the Luci
> web UI source files, although I've been able to observe and significant
> image size decrease with this.
>
> - Port the IBSS-RSN stuff from hostapd + wpa_supplicant over to one of the
> smaller packages like wpad-mini.  (Not done yet.)
>
> Note that installing *.ipk files from a mounted USB drive at boot should
> be quite doable, but you will want to make sure you have opk write the
> installed files to /tmp or something like that.  Likewise, important
> binaries and shared libraries installed to the ramdisk will probably need
> to have symlinks pointing to their proper location under / .  (I think the
> symlinks can just be stored on the internal root filesystem OK.  They'll
> just dangle until opkg installs the necessary files on each boot.)
>
> I'm including the .config file I've used for my TP-Link TL-MR3020 for
> reference, although do please bear in mind this wasn't used for compiling
> Commotion.  Likewise, my config files so far exclude all USB stuff.
>
>
> On Sun, Jun 2, 2013 at 9:14 AM, Seamus Tuohy <s2e at opentechinstitute.org>wrote:
>
>> Hello All,
>>
>> I worked on getting a Commotion image to work on the battery powered TP
>> Links that we just got in and quickly discovered that they only have 4MB
>> of memory available. Even when I removed nearly every package imaginable
>> I still could not get the image to build.
>>
>> It looks as if there is no easy way to find out the size of a squashfs
>> package so I will try to remove everything except basic functionality
>> and usb support and then get everything back on by running it off of a
>> mounted usb this week.
>>
>> Just an FYI.
>>
>> s2e
>> _______________________________________________
>> Commotion-dev mailing list
>> Commotion-dev at lists.chambana.net
>> https://lists.chambana.net/mailman/listinfo/commotion-dev
>>
>
>
>
> --
> Ben West
> http://gowasabi.net
> ben at gowasabi.net
> 314-246-9434
>



-- 
Ben West
http://gowasabi.net
ben at gowasabi.net
314-246-9434
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