[OpenWrt-Devel] Reducing the root file system in openwrt

[Arjav Parikh]

Hi Ronaldo,

I am building firmware for IPQ806x platform. I have been able to
reduce my firmware image from 22 MB to 10 MB  by disabling unwanted
kernel modules and libraries using make menuconfig.

But there are files in root-ipq806x/lib/fimrware directory of approx
size 4.4 MB. I do not require any of the files present in this
directory. I tried to remove those files by removing its entry from
root-ipq806x/usr/lib/opkg/info/wigig-firmware.list assuming that on
next build these files wont appear but still the files are there in
/lib/firmware directory.
By removing these files I can further reduce filesystem by 4 MB.


On Wed, Mar 7, 2018 at 5:07 PM, Ronaldo Afonso
<ronaldo at ronaldoafonso.com.br> wrote:
>   Hi Arjav,
>
>   Which kind of firmware are you using? An OpenWrt prebuilt (from
> https://downloads.openwrt.org/releases/) or a firmware build by yourself?
>
>   Well, in or case, I suggest you build your firmware ... using "make
> menuconfig" is the first thing to try for removing unnecessary binaries.
>
>
>
> 2018-03-07 8:02 GMT-03:00 Arjav Parikh <parikharjav24 at gmail.com>:
>>
>> Hi,
>>
>> I want to reduce the root file system size for my project. Till now
>> after removing the unnecessary kernel modules, libraries and using
>> strip binary the file system size has been reduced to 8.3 MB. Bu there
>> are still some files which are not required and I am unaware of how to
>> prvent these files from being included in my file system using
>> openwrt.
>>
>> For Ex: there are multiple binaries in /lib/firmware which are not
>> required. This folder itself contains size of 4.4 MB, apart from these
>> there are many libraries in /lib as well as /usr/lib which are not
>> required.
>>
>> Can anyone please guide of how to remove firmware binaries and
>> libraries in openwrt.
>>
>> --
>> Thanks & Regards,
>> Arjav Parikh
>> _______________________________________________
>> openwrt-devel mailing list
>> openwrt-devel at lists.openwrt.org
>> https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>
>
>
>
> --
> Ronaldo Afonso
> 11 9 5252 0484
> www.ronaldoafonso.com.br



-- 
Thanks & Regards,
Arjav Parikh
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