I am using buildroot 2016.02 and building for the Raspberry Pi 2. After I boot the system I have very little free space on /.

How can I specify that I want the rootfs size to be a specific size like 1 GB?

If this is not possible, does anyone know which part of the build process generates the rootfs.ext4 file so that I could modify it?


I found the options under "Filesystem Images" in make menuconfig. I used "extra size in blocks" and it did what I was expecting.


Add this line in your defconfig to set 120 MB size, or you can manually change in "make menuconfig" after firing "make foo_defconfig", and before firing "make".

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