I have created an image with buildroot for raspberry pi 2 and i have included "Opkg" in it. I then manually downloaded "gcc_4.8.3-1_brcm2708.ipk" for it and moved this file into the SD card and logged in to the pi, but now when i run the command "opkg install gcc_4.8.3-1_brcm2708.ipk" , i get the following error:
* open_outer: Failed to open package 'gcc_4.8.3-1_brcm2708.ipk': Unrecognized archive format
* pkg_extract_control_file_to_stream: Failed to extract control.tar.gz from package 'gcc_4.8.3.
* pkg_init_from_file: Failed to extract control file from gcc_4.8.3-1_brcm2708.ipk.
Is there a problem with the package or the image or it is something else? Thanks in advance.
Read the documentation of the project, especially http://buildroot.org/downloads/manual/manual.html#faq-no-binary-packages, which tells you that Buildroot does not support generating binary packages.
Plus, you cannot take some random .ipk found on the Internet, and expect it to work on a random Buildroot generated system. How can you be sure it's generated for the right architecture, with the same C library, the same ABI, etc.