I'm using buildroot to generate my images and for sure there is the option of compression with the help of different methods (LZO, LZMA, gzip, ...).
So far i found these 3 compression options in buildroot (v. 2013.11):
Kernel compression Mode (in make linux-menuconfig)
Built-in initramfs compression mode (in make linux-menuconfig)
Compression method for the .cpio root file system ( (in make menuconfig)
my questions are:
- what is the difference of these modes and
- why am I forced to chose between 3 methods for the kernel compression, instead of leaving it uncompressed ?