With Buildroot I'm making images for my Embedded Linux Hardware. Mainly I'm trying to speed up the boot sequence (and on the way lower the memory usage), where I've tried many techniques successfully.
What I'd like to do: Recently I've heared about removing duplicated files in a directory (by e.g. replacing those files with symbolic links) and I'd like to apply this method to my rootfs
The surroundings: With Buildroot I can have many different types of rootfs formats (cramfs, cpio, ext2/3/4, etc.), which are created during
make as 1 (packed) file (e.g.:
rootfs.cpio). Now I don't really know how to:
- open up the image
- remove duplicated files (well I know how to remove duplicated files in general)
- pack the rootfs again - so that I still can use it to flash and execute it on my hardware
Maybe it's not even possible at all. I believe at least when using static libraries, many files can be replaced.
Has somebody an idea?