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When using an initramfs, on the first-pass build, we create a dummy cpio so that the build succeeeds. The real cpio will come later, and we'll do a second-pass build to use the actual cpio. However, when we touch that dummy cpio, the images/ directory may not yet exist, since commitd0f4f95e39(Makefile: rework main directory creation logic) removed its creation at the begining of the build, to only at the moment we need it, i.e. during the *_INSTALL_IMAGES_CMDS steps. However, the linux build is not a _INSTALL_IMAGES_CMDS step, so there is no guarantee that images/ already exist at that time. Fix that by explicitly creating images/ before touching the dummy cpio. Reported-by: Matthew Weber <matthew.weber@rockwellcollins.com> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Matthew Weber <matthew.weber@rockwellcollins.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Reviewed-by: Matthew Weber <matthew.weber@rockwellcollins.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> (cherry picked from commit524fb10bbe) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches