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Set the SELinux file security contexts using setfiles when generating root filesystem images. Without such security contexts created at build time, they need to be setup at first boot by running the restorecon utility on the target. This has two drawbacks: - You have to special case the first boot, which cannot be done in enforcing mode, and will have to run restorecon, then reboot. - You cannot support read-only filesystems. By setting up the security contexts at build time, we can have a filesystem image that is immediately ready to boot an SELinux system in enforcing mode, including if the root filesystem is read-only. Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.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