| Installation |
| ============ |
| |
| |
| Checkout from git |
| ----------------- |
| |
| If you use the tarball, you can just skip that section. If you checked out the |
| kexec-tools from git repository, you have to build the Autoconf-generated |
| file yourself with running |
| |
| ./bootstrap |
| |
| You have to install "autoconf" for that. After that, you should have a file |
| called "configure" in the top-level directory of kexec-tools, and you can |
| continue with the next step. |
| |
| |
| General |
| ------- |
| |
| You should check first if your favourite Linux distribution doesn't offer a |
| package. If that package is recent enough, you should consider using that |
| package instead. |
| |
| However, if you want to install kexec-tools from sources |
| |
| (1) Run ./configure [--prefix=/usr/local] [options]... |
| e.g. |
| |
| ./configure --prefix=/usr/local |
| |
| For a full list of options run |
| |
| ./configure --help |
| |
| (2) Run make |
| |
| make |
| |
| (3) To install kexec-tools |
| After following the above instructions to build-kexec tools, run |
| |
| make install |
| |
| |
| Static compilation |
| ------------------ |
| |
| To compile kexec-tools statically (i.e., independent of libraries that are |
| present on the system), use |
| |
| LDFLAGS=-static ./configure <options> |
| |
| instead. |
| |
| |
| Cross compilation |
| ----------------- |
| |
| Because kexec is also used in the embedded world, cross-compilation is |
| supported. You cannot only set "CC", "LD", "CCFLAGS" and "LDFLAGS" environment |
| variables for the ./configure call as usual, you can also set |
| |
| TARGET_CC -- the C compiler used for files that should run on the |
| target |
| TARGET_CCFLAGS -- compilation flags for $TARGET_CC |
| TARGET_LD -- linker used for files that should run on the |
| target |
| |
| Because the build process also requires files that must be executed during the |
| build, you also need a host compiler, only the target compiler is not enough. |
| |
| BUILD_CC -- the C compiler used for files that should run on the |
| host (the system that builds the kexec-tools) |
| BUILD_CFLAGS -- compilation flags for $BUILD_CC |
| |