Page History
| Table of Contents |
|---|
Terminology
Buildroot is the tool that we use to build the kernel, kernel modules, user tools, and root file system for our Linux RT machines.
...
| Code Block | ||
|---|---|---|
| ||
egumtow@aird-b50-srv01 /scratch/egumtow> mkdir buildroot egumtow@aird-b50-srv01 /scratch/egumtow> cd buildroot egumtow@aird-b50-srv01 /scratch/egumtow/buildroot> mkdir buildroot-2019.08-2 egumtow@aird-b50-srv01 /scratch/egumtow/buildroot> cd buildroot-2019.08-2 egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> mkdir host egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> mkdir download egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> git clone https://github.com/slaclab/buildroot-site.git site-top egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> cd site-top egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/site-stop> git checkout origin/br-2019.08 egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/site-stop> cd .. egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> wget https://buildroot.org/downloads/buildroot-2019.08.tar.gz egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> tar xzvf buildroot-2019.08.tar.gz egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> mv buildroot-2019.08 buildroot-2019.08-2-x86_64 egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2> cd buildroot-2019.08-2-x86_64/ egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> ln -s ../site-top site egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> site/scripts/br-installconf.sh -a x86_64 egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> make egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> ls -l output/images total 58256 -rw-r--r-- 1 egumtow gu 3796944 Sep 19 16:36 bzImage -rw-r--r-- 1 egumtow gu 62914560 Sep 19 16:36 rootfs.ext2 -rw-r--r-- 1 egumtow gu 17510981 Sep 19 16:36 rootfs.ext2.gz drwxr-xr-x 2 egumtow gu 4096 Sep 19 16:34 syslinux/ |
...
| Code Block | ||
|---|---|---|
| ||
egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> make clean egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> cp output/build/busybox-1.31.0/.config site/config/bb-1.31.0.config egumtow@aird-b50-srv01 /scratch/egumtow/buildroot/buildroot-2019.08-2/buildroot-2019.08-2-x86_64> make |
SLAC properties
There is a SLAC-specific file in the file system skeleton (fs_skeleton). The file system skeleton exists in the site directory. The file is at /etc/SLAC_properties. The syntax is
| Code Block |
|---|
PROPERTY=value |
One property per line. This file can be read by human users or scripts to determine behavior. For example, if HAVE_ROOT_PASSWORD is set, then scripts know that if they use "su" then a password is required - the implication being "su" can't be used during the boot process when humans are not involved.
Buildroot documentation
Buildroot has ample documentation. Be careful that the version of the documentation matches the version your buildroot. The documentation that you should read comes with the download of buildroot at docs/manual/manual.text.
...
Overview
Content Tools