Module Name: src Committed By: brook Date: Sun Aug 21 15:01:08 UTC 2022
Modified Files: src: BUILDING src/etc/etc.evbarm: Makefile.inc src/share/man/man7: release.7 Log Message: Create bootable images in ${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/gzimg. Release builds for arm platforms create compressed images in ${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/gzimg. However, in some cases, e.g., armv7.img.gz, they are not bootable. Consequently, boot blocks must be manually installed in the images, which is an extra barrier for testing systems or adopting NetBSD. This has prompted creation of external repositories, e.g., armbsd.org, to host a collection of bootable images. However, this does not ease the burden on developers compiling their own systems; for them, manual installation of boot blocks is still required. For arm platforms, etc/etc.evbarm/Makefile.inc contains the commands used to create system images. Because installboot(8) can write boot blocks directly to system images, a loop through possible boards can create a series of bootable images during the normal build process. In the case of many arm platforms, installboot(8) uses U-Boot boot blocks, which are not part of the NetBSD source code. Developers can, however, install as many U-Boot boot blocks as desired, either in the default location of /usr/pkg/share/u-boot or in a set of directories pointed to by the U-Boot search path, the INSTALLBOOT_UBOOT_PATHS environment variable. For each board with an available boot block, a board-specific bootable image will be created in ${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/gzimg. If a boot block is not available, which is the typical situation currently, no additional image will be created. This facility creates opportunities to build bootable images for any number of boards within the scope of a standard release build. However, that is not required and will not occur without the intervention of installing U-Boot boot blocks prior to the build. To generate a diff of this commit: cvs rdiff -u -r1.143 -r1.144 src/BUILDING cvs rdiff -u -r1.126 -r1.127 src/etc/etc.evbarm/Makefile.inc cvs rdiff -u -r1.39 -r1.40 src/share/man/man7/release.7 Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.