OpenWRT firmware for routers
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Kevin Darbyshire-Bryant dfd8c45a98 build: image: posix compatibility cut v head
Replace 2 instances of non posix use of 'head' with posix compliant
'cut'.

'head -c n' cuts 'n' bytes from the passed string and happens to work on
Linux & Mac OS X even though '-c' is not posix.

'head --bytes n' does the same thing and happens to work on linux but
not on Mac OS X and is also not posix.

'cut -b1-8' cuts the first 8 bytes from the passed string and is posix
compliant, hence works on Linux & Mac OS X.

Our usage of 'head --bytes' was particularly unfortunate since it was
used to calculated the RootFS UUID passed to grub - the net result being
a non-functioning system waiting for the root file system to appear.

Thanks to karlp, ynezz & others for pointers on solving this.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
5 years ago
.github build: Update README & github help 6 years ago
config Revert "build: separate signing logic" 5 years ago
include build: image: posix compatibility cut v head 5 years ago
package base-files: add 'wifi reconf' 5 years ago
scripts scripts/dl_github_archive.py: fix python3 str, bytes confusion 5 years ago
target kernel: bump 4.19 to 4.19.82 5 years ago
toolchain toolchain: gcc: enable sanitizers for glibc toolchain 5 years ago
tools ath79: add support for the TP-LINK CPE220 V3 5 years ago
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 12 years ago
.gitignore gitignore: ignore patches in OpenWrt root directory 5 years ago
BSDmakefile add missing copyright header 17 years ago
Config.in merge: base: update base-files and basic config 7 years ago
LICENSE finally move buildroot-ng to trunk 8 years ago
Makefile build: add buildinfo as single Makefile target 5 years ago
README build: switch to Python 3 5 years ago
feeds.conf.default feeds: switch git.lede-project.org URLs to git.openwrt.org 6 years ago
rules.mk rules.mk: remove "$(STAGING_DIR)/include" 5 years ago

README

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------

This is the buildsystem for the OpenWrt Linux distribution.

To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.

You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.

1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default

2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/

3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.

4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.

Sunshine!
	Your OpenWrt Community
	http://www.openwrt.org