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OpenWrt Source Repository
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Michał Kępień 27acf2413e
yafut: add a kernel update tool for MikroTik NAND 
Commit 9d96b6fb72 ("ath79/mikrotik: disable building NAND images")
disabled building images for MikroTik devices with NAND flash due to a
less than satisfactory method used for updating the kernel on those
devices back then.

To address the problem, add support for updating the kernel on MikroTik
devices with NAND flash using a new tool, Yafut, which enables copying
files from/to Yaffs file systems even if the kernel does not have native
support for the Yaffs file system compiled in.  Instead of erasing the
entire NAND partition holding the kernel during every system upgrade
(which is what the previously-used approach employing kernel2minor
involved), Yafut preserves the Yaffs filesystem present on that
partition and only replaces the kernel executable.  This allows bad
block information to be preserved across sysupgrade runs and also
enables wear leveling on the NAND partition holding the kernel.  Yafut
does not rely on kernel2minor in any way and intends to eventually
supersede the latter for NAND devices.

Signed-off-by: Michał Kępień <openwrt@kempniu.pl>
2023-04-18 13:53:04 +02:00
.github CI: build: disable cache of external toolchain/sdk 2023-03-22 01:07:57 +01:00
config build: add a config knob to enable LTO for all packages 2023-03-21 18:28:24 +01:00
include Revert "image: update LZMA_XZ_OPTIONS with new squashfs4 tool" 2023-04-12 12:25:18 +02:00
LICENSES
package yafut: add a kernel update tool for MikroTik NAND 2023-04-18 13:53:04 +02:00
scripts scripts: sercomm-pid: add bmips support 2023-04-09 10:01:03 +02:00
target kernel: backport MEMREAD ioctl 2023-04-18 13:53:03 +02:00
toolchain toolchain/gcc: enable zstd support 2023-03-17 02:08:25 +01:00
tools firmware-utils: update to latest HEAD 2023-04-18 00:10:46 +02:00
.gitattributes
.gitignore
BSDmakefile
Config.in build: scripts/config - update to kconfig-v5.14 2022-02-19 13:10:01 +01:00
COPYING
feeds.conf.default feeds: use git-src-full to allow Git versioning 2022-02-15 00:24:24 +01:00
Makefile treewide: derive host and hostpkg path from STAGING_DIR 2023-01-09 21:33:20 +01:00
README.md README: add download section 2022-10-06 16:08:24 +02:00
rules.mk rules.mk: add FILECMD variable 2023-03-27 00:41:50 +02:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Download

Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

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

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.6+ rsync subversion unzip which

Quickstart

  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 GNU/Linux kernel & all chosen applications for your target system.

Related Repositories

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

  • LuCI Web Interface: Modern and modular interface to control the device via a web browser.

  • OpenWrt Packages: Community repository of ported packages.

  • OpenWrt Routing: Packages specifically focused on (mesh) routing.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0