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The current documentation for using OpenWRT on Mellanox Spectrum switches (https://openwrt.org/toh/mellanox/spectrum) suggests reflashing the entire harddrive from the recovery USB. This is not the most friendly way to install a new OS on these switches. From factory, they come with ONIE (Open Network Install Environment), which is a linux-based preboot environment for fetching an OS image from the network and installing it on disk. The installer is a self-executing bash script that executes inside the ONIE environment. The installer is expected to preserve the ONIE partition for use as recovery environement. To be a better citizen on these platforms, it would be preferrable to provide OpenWRT as an ONIE-compatible installer. This PR adds an ONIE_INSTALLER_IMAGES build option that produces an ONIE compatible .bin. The generated .bin follows the ONIE demo installer pattern [1]: it creates a new GPT partition labelled OPENWRT-ROOT on the ONIE install device, formats ext4, extracts the OpenWrt rootfs and kernel into it, installs GRUB into the existing UEFI ESP under bootloader-id "OpenWrt", and adds a NVRAM boot entry via efibootmgr. ONIE-BOOT is preserved so ONIE rescue remains available. Tested with the config at [2] on a Mellanox Spectrum SN3800 to produce a booting OpenWRT install. [1] https://github.com/opencomputeproject/onie/demo/installer/grub-arch/install.sh [2] https://gist.github.com/Keno/abc8c5b72645e73fadd1ff0d9616b23d Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> Signed-off-by: Keno Fischer <keno@juliahub.com> Link: https://github.com/openwrt/openwrt/pull/23062 Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com> |
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| include | ||
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| package | ||
| scripts | ||
| target | ||
| toolchain | ||
| tools | ||
| .gitattributes | ||
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| BSDmakefile | ||
| Config.in | ||
| COPYING | ||
| feeds.conf.default | ||
| Makefile | ||
| README.md | ||
| rules.mk | ||
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 macOS 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 python3.7+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo 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
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0