https://downloads.openwrt.org/releases/21.02.2/targets/x86/64/ Go here, choose the release version, then click on target and then on x86. You will see different targets. There are multiple targets for x86 OpenWrt, some are targeted at old or specific hardware and their build defaults may not be suit modern x86 hardware: 64 is for modern PC hardware (anything from around 2007 onward), it is built for 64-bit capable computers and has support for modern CPU features. Choose this unless you have good reasons not to. Generic is for 32-bit-only hardware (either old hardware or some Atom processors), should be i686 Linux architecture, will work on Pentium 4 and later. Use this only if your hardware can't run the 64-bit version. Legacy is for very old PC hardware, Pentium MMX, what is called i586 in Linux architecture support. It will miss a lot of features you want/need on modern hardware like multi-core support and support for more than 4GB of RAM, but will actually run on ancient hardware while other versions will not. Geode is a custom Legacy target customized for Geode SoCs, which are still in use in many (aging) networking devices, like the older Alix boards from PCEngines. Now you will see different files offered, the following two are disk images you can download and use: squashfs-combined.img.gz This disk image uses the traditional OpenWrt layout, a squashfs read-only root filesystem and a read-write partition where settings and packages you install are stored. Due to how this image is assembled, you will have only 230-ish MB of space to store additional packages and configuration, and extroot does not work. -> ext4-combined.img.gz This disk image uses a single read-write ext4 partition with no read-only squashfs root filesystem, which allows to enlarge the partition. Features like Failsafe Mode or Factory Reset won't be available as they need a read-only squashfs partition to function. It has both boot and root partitions and MBR area with updated GRUB2. ext4-rootfs.img.gz This is the equivalent partition image without boot partition, to be installed without overriding MBR. rootfs.tar.gz This contains all files from root partition. it can be extracted on root partition without the need of rewriting the partition. It's highly recommended to remove all script and compiled files before extracting, to avoid conflicts. Anja Juliette Laval