uImage. This is an image format designed for U-Boot loader, generally consisting of a kernel with a header for information. Often a zImage with a 64 byte uImage header, which contains the load address & entry point of the zImage, so that uBoot knows what to do with it.
I hoped OpenWrt will use initramfs and then will overlay with with "rootfs_data". Unfortunately it didn't happen, I think "rootfs_data" was ignored by OpenWrt. [ 2.386053] 5 bcm47xxpart partitions found on MTD device spi32766.0 [ 2.397457] 0x000000000000-0x000000040000 : "boot" [ 2.404071] 0x000000040000-0x000000ff0000 : "firmware"
openwrt-15.05-rc3-ramips-rt305x-dir-320-b1-initramfs-uImage.bin ... As the name implies, the image contains (besides the kernel) the squashfs filesystem.
09.12.2021 · Preinit and Root Mount and Firstboot Scripts FIXME Information may be outdated and obsolete information as of April, 2018; Overview, Preinit and Overview, Failsafe updated from April 2018 based on reading master code. See Rootfs on External Storage for information on external rootfs mounting.
13.08.2017 · inifamrs-kernal. Ciao! How are you right now? So, continuing, like lede-17.01.2-ramips-mt7621-dir-860l-b1-initramfs-kernel.bin, what is it mean? can i use it and if so, what is the difference between lede-17.01.2-ramips-mt7621-dir-860l-b1-squashfs-factory.bin (which I know what it does and how) or lede-17.01.2-ramips-mt7621-dir-860l-b1-squashfs-sysupgrade.bin …