wrt (openwrt / lede) initramfs Do you know what `initramfs-kernel` mean? I know `squashfs-factory/squashfs-sysupgrade`. How can I do it or what is it? which is better? I just don't understand what the `initramfs-kernel` mean. I have `Linksys 1900ACS v2` and `D-Link DL-860l B1`, but I only use `squashfs-factory` and `squashfs-sysupgrade`. What does the `initramfs-kernel` mean? When would I use those? I would even fear to install that. So, continuing, like `lede-17.01.2-ramips-mt7621-dir-860l-b1-initramfs-kernel.bin`, what does this 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` (which I know what it does and how).

The `initramfs` OpenWRT/LEDE kernel builds are including the rootfs image into `initramfs`, attaching it to the kernel so it will put the filesystem in a ramdisk during bootup and utilize it as `/`. You don't need such builds if the regular flash-based storage works for you, as it won't allow any persistent configuration by default. Such a configuration is useful during initial OpenWRT/LEDE porting efforts when you don't have the flash driver configured to use the flash chip on the device.