Failed installation on Linksys WRT1900ACv1

[hnyman]

For wrt1900ac v1 mamba (and wrt32x) it is also about the kernel size, not only about the DSA config change.

To overcome the kernel partition size change, you need to use the factory image, and force flash it.

OpenWrt 21.02.0 - First Stable Release

Like the error message says, you need to use the "factory image" instead of the sysupgrade image. You should be able to flash it by selecting the "force upgrade" there. And unselect the "keep settings". The underlying reason is explained in that error message that you see: Linksys had defined too small partition for the new kernel versions (used in 21.02 and master) for WRT1900ACv1 (mamba) and WRT32X (venom). So, the kernel partition has been enlarged for those two, but that prevents using t…