it is probably maxcpus=4 in u-boot config -- 5.7+ kernels dont use that config anymore. change in extlinux, if that works change your /etc/default/u-boot ref.
there are several other changes in the installer for 5.7+. see my fork on git for details.
you should also install the hwaccel kernel first if you are installing any other hwaccel packages.
there are several other changes in the installer for 5.7+. see my fork on git for details.
you should also install the hwaccel kernel first if you are installing any other hwaccel packages.