FreeBSD booting with different kernel

If you upgrade or recompile FreeBSD kernel and it won’t boot up properly, you need to boot with old kernel and do the recompiling again.

To boot with previous version of kernel, reboot the server, select option 6 “Boot Loader” from the menu. In the promot try

unload
boot kernel.prev

or

boot kernel.GENERIC
boot kernel.old

To see list of available kernels, use “ls boot“.


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