lilo panic=10 как загружать старое ядро?

man lilo.conf

fallback=<command-line>
              Specifies a string that is stored as the default command line if the current image is booted. This is useful when exper-
              imenting with kernels which may crash before allowing interaction with the system. If using  the  fallback  option,  the
              next reboot (e.g.  triggered by a manual reset or by a watchdog timer) will load a different (supposedly stable) kernel.
              The command line stored by the fallback mechanism is cleared by removing or changing the default command line  with  the
              -R option, which should be a part of the boot startup scripts.