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How To Change A 64 Bit Kernel To 32 Bit Kernel?

Answer»
  1. Modify the /usr/lib/boot/unix directory and the /unix directory to be a symbolic link to the binary for the desired KERNEL.
  2. Run the bosboot command to write a new system boot image.
  3. Reboot the system.

The PATH name of the 64-bit kernel is /usr/lib/boot/unix_64, and the path name of the MULTIPROCESSOR VERSIONS of the 32-bit kernel is

/usr/lib/boot/unix_mp.
# ln -sf /usr/lib/boot/unix_mp /unix
# ln -sf /usr/lib/boot/unix_mp /usr/lib/boot/unix
# lslv -m hd5
# bosboot -AD /dev/ipldevice
# shutdown -Fr
# bootinfo -K (should now be 32)

The path name of the 64-bit kernel is /usr/lib/boot/unix_64, and the path name of the multiprocessor versions of the 32-bit kernel is

/usr/lib/boot/unix_mp.
# ln -sf /usr/lib/boot/unix_mp /unix
# ln -sf /usr/lib/boot/unix_mp /usr/lib/boot/unix
# lslv -m hd5
# bosboot -ad /dev/ipldevice
# shutdown -Fr
# bootinfo -K (should now be 32)


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