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Converting from a 32-bit kernel to 64-bit kernel

  • 1.  Converting from a 32-bit kernel to 64-bit kernel

    Posted Thu September 18, 2008 02:59 PM

    Originally posted by: SystemAdmin


    We are migrating several 5200-07 systems to 5300-07-03-0811. They are currently running a 32-bit kernel. We are performing the migration through NIM as an alternate disk migration. Is there any way to change from a 32-bit kernel to a 64-bit kernel on the alternate disk so that when I boot off of the alternate disk it comes up with the 64-bit kernel?
    #AIX-Forum


  • 2.  Re: Converting from a 32-bit kernel to 64-bit kernel

    Posted Fri September 19, 2008 01:52 PM

    Originally posted by: SystemAdmin


    To switch from 32-bit mode to 64-bit mode run the following commands, in the given order:
    ln -sf /usr/lib/boot/unix_64 /unix
    ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix
    bosboot -ad /dev/ipldevice
    shutdown -Fr
    bootinfo -K (should now show 64)
    #AIX-Forum


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