aix tips

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今天在看书的时候看到的。感觉还行所以就和大家共享一下\r\nNote: The bootinfo -y command will identify the type of system hardware\r\nyou have, either 32-bit or 64-bit. If the command returns a 32, you cannot use\r\nthe 64-bit kernel.\r\n\r\nIf you want to enable the 64-bit kernel after system installation, you will need to\r\ninstruct the system to use the 64-bit kernel information stored in the /usr/lib/boot\r\ndirectory. There are three kernels available in the /usr/lib/boot directory:\r\nunix_up 32-bit kernel for uniprocessor systems\r\nunix_mp 32-bit kernel for multiprocessor systems\r\nunix_64 64-bit kernel for 64-bit processor systems\r\nThe following example provides the commands to run to enable the 64-bit kernel\r\nafter system installation:\r\n# ln -sf /usr/lib/boot/unix_64 /unix\r\n# ln -sf /usr/lib/boot/unix64 /usr/lib/boot/unix\r\n# bosboot -ad /dev/ipldevice\r\n# shutdown -r\r\nAfter the system has rebooted, it will be running the 64-bit kernel. To reactivate\r\nthe 32-bit kernel, follow the same procedure, substituting unix_up or unix_mp for\r\nunix_64, depending on your system type.