Determines and displays various boot information, including boot device type and boot device name. This command is NOT a user-level command and is NOT supported in AIX Version 4.2 or later.
bootinfo [ -P Ppsize -s Disk ] | [ -b ] [ -B Disk ] [ -c ] [ -k ] [ -m ] [ -q Adapter ] [ -r ] [ -t ] [ -T ] [ -o Disk ] [ -z ]
The bootinfo command is used during the boot and BOS install to gather and display information. During boot it is used to determine the boot device type and which device the machine has booted from. During a network boot, the bootinfo command displays the contents of the client's bootpd daemon REPLY packet. This information is used by the boot programs to contact the server to obtain the client's file systems.
The bootinfo command uses the device configuration databases in information searches. For some information, the bootinfo command uses NVRAM (nonvolatile random access memory).
When booting a system across a network, use the -c flag to display the following information:
|4||Specifies 4 megabit-per-second token ring|
|5||Specifies 16 megabit-per-second Token Ring|
For MCA Ethernet:
|7||Specifies thin cable|
|8||Specifies thick cable|
All of the items except the hardware attribute value are part of the bootp daemon reply packet information. The bootinfo command determines the hardware attribute value by looking in NVRAM.
|-b||Returns the last boot device.|
|-B Disk||Displays a 1 if the IPL code in the ROS on the machine running the command is capable of booting from the specified disk. Otherwise, the command displays a 0.|
|-c||Displays bootp daemon reply packet information stored with IPL control block.|
|-k|| Specifies the key position. The return value indicates:
|-m||Displays the machine model code.|
|-o Disk||Displays either the disk device name or the location depending upon the value of disk.|
|-P Ppsize||Size of disk physical partitions to be used for calculating defaults.|
|-q Adapter||Displays a 1 if the IPL code in the ROS on the machine running the command is capable of booting via the specified adapter. Otherwise, this command displays a 0.|
|-r||Displays amount of real memory in kilobytes.|
|-s Disk||Displays disk size in megabytes.|
|-t|| Specifies the type of boot. The return values include:
|-T||Displays the hardware platform type of the running machine. Machines with fundamental differences, such as different types of busses, may have different hardware platform types. For more information see the bosboot command.|
|-z|| Specifies whether the machine hardware is MP-capable (capable of running the multi-processor kernel and supporting more than one processor). The return value indicates:
bootinfo -P 0 -s hdisk2
The bosboot command
Understanding the Boot Process in AIX Version 4.3 System Management Guide: Operating System and Devices.