AIX system 32-bit and 64-bit switching

Source: Internet
Author: User
Bootinfo-y number of processor digits
Number of bootinfo-k kernel digits
1, how to Switch AIX5.1 from 32-bit to 64-bit:
Ln-sf/usr/lib/boot/unix_64/unix
Ln-sf/usr/lib/boot/unix_64/usr/lib/boot/unix
Lslv-m HD5
Bosboot-ad/dev/ipldevice
Shutdown-fr
2, how to Switch AIX5.1 from 64-bit to 32-bit:
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
Determine if the system has loaded 64-bit kernel extensions, using the command:
# Genkex |grep 64
If the system loads a 64-bit kernel extension, it returns information similar to the next line:
149bf58 A3ec/usr/lib/drivers/syscalls64.ext

AIX Version 5
(C) Copyrights by IBM and by others 1982, 2002.
Login:root
Root ' s Password:
******************************************************************************
*                                                                            *
*                                                                            *
* Welcome to AIX Version 5.2! *
*                                                                            *
*                                                                            *
* Please note the README file In/usr/lpp/bos for information pertinent to *
* This release of the AIX operating System. *
*                                                                            *
*                                                                            *
******************************************************************************
Last unsuccessful Login: ad March 14, 2004 Sunday 11:36 43 seconds on
/DEV/PTS/1 from 192.168.2.201
Last Login: A.D. March 15, 2004 Monday 05:18 57 sec On/dev/pts/2 from
192.168.2.99
# prtconf
System Model: IBM,7025-6F1
Machine Serial Number: 101A00F
Processor type: POWERPC_RS64-III
Number of processors: 2
Processor clock speed: 451 MHz
CPU Type: 64-bit
Kernel type: 32-bit
LPAR Info:-1 NULL
Memory Size: 1024 MB
Good memory size: 1024 MB
Firmware version: ibm,m2p01113
Console Login: Enable
Automatic reboot: True
Full Core: false
Network Information
Host Name: Snec
IP Address: 192.168.18.102
Subnet Mask: 255.255.255.0
Gateway: 192.168.18.254
Name server: 192.168.18.102
Domain Name: snec.com
Paging Space information
Total paging space: 512MB
Percent used: 1%
Volume Group Information
==============================================================================
DATAVG:
Pv_name PV State Total PPS free PPS
Free distribution
Hdisk1 Active 271 143
55..00..00..34..54
==============================================================================
Rootvg:
Pv_name PV State Total PPS free PPS
Free distribution
Hdisk0 Active 542 445
108..100..20..108..109
==============================================================================
Installed RESOURCE LIST
The following are installed on the machine.
-+-= Added or deleted from Resource List.
* = Diagnostic support not available.
Model ARCHITECTURE:CHRP
Model implementation:multiple Processor, PCI bus
+ SYS0 System objects
+ sysplanar0 System plane
* PCI1 P1 PCI bus
* Pci6 P1 PCI bus
+ ent0 p1/e1 IBM 10/100 Mbps Ethernet PCI
Adapters (23100020)
* Pci7 P1 PCI bus
* Pci8 P1 PCI bus
* Pci9 P1 PCI bus
+ MG20 P1-I6/G1 gxt130p Graphics Adapter
* PCI10 P1 PCI bus
* PCI11 P1 PCI bus
* PCI12 P1 PCI bus
* PCI13 P1 PCI bus
+ ent1 p1-i9/e1 IBM 10/100 Mbps Ethernet PCI
Adapters (23100020)
* Pci0 P1 PCI bus
* ISA0 P1 ISA Bus
+ fda0 P1/D1 Standard I/O floppy Adapter
+ fd0 P1-d1 Floppy drive
# bootinfo-k
32
# bootinfo-y
64
# DF
File system 512 blocks can be installed in%used iused%iused
/DEV/HD4 131072 104352 21% 1419 5%/
/DEV/HD2 10747904 8846808 18% 23908 2%/usr
/dev/hd9var 131072 116200 12% 416 3%
/DEV/HD3 131072 126840 4% 1%/tmp
/DEV/HD1 131072 126808 4% 1%/home
/proc----//proc
/dev/hd10opt 131072 111976 15% 356 3%
# Ln-sf/usr/lib/boot/unix_64/unix
# Ln-sf/usr/lib/boot/unix_64/usr/lib/boot/unix
# lslv-m HD5
hd5:n/a
LP PP1 PV1 PP2 PV2 PP3 PV3
0001 0001 hdisk0
# Bosboot-ad/dev/ipldevice
Bosboot: The boot image is 18,212 512-byte blocks.
# SHUTDOWN-FR
Shutdown program
Ad March 15, 2004 Monday 05:49 39 seconds
Wait for ' reboot ... ' before stopping.
Error reporting has been stopped.

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