From: Holger.VanKoll@SWISSCOM.COM
Date: Wed Apr 07 2004 - 12:32:30 EDT
ipldevice is a link to the rawdevice (rhdisk0 , not hdisk0)
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Robert Miller
Sent: Wednesday, April 07, 2004 6:13 PM
To: aix-l@Princeton.EDU
Subject: Re: 64 Bit Kernel
It may be one of those odd IBMisms where they want to call something a
certain name so they put it in as a link to the actual critter...
Looking on my box, the /dev/ipldevice has the same device major and
minor numbers as hdisk0 - tho it is interesting that ipldevice is a
character device, where a drive is usually a block device:
mybox:rmiller$ ls -l /dev/ipl*
crw------- 2 root system 23, 0 Jan 15 2002 /dev/ipldevice
mybox:rmiller$ ls -l /dev/hdisk0
brw------- 1 root system 23, 0 Sep 13 2002 /dev/hdisk0
--rm
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
Darryl Ousterhout
Sent: Wednesday, April 07, 2004 9:06 AM
To: aix-l@Princeton.EDU
Subject: 64 Bit Kernel
We'll be changing to a 64-bit kernel for Oracle 9.2 soon. I recieved
some instructions from IBM and was just wondering about the 'ipldevice'
after the bosboot command. Does anyone know what this does? I'm used to
setting the boot image to a hdisk.
Here are the instructions:
To truly change the kernel to 64-bit, you need to be at the 5.1 or 5.2
oslevel.
>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
Regards,
-Darryl
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