Re: switch from full-system partition to lpar

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Date:         Thu, 24 Jun 2004 12:39:17 -0500
To: aix-l@Princeton.EDU

 When the system is in full system partition mode, the AIX console will
default to the port that it was installed on. typically the S1 serial
port.
When in full system partition mode, output of the session on the S1
serial port (usually, but not always /dev/tty0) is redirected to the
vterm session on the HMC,

  When a machine is booted to LPAR mode, a different device driver is
loaded on AIX to act as the vterm tty because one cannot count
on the S1 serial port being defined to the partition and the data path is
way different.

With that said, if you install AIX while in full system partition mode and
reboot that disk in lpar mode, the AIX console is still assigned to the
port you installed on, typically the S1 serial port.

From command line
 lsdev -Cc tty will list the ttys defined to the partition
     the tty with the location code of -00 or null location code will be
the tty defined to the virtual tty device driver
 lsparent -Cl ttyX should confim that the parent device is the vterm
device driver.

lscons - tells you what the current AIX console is

To change the console
 swcons /dev/ttyX - temporarily switches the console
 chcons /dev/ttyX - permanently switches the console across boots.

If you plan to use the disk in both modes (lpar/full system) , go ahead an
enable login on the S1 serial port and the vterm serial so you will get a
login
in either mode.
   chdev -l ttyX0 -a login=enable
   The console will onlt scroll to the tty returned in the lscons command.

Regards,
   Walter Lipp

Holger.VanKoll@SWISSCOM.COM
Sent by: IBM AIX Discussion List <aix-l@Princeton.EDU>
06/24/2004 08:59 AM
Please respond to IBM AIX Discussion List

        To: aix-l@Princeton.EDU
        cc:
        Subject: Re: switch from full-system partition to lpar

the hints that were given didnt help or change anything

after reading /usr/lpp/bos/README.PARTITION_INSTALL

I noticed that there are some problems taking a disk out of a system and
booting it to another
it does not have much to do with partitioning

currently, I think that aix asks me to define a console but I dont see
this question on the vterm

does anybody know how to reset the console-information?

 -----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of Holger.VanKoll@SWISSCOM.COM
Sent: Thursday, June 17, 2004 9:47 AM
To: aix-l@Princeton.EDU
Subject: [aix-l] switch from full-system partition to lpar

Hello,
I have a p650, 4cpu/8gb ram.
I bootet and installed it in full-system partition mode (rootvg mirrored
hdisk0+hdisk1), everything went fine.
Then I shut it down, powered in on in lpar mode and created a partition
with all resouces (minus those 768mb for hypervisor).
I activated this partition, bootet to sms and assigned the hdisks as
primary and secondary bootdevice.
While doing this I got
            .----------------------------------------------------.
            | A device conflict has been detected and resolved. |
            `----------------------------------------------------'
I continued, verified that hdisk0+hdisk1 are prim.+secondary bootdevice
>Current Boot Sequence
> 1. SCSI 146 GB Harddisk ( loc=Integ:U0.1-P2/Z2-A8,0 )
> 2. SCSI 146 GB Harddisk ( loc=U0.1-P2-I3/Z1-Aa,0 )
and bootet.
But the systems only gets this far:
                                Welcome to AIX.
                       boot image timestamp: 17:23 06/02
                 The current time and date: 14:34:22 06/17/2004
                number of processors: 4 size of memory: 7424Mb
boot device: /pci@400000000111/pci@2/scsi@1,1/sd@8,0
closing stdin and stdout...
-------------------------------------------------------------------------------

Nothing more happens.
Any ideas why? Or any idea what this "device conflict" is?
State of this LPAR is "running", no LED-value.
Regards,
Holger

• Previous message: David Zarnoch: "Re: sudo logging SOLVED"
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