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List:       opensolaris-install-discuss
Subject:    [install-discuss] Heads Up : Automated Installer Wipe Disk and
From:       Matt Keenan <matt.keenan () oracle ! com>
Date:       2011-07-21 13:18:45
Message-ID: 4E282735.5020109 () oracle ! com
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If you don't use Automated Installer (AI), then you can ignore the rest 
of this email.

With push of :
     changeset:   1303:97cab8039183
     user:        Matt Keenan <matt.keenan@oracle.com>
     date:        Wed Jul 20 10:40:24 2011 +0100

     description:
	7057944 CUD/AI needs a way to be able to wipe existing layout
         on disk before applying a new layout.

     modified:
        usr/src/cmd/auto-install/checkpoints/target_selection.py
        usr/src/cmd/auto-install/test/test_target_selection_sparc.py
        usr/src/cmd/auto-install/test/test_target_selection_x86.py


The interpretation of Disk keyword attribute "whole_disk" has changed. 
This change provides the functionality to wipe a disk and give it a 
custom layout, ignoring the current contents of the disk.

Prior to this change if a Disk had "whole_disk" set to true it could not 
contain any partition/slice children. If the disk was assigned to the 
root pool, the disk was wiped and a default layout was applied to the 
disk, if assigned to a datapool, then the whole disk name is used as the 
device when creating the datapool, again effectively wiping the contents.

With this integration, if "whole_disk" is set to true and the Disk 
specification contains Partition/Slice children, the disk will be wiped 
and the layout of the disk will be what's specified in the manifest.

If "whole_disk" is set to False, the functionality has not changed, in 
that AI will attempt to merge what currently exists on the disk with the 
Partition(s)/Slice(s) specified in the manifest.

cheers

Matt
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