Heads up for bug 13393

If you don't use Automated Installer (AI) for the installation
or build x86 AI images using Distribution Constructor (DC),
you can delete this message.

With the integration of

Author: Jan Damborsky <jan.damborsky@sun.com>
Repository: /hg/caiman/slim_source
Latest revision: 194c6c516a71329ce4d9d7516fc924d93522764e
Total changesets: 1
Log message:
13393 min_mem64=1536 in AI GRUB menu should be revisited

Files:
 update: usr/src/cmd/distro_const/DC-manifest.defval.xml
 update: usr/src/cmd/distro_const/DC-manifest.rng
 update: usr/src/cmd/distro_const/auto_install/ai_x86_image.xml
 update: usr/src/cmd/distro_const/dc_defs.py
 update: usr/src/cmd/distro_const/utils/grub_setup.py
 update: usr/src/cmd/installadm/installadm-common.sh

x86 AI image now carries information about minimum amount of
physical memory required to boot AI client from network
in 64-bit mode (on 64-bit capable machines).
AI client with less than specified amount of memory is
booted in 32-bit mode.
This behavior applies only to installation, it does not affect
installed system.

It is possible to customize that value in DC x86 AI manifest:

<!--
    Specify a minimum amount of physical memory (in MB)
    which is required to boot automated installer from
    network in 64 bit mode (on 64 bit capable machines).
    If not specified, 1000 will be used as default
    value.
-->
<!--
    Uncomment before using
    <min_mem64>1000</min_mem64>
-->

It is commented out by default and 1000 (~1GB) is used
in that case. That information is passed via .image_info
file bundled in AI image.

In order to take advantage of this feature, it is necessary
to update Distribution Constructor (SUNWdistro-const package)
on build machine as well as installadm(1M) tools on AI server
(SUNWinstalladm-tools package).

installadm(1M) tools read that value from given AI image
(when install service or client are created)
and set 'min_mem64' option in AI GRUB menu accordingly.

New installadm(1M) tools continue to work with older
AI images (not containing that information). In that case,
min_mem64 is set to 1536 (1,5 GB).