= Mac Mini =

= Boot Installation Process =

# Boot with OS X installation CD. Don't forget to press `"c"` key to boot from CD.

# On initial screen go to the top bar and choose ''"HDD Tools"''

# Choose the current HD and select ''"Partition"'' tab

# Select ''"1 Partition"'', system type Unix

# '''IMPORTANT:''' Click in ''"options"'' and select ''boot from MBR'' in order to allow CentOS boots on Mac Mini.

# Save and reboot

# Press `"F12"` to eject the OS X CD and insert CentOS DVD

# Reboot

# Press `"c"` to boot from DVD

# Do the installation following instructions on screen

# When the installation finish, just click on reboot button.

# Press `"F12"` to eject CentOS DVD to avoid boot again on installation DVD

=== Boot from USB/PXE ===

In order to boot using USB drive or PXE is necessary to boot up using an EFI.

=== DHCP configuration to let the Macmini boot from Linux using [[NetBoot]] ===

<pre><nowiki>

ddns-update-style none;

ddns-updates off;

ignore client-updates;

allow booting;

authoritative;

class "AppleNBI-i386" {

match if substring (option vendor-class-identifier, 0, 14) = "AAPLBSDPC/i386";

option dhcp-parameter-request-list 1,3,17,43,60;

if (option dhcp-message-type = 1) { option vendor-class-identifier "AAPLBSDPC/i386"; }

if (option dhcp-message-type = 1) { option vendor-encapsulated-options 08:04:81:00:00:67; }

# The Apple Boot Loader binary image. This file will in turn TFTP the kernel image and extension cache.

filename "macnbi-i386/booter";

## JJM Root FS DMG on HTTP Server:

# option root-path "http://172.10.0.1/Netboot/NetBootSP0/MacOSX10.4.5.i386.JJM.nbi/NetInstall-Restore.dmg";

## JJm Root FS DMG on NFS Server.

# (Note the placement of the second ":" This indicates where /var/netboot is mounted on each client.

# The Resources folder should be in the folder indicated by the :, /nbi in this instance.

## NOTE: THIS ROOT PATH IS TOO LONG AND WILL NOT WORK.

# option root-path "nfs:172.10.0.1:/disk/0/Netboot/NetBootSP0:MacOSX10.4.5.i386.JJM.nbi/NetInstall-Restore.dmg";

## NOTE: Try to keep the root path as short as possible. I copy the DMG files to /nbi and export that folder.

#option root-path "nfs:172.10.0.1:/nbi:NBI-i386.dmg";

## bashlinux path

option root-path "nfs:172.10.0.1:/nbi:mac-linux.dmg";

}

subnet 172.10.0.0 netmask 255.255.255.0 {

pool {

range 172.10.0.100 172.10.0.199;

}

default-lease-time 7200; # 2 hours

max-lease-time 86400; # 1 day

option domain-name "sub.bashlinux.com";

option routers 172.10.0.1;

option subnet-mask 255.255.255.0;

option domain-name-servers 172.10.0.1;

option broadcast-address 172.10.0.255;

option time-offset -18000; # EST

allow unknown-clients;

</nowiki></pre>

= Boot =

Linux boot process in an Intel Macmini is a bit tricky

=== CentOS ===

The `gptsync` tool provided by `refit` packege must be enough in order to boot Linux on an Intel Macmini.

=== Debian ===

# Ensure that partition with `boot` has the boot flag set.

<pre><nowiki>

fdisk /dev/sda

</nowiki></pre>

# Install needed packages

<pre><nowiki>

apt-get install gptsync grub-pc

</nowiki></pre>

# Install grub in MBR

<pre><nowiki>

gptsync

grub-install /dev/sda

update-grub

</nowiki></pre>

= Graphic driver =

The default driver installed by CentOS is `"Intel"`, the kickstart scripts change intel to `"i810"`, this will avoid a "Virtual Big Screen" displayed by Intel driver

=== Graphical environment at boot ===

Some screens doesn't work at installation time, so it could be useful to add the resolution parameter as kernel parameter on grub as:

<code><nowiki> kernel vmlinuz vga=792 </nowiki></code>

It will provides a 1024x768 framebuffer.

= Sound =

The sound works fine in the audio output but no the internal audio.

= SMC =

Apple SMC controls fan speed based on temperature sensors.

=== CentOS ===

Build the module in a fresh kernel.

=== Debian ===

# Load the proper modules

<pre><nowiki>

modprobe msr

modprobe applesmc

modprobe coretemp

</nowiki></pre>

# Add the needed modules to `/etc/modules`

<pre><nowiki>

msr

applesmc

coretmp

</nowiki></pre>

# Install the needed packages

<pre><nowiki>

apt-get install lm-sensors

</nowiki></pre>

# Install scripts from

= Installing Windows XP =

Additional steps are required in order to install Windows XP on Mac Mini, it requires the following install discs:

* Windows XP Service Pack 2

* Mac OS X 10.5.x

Then, start the procedure as follow.

# Burn "Windows XP Service Pack 2" image available on eng_share into a CD

# Put the burned CD in Mac Mini tray

# Turn on Mac Mini

# Immediately after hear the chime, press and hold the letter `"c"`

# Press any key when it prompts to do in order to start installation from CD

# Follow all on screen instructions

# When installation is done, put the Mac OS X installation CD on tray, it will start automatically to install all the rest Mac Mini drivers.