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Stargate's FAQ   [  Topics  | Groups  | Last  | Expand  | Search  | Print  | Documentation ]
Folder open  Apple Mac-mini [ Expand ]
  Question ?  How can I control the FAN on my mac mini ?   
  Question ?  How can I get rid of the GPT signature on a harddrive of the mac-mini ?   
  Question ?  Are there any general infos about the Mac mini available ?   
  Question ?  I can't hear any sound through my microphone connected to line in   
  Question ?  Is it possible to run linux without mac-os X on a mac-mini ?   
  Question ?  How can I tell the kernel which sound board to load ?   
  Question ?  Are there benchmarks on the mac-mini regarding different specs ?   
  Question ?  What startup keys / Boot options to exist on the mac mini ?   
  Question ?  Is there a listing of the beep codes for the mini ?   
  Question ?  How to Disable/Enable Spotlight under Mac OS-X ?   
  Question ?  Mac Mini 4,1 builtin bluetooth receiver and Logitech MX5500 MX Revolution   
  Question ?  How can I migrate my iTunes playlists to Amarok ?   
  Question ?  How to get KUbuntu onto a macmin 2,1   
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Folder open  Answers
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Question ? How can I control the FAN on my mac mini ?   [
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 So - why should I do something to have a different FAN control on my system ?
Well - quite simple. Under heavy load - my system does not seem to increase the FAN speed - even when the CPU Core's are at 75C, the FAN Speed is at about 2500RPM. I can manually tell the system to increase this - but I want it to be done automatically.
For this - I have written a little script - that can be run as daemon applesmc.sh. Check the attached file section.

What you need is a newer kernel supporting the applesmc kernel module. To be sure this module gets loaded at boot time - enter it into the /etc/modules file - this in a Kubuntu 7.04 system as example. For my mac mini - here are the modules I load at boot:

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
msr
applesmc

Once this module loaded - use the macmini-fan and applesmc daemon scripts to set it up on boot. See the setup below:

sudo cp applemsc.sh /usr/bin
sudo cp macmini-fan.sh /etc/init.d/macmini-fan
sudo chmod +x /etc/init.d/macmini-fan /usr/bin/applemsc.sh
sudo update-rc.d macmini-fan defaults
sudo /etc/init.d/macmini-fan start

To check the FAN Status - call that script with the status parameter:

applesmc.sh -s

WARNING: The programs come as they are. They may brake your machine if not used correctly and I will take no responsibility for anything that happens to your computer, environment or whatever burns down !
Always use applesmc.sh daemon script to shutdown itself invoking

applesmc.sh -k

The macmini-fan script does this already on shutdown.
The reason is very simple. When beeing active - this daemon disables the automatic fan control of the system - and takes over the monitoring (by default) by polling every 10seconds what the CORE temperatures look like. If you kill the daemon - it will try to catch the kill signal and issue a command to reset the FAN control to automatic - however this is not always possible...

You have been warned ! When the daemon has started correctly - you see some stuff like this in your syslog (syslog logging is enabled by default. Havn't tried it without).

Sep 14 16:27:26 firebird applesmc: Version: 1.13 $ initialisation succeeded
Sep 14 16:27:26 firebird applesmc: Mode: manual - CPU 52C, FAN @ 2000RPM
Sep 14 16:30:06 firebird applesmc: CPU 57C, FAN @ 2000RPM > 2500RPM
Sep 14 16:31:26 firebird applesmc: CPU 52C, FAN @ 2500RPM > 2000RPM
Sep 14 16:32:36 firebird applesmc: CPU 66C, FAN @ 2000RPM > 2500RPM
...

Check the 2nd line stating Mode change to manual. When stopped - this has to change to auto !
Note the daemon will only log changes that would invoque a RPM change higher than a specified level (default is 500RPM).

A Daemon shutdown would look like this in syslog:

Sep 14 16:20:50 firebird applesmc[27266]: Daemon shutdown requested
Sep 14 16:20:50 firebird applesmc[27266]: Killed process 27002
Sep 14 16:20:50 firebird applesmc[27266]: Mode: auto - CPU 54C, FAN @ 2000RPM

while the console output would look like this:

# ./applesmc.sh -k
> applesmc Daemon shutdown requested
> applesmc Killed process 20139
> applesmc Mode: auto - CPU 51C, FAN @ 2000RPM

 

Entered by smurphy on Thursday, 13 September 2007 @ 23:27:23  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 69314
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Question ? How can I get rid of the GPT signature on a harddrive of the mac-mini ?   [
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 I have decided to give it a try after reading this.
Just make sure you install parted - and issue the command parted. Do the following - if we assume the disk is sda:

parted /dev/sda
mklabel msdos

This will get rid of the GPT signature on the disk, and you can use a standard fdisk/cfdisk program to set up your paritions.

WARNING: Using the mklabel command with parted will erase all partition informations of your harddisk - and you will need to repartition it. If you are smart - you first take a look at the partition using fdisk - change the units - to have the display in sectors, After the parted operation - you can restore the partition informations with fdisk again.

#sudo fdisk /dev/sda
Command (m for help): u
Changing display/entry units to sectors

Command (m for help): p

Disk /dev/sda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders, total 117210240 sectors
Units = sectors of 1 * 512 = 512 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *          63    40965749    20482843+   7  HPFS/NTFS
/dev/sda2        40965750    60500789     9767520   83  Linux
/dev/sda3        60500790    64709819     2104515   82  Linux swap / Solaris
/dev/sda4        64709820   117210239    26250210   83  Linux

 

Entered by smurphy on Tuesday, 21 August 2007 @ 23:55:14  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 69064

Next  Is it possible to run linux without mac-os X on a mac-mini ? 
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Question ? Are there any general infos about the Mac mini available ?   [
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 Why write my own if an excelent reference exists in the Mac Mini Wiki.

Some other sites are listed here:

 

Entered by smurphy on Wednesday, 29 August 2007 @ 22:43:37  
Authentication problems - Apple Mac-mini, # Hits: 69026
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Question ? I can't hear any sound through my microphone connected to line in   [
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 It's because it really is an AUDIO IN PORT, not a low voltage MICROPHONE PORT!

It requires 1 V pp line level voltages, and you bought an off the shelf dynamic microphone that only puts out a few millivolts.

You'll need something that brings the microphone levels up to line level. You could use an old cassette deck with MIC IN and HEADPHONE OUT in a pinch, or use a dedicated MIC amp that bumps up the signal level.

Old Macs like the LC III and such did use a basic MIC INPUT port, but later Macs switched to LINE INPUT so they'd work with signals coming from stereo systems, etc. Apple made a LINE LEVEL MIC with an extra long tip that gets power off an extra contact point in Mac models even as recent as a G4 tower .

The real question is, did Apple keep backward support for this microphone? If so, is it possible to find one? However, you'd lose your advantages of a headset microphone...

The best solution so far is the iMic which provides all required interfaces to plug in a standard headset. Details about the Linux support can be found here

Remember, the port is actually a STEREO INPUT port, so this may also mean you would need to use some STEREO to MONO adapters or find a software setting that will put one channel across both left and right as a MONO signal.  

Entered by smurphy on Thursday, 13 September 2007 @ 22:55:29  
Authentication problems - Apple Mac-mini, # Hits: 68937
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Question ? Is it possible to run linux without mac-os X on a mac-mini ?   [
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 It is indeed possible. As the EFI (replacement of the BIOS) of the mac mini seems to have a fallback for default partition tables in case no GPT partition table is found - you can just delete the GPT signature as described in the related FAQ - create a new partition and install linux as usual.
Kubuntu 7.04 runs very fine on my little machine here.

NOTE: As it is also possible to run windows XP on that Box - make sure you first create the Bootcamp Driver CD - before repartitioning the harddisk. The BootCamp Image requires MAC-OS X installed as only OS to create a DriverCD for Windows XP SP2 Prefessional.  

Entered by smurphy on Tuesday, 21 August 2007 @ 22:46:00  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 68699

Next  How can I get rid of the GPT signature on a harddrive of the mac-mini ? 
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Question ? How can I tell the kernel which sound board to load ?   [
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 Actually - all you need to tell the sound-driver is which board-layout to load. In the specific case of the mac-mini, edit the alsa configuration file in /etc/modprobe.d and add the following:

options snd-hda-intel model=macmini

This will tell alsa what in/out jacks you have. 

Entered by smurphy on Thursday, 13 September 2007 @ 23:39:55  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 68448
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Question ? Are there benchmarks on the mac-mini regarding different specs ?   [
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 Check out the following 2 Links:
From the Lab: Core 2 Duo Mac mini tests
Mac mini Performance (August 2007)

Note that for the interactive use - make sure you take the fastest harddisk you find.
This makes - on even slower machine - really faster one (From the Interactivity feeling). 

Entered by smurphy on Friday, 26 October 2007 @ 10:31:05  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 68242
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Question ? What startup keys / Boot options to exist on the mac mini ?   [
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 The following is a collection of what I have found on the Net.
Take into account the the following mapping in case you use a keyboard:

    Windows Macintosh
  • CTRL -> COMMANDE
  • ALT -> OPTION

  • C : Forces most Macs to boot from the CD-Rom drive instead of the internal hard drive. Only works with Apple ROM drives and with bootable CD discs.
  • D : Forces the first internal hard drive to be the startup disk.
  • N : Netboot (New World ROM machines only) - Looks for BOOTP or TFTP Server on the network to boot from.
  • R : Forces PowerBooks to reset their screen to default size (helpful if ve been hooked up to an external montior or projector!)
  • T : Target Disk Mode (FireWire) - Puts machines with built-in FireWire into target Disk mode so a system attached with a FireWire cable will have that device show up as a hard drive on their system. Very useful for PowerBooks!
  • Mouse Button Held Down : Ejects any mounted removable media.
  • Shift : Disables all extensions (Mac OS 7-9), or disables Login items when using Mac OS X 10.1.3 or later. Also works when booting Classic mode up just like you were using the OS natively.
  • Option : When using an Open Firmware "New World ROM" capable system, the System Picker will appear and query all mounted devices for bootable systems, returning a list of drives & what OS they have on them. On "Old World" systems the machine will simply boot into s default OS without any Finder windows open.
  • Space bar : Brings up s Extension Manager (or Casady & s Conflict Catcher, if installed) up at startup to allow you to modify your extens ion set.
  • Command-V : Boots Mac OS X into "Verbose Mode", reporting every console message generated during startup. Really shows s going on behind the scenes with your machine on startup!
  • Command-S : Boots Mac OS X into "Single User Mode" - helpful to fix problems with Mac OS X, if necessary.
  • Command-Option : Rebuilds the Desktop (Mac OS 7-9).
  • Command-Option-P-R : Erases PRAM if held down immediately after startup tone. Your machine will chime when s erased the PRAM, most people will hold this combination for a total of 3 chimes to really flush the PRAM out.
  • Command-Option-N-V : Erases NVRAM (Non-Volatile RAM). Used with later Power Macintosh systems mostly.
  • Command-Option-O-F : Boots the machine into Open Firmware (New World ROM systems only).
  • Command-Option-Shift-Delete : Forces your Mac to startup from its internal CD-ROM drive or an external hard drive. Very helpful if you have a 3rd party CD-ROM drive that is not an Apple ROM device.
  • Command-Option-Shift-Delete-#(where #= a SCSI DEVICE ID) : Boot from a specific SCSI device, if you have your 3rd party CD-ROM drive set to SCSI ID 3, you would press "3" as the # in the combination.

 

Entered by smurphy on Wednesday, 09 July 2008 @ 17:24:46  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 66564
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Question ? Is there a listing of the beep codes for the mini ?   [
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 The following beep codes have been found so far.
The beep codes were revised in October 1999,[2] and have been the same since. In addition, on some models, the power LED would flash in cadence.

  • 1 beep = no RAM installed
  • 2 beeps = incompatible RAM types
  • 3 beeps = no good banks
  • 4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
  • 5 beeps = processor is not usable

 

Entered by smurphy on Monday, 06 October 2008 @ 12:02:57  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 65264
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Question ? How to Disable/Enable Spotlight under Mac OS-X ?   [
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 Disabling Spotlight
- Launch Terminal and type the following: sudo nano /etc/hostconfig
- Navigate using the arrow keys down the following entry: SPOTLIGHT=-YES-
- Change SPOTLIGHT=-YES- to SPOTLIGHT=-NO- and save it.
- Next, you'll want to disable the index by typing the following in the Terminal:

 mdutil -i off /

And to erase the current Spotlight index, type:

mdutil -E /

Re-Enable Spotlight
- follow the same steps as above, but change SPOTLIGHT=-NO- to SPOTLIGHT=-YES-
- type mdutil -i on / in the Terminal
- Reboot, and Spotlight is back as usual  

Entered by smurphy on Thursday, 14 May 2009 @ 12:06:54  
Configuration - Apple Mac-mini, # Hits: 63545
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Question ? Mac Mini 4,1 builtin bluetooth receiver and Logitech MX5500 MX Revolution   [
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 Note - in case you use Ubuntu 11.04 - you don't need to do this - it works out of the box already.

If a btusb module is loaded - unload it first with

sudo rmmod btusb

Download and install this debian package: btusb-dkms_0.0.1_all.deb

Install the extracted deb file. Problem is that this file is made for older kernels. So - all we do - is install it, and replace the btusb.c file later to avoid the error.
Install with

sudo dpkg -i btusb-dkms_0.0.1_all.deb 

Download the replacement btusb.c and replace /usr/src/btusb-0.0.1/btusb.c with it.

After that, run compile and install the new module in the terminal, using this as a guideline:

sudo dkms remove -m btusb -v 0.0.1 --all
sudo dkms add -m btusb -v 0.0.1
sudo dkms build -m btusb -v 0.0.1
sudo dkms install -m btusb -v 0.0.1
sudo modprobe btusb

Finally, restart the bluetooth service with:

sudo service bluetooth start

You can get rid of the dpkg error message by downloading the following file and copying it to /usr/src. Run sudo apt-get install -f to remove installer error message.

Note - the data and the code on this page has been copied from Mac Book Pro/Ubuntu Maverick thread, as I'm too lazy to remember the Link every time I have to fix it on my mac mini. So - Thx to the community for the info. 

Entered by smurphy on Wednesday, 20 October 2010 @ 17:15:08  
Authentication problems - Apple Mac-mini, # Hits: 57219

Attach   btusb-dkms_0.0.1_all.deb  [ 8,570 bytes - application/x-deb ]
Attach   btusb.c  [ 28,166 bytes - text/x-csrc ]
Attach   btusb-0.0.1.dkms.tar.gz  [ 6,813 bytes - application/x-gzip ]
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Question ? How can I migrate my iTunes playlists to Amarok ?   [
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 Found a script on the internet that does just that: itunes2m3u.py
Download the script, and make sure you find the iTunes Music Library.xml file. Copy both into the same directory, make sure you have python installed on your Linux machine, and execute the scripte with the iTunes Music Library.xml as argument:

~$ ./itunes2m3u.py iTunes\ Music\ Library.xml

It will dump all existing playlists in the iTunes library file as m3u files.

Import these into Amarok, and you're done.

Source for this script can be found here

Entered by smurphy on Saturday, 23 October 2010 @ 19:06:56  
Linux on Apple Hardware - Apple Mac-mini, # Hits: 56736

Attach   itunes2m3u.py  [ 7,882 bytes - text/x-python ]
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Question ? How to get KUbuntu onto a macmin 2,1   [
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 The issue with the Mac Mini 2,1 is that while it has an x64 processor (Core 2 Duo), it has a 32-bit EFI implementation. So getting a boot-loader to load an EFI loader is not that easy. Below are some links to help handling this:

 

Entered by admin on Thursday, 12 May 2016 @ 20:27:01  
Configuration - Apple Mac-mini, # Hits: 10894
 
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