How to dual boot mac osx and ubuntu ppc

Nov 16, PM. Communities Contact Support. Sign in Sign in Sign in corporate. Browse Search. Ask a question. Any help would be great as I'm a novice to Linux although I tried out a live CD on my Windows 7 laptop and was liking the new "drug" What partitioning software will I need hopefully to repartition on the fly and what build of Ubuntu Studio works with a PPC and maybe some instructions is what I'm needing More Less.

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Search forums. Log in. For a better experience, please enable JavaScript in your browser before proceeding. Thread starter aurora72 Start date Feb 11, For full details I experienced, please see this post [Edit: after a while, the problem on this post was solved, see the second post there Is there a practical way to make Ubuntu install after FreeBSD is installed?

Last edited: May 8, What you need to do is recreate a partition scheme with the Ubuntu disk.

Apple boot block, ext4, and swap for Ubuntu. Re-install Ubuntu on it. Apple boot block,ext3, swap, and others for FreeBSD. Mark each of these as "Do not use.

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Re-install FreeBSD on it. If you don't require the tbxi attribute i. Finally, format the bootstrap partition and copy the files to it using sudo mkofboot --config yaboot. Omit the --nonvram if you want to boot the device by default instead of a hard drive. Installing to USB If you have installed a proper system onto a USB device then it is likely the installed system will not automatically boot.

Instead, any existing OS will continue to boot as normal. If you want to permanently boot from the USB device instead of a hard drive then you will have to manually specify an ofboot argument e. See the section below for more advice on this. If you don't want to boot permanently from it i. On some computers you will be able to boot by holding down the option key at startup, while on others you will still have to go through openfirmware. If you've had to skip installing the bootloader then see this troubleshooting question for how to boot the system.

Once you've edited yaboot. To change the colors of the yaboot screen include these lines below. Alter as desired. These settings below create a color screen similar to the OS X open firmware colors. On some installations e.

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Gentoo have an excellent quick guide to manually editing the yaboot. It contains advice on the ofboot argument, as well as, adding a root delay. You can also look at the yaboot. The more wordy Debian guide is here. This gives instructions on how to boot the system from openfirmware. See also the troubleshooting section below for how to use a Ubuntu CD to boot your installed system or manuallly edit your yaboot. The ybin program creates a file ofboot. This is a simple CHRP script that controls the first stage boot menu.

If you require additional options for example to add a boot USB feature , then it is possible to alter the script. This is beyond the scope of this FAQ, but it is very easy for anybody with programming experience. Use the ofboot. In your yaboot. In an ideal world, yes, of course. For many machines it does.

However, if you get a blank screen on boot, your boot time is excessively long, or if your picture is not displayed correctly then you will have to make some adjustments. You may also like to experiment with your graphics setup to increase performance or enable a certain feature. Unfortunately, there are quite a few problems with essentially the same symptom - a blank or corrupted screen. So it is often a case of trial and error to see what works see this troubleshooting question first. There are broadly two approaches to solving graphics problems: adding a yaboot parameter and setting up an xorg.

The yaboot parameter could be seen as the "quick fix" approach, good to get something at least on the screen e. An xorg. Increasingly, an xorg. Note, Ubuntu evolves with every new release and yaboot parameters you may need for one release may not be required for the next release. To take advantage of improvements you should retest your graphics setup after an upgrade. To solve graphics problems it helps to know what sort of video card you have.

If you don't know what you have, you can look up your computer at Apple or Everymac. Though typing lspci at the terminal prompt should give you the information you need. Framebuffers are used to display things like the text console and splash screen, but they are also crucial in determining if suspend or brightness keys work. Offb is a basic framebuffer with typically a very limited palette and no suspend. You add a yaboot parameter also known as a boot or kernel parameter after whatever you normally type at the yaboot prompt. See this Ubuntu bug report , particularly comment Don't worry yet , keep reading for alternatives.

KMS supposedly provides an improved graphical boot with less flickering, a built-in framebuffer console, seamless switching from the console to Xorg, and other features. To achieve this, KMS moves some of the responsibility for selecting and setting up the graphics mode from the Xorg to the kernel.

KMS can be problematic so if you have one of these cards then one of the first things you should try is turning off KMS. For nVidia cards use the yaboot parameter nouveau. Note the openfirmware framebuffer has a limited colour depth - hence the 'psychedelic' colours you will see. You can increase the colour depth with fbdev by using a different framebuffer such as nouveaufb or the legacy framebuffers nvidiafb or rivafb and creating an xorg.

For radeon cards use radeon. Radeon users before Non-KMS support was removed entirely from the radeon xorg driver in The boot parameter 'nomodeset' can be used instead of radeon. To force a nouveau framebuffer mode e. This has been known to solve problems with some nVidia cards and nouveau. Gentoo have more on phantom outputs with nouveau and other suggestions for you to try , see here. See the bottom of this link for an explanation. The official guide suggests a different way, see the bottom of this page. Note, you will have to perform extra steps to use these framebuffer in some versions of Ubuntu as they are not always built in to the kernel - see below.

It is possible to combine yaboot parameters. For example: Linux radeon. Forcing a mode may fix some splash problems? The yaboot parameter radeon. To check if a framebuffer is built in look at the config files in the boot directory. If no other framebuffer is available at boot time then you may get a frozen or blank screen until the Xorg server starts. For background information on framebuffers see here , but you'll have to filter out any details relating to grub as PowerPC does not use this.

It also gives some information about the command fbset. This allows you to show or change framebuffer settings from the console. You can check if a framebuffer is working by booting into single user mode. A boot parameter that you'll find reading forums is nosplash probably a throw back from when the splash screen was done with usplash rather than plymouth. However, if you want to disable the splash screen it is better to use one of the nosplash options on the CD if you can.

Press TAB at the yaboot prompt to find these. The only reliable way to disable the splash screen on an installed PowerPC system is to remove the word 'splash' from the yaboot. It is also worth opening the yaboot. Note, yaboot parameters don't always work with the live cds, but you will still be able to install using the alternate or mini cds.

However, other parameters may not be copied so this is something you need to check after an install. Add the desired parameter into the quotes, or remove the word splash if you want to disable the splash screen. Every parameter inside the quotes should be separated by a space. For example, adding radeon. If you have a distorted picture, a poor resolution, poor colours or can't boot past a command line login then you may need to setup an xorg.

For a more comprehensive guide have a look here or the xorg. To setup an xorg. Sample xorg. These can sometimes save you reading the documentation, but some of them are not the best setup that's a polite way of putting it! If you still want to use them then download the file using the wget command at the bottom of the appropriate page.

How to dual boot linux and mac os x leapord on ppc?

Reboot using "sudo reboot". It is not hard though to setup your own xorg. Some instructions for setting up an xorg. Then type: sudo Xorg -configure sudo mv xorg. Also, you can probably ignore any errors from the command, such as "number of created screens does not match number of detected devices", as it will still generate an xorg.


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It just means you will have to delete some sections of the xorg. At this point you may be freaking out a bit because it does look complicated when you are new to this sort of thing! EndSection To solve graphics problems we are mainly interested in the "Monitor", "Device" and "Screen" sections. Assuming you have a standard single monitor setup, then you probably only want 1 of each of these sections so you may have to delete some sections if it gives you two.

What about OldWorld Macs?

If you have an Apple computer then the section you want to keep will have radeon, ati, r, nouveau or nv written in the Driver entry what is written depends on your graphics card. There are no proprietary non-free drivers for ppc. Above the Driver entry will be the Identifier entry.

The "Monitor" and "Screen" sections also have Identifier entries. The "Screen" section has entries to reference the "Monitor" and "Device" sections as it's purpose is to bind the monitor to a graphics card. You want to keep the "Screen" section that references the identifier of the "Device" section that you are keeping.

It will probably work out that you are keeping the sections "Card0", "Monitor0" and "Screen0". You can rename these identifiers to something meaningful if you prefer. The highest level section is the "ServerLayout" section. When you delete sections you will have to change the "ServerLayout" section to reflect any changes.

A shortened xorg. For clarity, the font, module and input device sections have been deleted which you can also safely do. Note, the lines starting are comments and don't do anything. Section "ServerLayout" Identifier "X. A description of some errors can be found here. There are a lot of warning messages at the start so it may be easier to start at the bottom of the log and work up. Messages about fonts can just be ignored. Please see the sections below for card specific errors. If your resolutions have been incorrectly detected out of range message in the Xorg.

You must use this exactly whenever you refer to the mode in the xorg. You often see people shorten the name to "x" in which case it overrides the built-in mode. For example: Modeline "x" An example "Screen" section where modes have been explicitly stated is below: Section "Screen" Identifier "Screen0" Device "Card0" Monitor "Monitor0" DefaultDepth 24 x will be the default mode because it is first in the list. The modes will apply to all colour depths because a 'Depth' entry has not been specified.

If you are using KMS then you may find that your preferred mode has been ignored. If this is the case, set the mode name so that it overrides the built-in mode. For more information on how to use the xrandr command see here. The GUI utility xvidtune can be used to see how to adjust the numbers in modelines. An alternative to adding modelines is to specify VertRefresh and HorizSync values for your monitor. You can also find them out using the ddcprobe command. The monitor range is shown at the bottom of the output.

For example The first pair in this example is your HorizSync rate and the second pair is your VertRefresh rate. The Monitor section using these values would look like this: Section "Monitor" Identifier "Monitor0" HorizSync VertRefresh EndSection If you have a G3 iMac then the values you get from the ddcprobe command are likely to be too restrictive. Use the values and instead. Note, settings stored in PRAM impact geometry. Monitor sections may be tied to specific outputs of the video card.

This will also enable DRI on some low memory graphics cards. If you have configured your own xorg. Make sure to also look at the EXA manual if your card uses this as it contains some extra options you can use. XAA options are in the xorg. Look at the xorg. EE Screen s found, but none have a usable configuration. If you are using An alternative "fix" for the framebuffer error can be done through the xorg.

Possibly this is the cause of some problems. You will likely see a message like this note the 0x mode in your dmesg log: atyfb However, without DRI, both desktop effects and applications will be software-rendered, which will be slow. You can find the latest source code here. The compat API was designed in such a way that it's backwards compatible with old X servers so it should compile in Use the flags "--enable-exa --enable-xaa" if necessary.

This bug is tracking PowerPC issues. Nvidia cards There are no proprietary drivers for PowerPC so please ignore any well meaning advice to install them using the jockey-gtk utility it will more than likely just crash when you try to open it anyway. If you can only successfully boot using the yaboot parameter "nouveau. Ammend the xorg. From Compile instructions are in this post.

You cannot use a binary package of nv from a previous version of Ubuntu. If you get the error ' EE Failed to load module "nv" module does not exist, 0 ' in your Xorg. To continue to use it in Please try using the newer 'nouveau' driver first although you may find nv faster.

If your firefox pages are not rendered correctly with nouveau, then some users e. If you can't get the version of nouveau that is in the ubuntu repositories working then there is a tutorial to compile the latest nouveau driver here. You'll have to adjust some of the instructions for PowerPC.

LTS versions have updated packages available e. If you can't get the nouveau xorg driver working and compiling nv is not an option then you will have to use the fbdev driver. To overcome the limited palette of the offb framebuffer, use the nouveaufb, nvidiafb or rivafb framebuffers.

Dual booting with Mac OS X (PPC) and Linux

With In the device section of my xorg. If you experience choppy scrolling in firefox can occur when you turn off KMS then it is worth experimenting with the AccelMethod option. Under However, you may find that "XAA" is better. EXA uses less processor power but under I've only found two things that make a big difference.

The second is to turn on HyperZ. This isn't done in xorg. I have no idea what this actually does, only it makes the numbers go up in glxgears! You may also like to enable the ClockGating and DynamicPM settings as they reduce heat output and increase battery life. There are many many web pages which offer extra help for example, see the links on the compiz ati hardware page , but - like for all linux - you will have to assess if the information is still relevant and valid.

Note, if you are still using Usperspace Modesetting radeon. See this thread to enable S-video. If you want to experiment with KMS you should turn it on with the radeon. Note, the KMS radeon framebuffer will be listed in logs as radeondrmfb. If you are using a KMS framebuffer nouveaufb or radeondrmfb then try increasing the framebuffer depth using a yaboot parameter s instead of through an xorg.

How do I restart the X server? On some installations logging out and logging in again will work. You can also restart the X server by first switching to a tty console ctrl-alt-F1 etc. Therefore, if the framebuffer you want has been compiled as a module instead of 'built in' to the kernel it will not be automatically loaded. This will make the module available early in the boot process. You'll probably have to install the mesa-utils package first: sudo apt-get install mesa-utils See this answer and also the DRI wiki page for how to interpret the results.

If you have a multi-user setup then you may need to add the following section to your xorg. See this wiki for information on this, as well as, more troubleshooting tips. It has a good section on how to interpret Xorg. Install compiz config settings manager to enable more effects. Kubuntu can use Xrender or OpenGL for desktop effects. Make sure you are using the appropriate setting it will revert to Xrender if 3D hardware acceleration is disabled. If you are using Xubuntu then turning on the Composite feature will give you effects like transparency and shadows.

You can set the opacity of the Terminal through it's Preferences menu item. I also use the gl ant spotlight screensaver to test my xorg. It almost always freezes the computer when I select the preview button so I set the activation time to its lowest setting to test the screensaver. To test your 2D acceleration try various web pages the Ubuntu wikis and forums are good tests. It's probably more useful to you to achieve smooth scrolling in Firefox than a high number in glxgears. Note, in See bug. These cards will use the software rasterizer in See the There are packages that cannot be included into Ubuntu for legal reasons copyright, license, patent, etc.

It is easy to install these however, this is how: Open the terminal and type sudo apt-get install ubuntu-restricted-extras This will download a whole load of stuff around MB including codecs, Mircrosoft fonts, gnash flash support , and openjdk java. A license aggreement screen pops up for the MS fonts which you will need to accept press the TAB key if you are having a hard time selecting the OK option.

You can nolonger add Medibuntu as a repository on PowerPC, but you can still download the files individually. This is what I had to do to get my DVD drive to work. More codecs can be downloaded from Medibuntu. Note: The Medibuntu repository was discontinued in autumn and the files are no longer available there. You can still find copies of the files floating around, such as here.

You could compile libdvdcss from the source package. Or maybe use the package at debian multimedia. How do I get faster Java? These can be easily used with OpenJDK and packages are available in the repositories. See the Java community wiki for further information about these options. There are, however, two open source flash players still under development: gnash and lightspark. Note, swfdec is nolonger under development. Lightspark uses advanced OpenGL techniques that requires good support from video drivers.

It will work best in newer versions of Ubuntu and with Kernel Mode Setting? Lightspark also uses pulseaudio as it's default audio backend. Pulseaudio is not installed on a default Lubuntu installation, so if you want sound you will have to install it or compile a version of lightspark with alsa as the audio backend? You can install gnash and lightspark alongside each other since lightspark likes to 'fallback' onto gnash to play old swf files, but don't enable both the gnash firefox plugin and the lightspark plugin at the same time.

You may want install a browser extension that blocks flash content on websites because gnash CPU usage is high even for simple adverts. I hate my laptop fan coming on so I try to run my iBook as cool as possible at all times. Even if you haven't got gnash installed you may like the extension Ablock Plus. However, don't go over the top by installing many similar extensions as it will just slow your browser down.

If you want to experiment with gnash in Lightspark does not appear in the list because it goes under the name of "flash-mozilla. However, as far as I can tell Lightspark does not work with Midori anyway because it uses Webkit and not Gecko. Gnash works with Midori.

If you want to do debugging run the browser from the terminal. It is the least impressive demonstration ever! This thread offers more advice on watching YouTube, Vimeo, etc plus extra troubleshooting advice for playing videos. Gecko-mediaplayer is a plugin that allows Firefox to play videos and audio using gnome-mplayer. Totem and VLC are alternative mediaplayers with their own firefox plugins. This works quite well for videos coded in H.

You'll need Midori, rekonq or Epiphany browsers for H. WebM can be played in Firefox 4 and beyond, Opera, Midori, rekonq and Epiphany, but for me the playback is choppy similar to gnash. Vimeo uses H. Versions of Firefox 23 and beyond can play H. To download and watch BBC Iplayer programmes there is get-iplayer.

This YouTube video describes how to use wireshark to do this, but there are other ways which you can find by doing a search. I find wireshark quite addictive and find myself trying to crack the rtmp address even if I don't have to! You can download a stream using rtmpdump, or pipe the output to a media player, but gnome-mplayer will also accept the rtmp addresss directly in the 'Open location' menu item.

Partition Your Mac

The uber minimalist way to watch media is using the command line program mplayer. You can downloaded the file first or pass an url to mplayer. You can even use this without a GUI! To play music the cool people use MPD. MPC is a simple command line client for this, although you can use a web browser or mobile phone too! You can also change the user agent string of your browser so that you are delivered non-flash content.

There is a firefox extension to do this. Midori works really well on some news web sites and allows you to watch video clips that would be otherwise unwatchable. Copy and paste one of the following strings in update these please! Don't get hung up on the website that you can't use, but instead support the websites you can access.