When you create multiple users in Mac OS X, each person who uses your MacBook — hence the term user — has a separate account (much like an account that you might open at a bank). Mac OS X creates a Home folder for each user and saves that user’s preferences independently from those of other users.
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When you log in to Mac OS X, you provide a username and a password, which identifies you. The username/password combination tells Mac OS X which user has logged on — and, therefore, which preferences and Home folder to use.
But if you share your Mac with other users — your family or coworkers, for example — your Mac will contain multiple user accounts. At least one of these is an administrator account, and that account is allowed to change any settings on the Mac. Others can be standard user accounts, who can change settings that affect some of what they do on. Aug 16, 2009 The Linux users' guide to Mac OS X. By Juliet Kemp (Linux Format Issue 121) 16 August 2009. Similarities and differences between the two systems explained. Fire up a Mac OS X.
Each account also carries a specific level, which determines how much control the user has over Mac OS X and the computer itself. Without an account with the proper access level, for example, a user might not be able to display many of the panes in System Preferences.
In this feature we look at how to install Linux on a Mac - including how to completely replace macOS or Mac OS X with Linux. How to install Linux and breathe new life into an older Mac.
The three most common account levels are
- Root: Also called System Administrator, this über-account can change anything within Mac OS X — and that’s usually A Very Bad Thing, so it’s actually disabled as a default. https://bossbravo.weebly.com/external-hard-drive-why-requires-reformatting-for-mac-os-x.html. (This alone should tell you that the Root account shouldn’t be toyed with.)For instance, the Root account can seriously screw up the UNIX subsystem within Mac OS X, or a Root user can delete files within the Mac OS X System Folder.Enable the System Administrator account and use it only if told to do so by an Apple technical support technician. (And don’t forget to disable it immediately afterward!)
- Administrator: (Or admin for short.) This is the account level that you’re assigned when you install Mac OS X. https://bossbravo.weebly.com/apple-os-x-emulator-for-windows-7.html. The administrator account should not be confused with the System Administrator account!It’s perfectly okay for you or anyone you assign to use an administrator account. An administrator can install applications anywhere on the system, create/edit/delete user accounts, and make changes to all the settings in System Preferences.However, an administrator can’t move or delete items from any other user’s Home folder within the Finder, and administrators are barred from modifying or deleting files in the Mac OS X System Folder. (There are UNIX commands you can use from the Terminal application that can work around these restrictions. However, these locations on your system are off-limits for good reason.)A typical multiuser Mac OS X computer has only one administrator — like a teacher in a classroom — but technically, you can create as many administrator accounts as you like. If you do need to give someone else this access level, assign it only to a competent, experienced user whom you trust.
- Standard: A standard user account is the default in Mac OS X. Standard users can install software and save documents only in their Home folders and the Shared folder (which resides in the Users folder), and they can change only certain settings in System Preferences.Thus, they can do little damage to the system as a whole. For example, each of the students in a classroom should be given a standard-level account for the Mac OS X system that they share.If Parental Controls are applied to a standard account, it becomes a managed account, allowing you to fine-tune what a standard account user can do.
How do you run three operating systems on a PowerPC Mac, especially when one of those is Linux? This tutorial will show you how.
Mac OS 9 is still a fantastic operating system ten years after Apple moved on, and it still has it uses. I still use it regularly, and there are people still making software for it.
Mac OS X is a phenomenon and the reason most of us are Mac users.
And then there is Linux, which in the last few years (and mainly due to Ubuntu) is fast becoming a viable alternative to both Windows and Mac OS X.
Running multiple versions of Mac operating systems is pretty simple – as long as they are on separate partitions, you can use the “ALT method” (hold down the Alt/Option key during startup) to select which one you want to boot. When you introduce Linux, things get a little more complicated.
To use this guide, you need some knowledge of drives, partitioning, and Linux.
I must point out that this will wipe your hard drive,
so back up anything you need to keep….
so back up anything you need to keep….
I have just successfully triple-booted my aging PowerBook G3 Pismo; it took a few attempts to get it running properly and needed a few last minute tweaks. My PowerBook is a 500 MHz G3 model with 768 MB RAM, a newish 60 GB hard drive, and a Panasonic UJDA750 combo drive.
I must point out that this will wipe your hard drive, so back up anything you need to keep and make sure you have your install discs to hand.
Boot and Install OS 9
First, you will need to boot from the Mac OS 9.x CD. Mine is a 9.1 CD. The version of OS 9 you need will depend on the Mac you’re working with (Low End Mac’s profiles can help here), and if you have the grey install discs that came with your Mac, even better. Mine is a retail version.
To boot from the install disc, put the CD in your Mac’s optical drive and hold down the C key during startup.
Once booted, you will need to run Drive Setup to resize the partitions on your hard drive. I split my 60 GB drive in to three partitions: 2 GB for OS 9, 35 GB for OS X, and 15 GB for Linux. It is advisable to name your partitions (perhaps OS 9, OS X, and Linux) so it is easier to find them when installing the rest of the operating systems. If you want, you can create additional partitions for different versions of OS X.)
Now you are ready to install OS 9 to its partition. Even on my 10-year-old G3, it installed very quickly. Follow the onscreen prompts. Once done, you can reboot into a fresh OS 9 installation and complete the set up.
It is a good idea to make sure OS 9 is up to date. Mac OS 9.2.2 was the last version. (I have the updates on a CD, but you can get them from Software Update, which I recommend running anyway to catch any stray updates that might be available.)
Install OS X
With that out of the way, it is time to install Mac OS X. Restart your machine with the OS X install disc in your optical drive and hold down the C key to ensure that it boots from the disc.
Choose your installer language when it pops up. Then go to the Utilities menu and choose Disk Utility. Select the partition you created earlier – mine was called OS X – and choose the Erase tab. Then click Erase, ensuring the Volume Format says Mac OS Extended (Journaled). Once that’s done, close Disk Utility, and your Mac will return to the installer screen. Select Continue, then Continue again on the Agreement screen.
In the list of drives, select the drive you just erased and select Continue. The install will start – follow the onscreen prompts until the install is finished. Once installation has finished, your Mac will reboot and you will be faced with the intro screen and registration screen, where you can create an account and register with Apple. Once done, you will see a fresh looking OS X desktop.
From there you can either configure your wireless network – if you skipped this part in the intro screen – or just plug in an ethernet cable. It is advisable to update to the latest version of OS X and install any updates available. Once again, I have the Combo update for 10.4.11 on a disc, but you can use Software Update to get it and install it along with anything it says needs installing. This may take some time and require a few reboots and reruns of Software Update to complete update everything.
Once installed and updated, you have a machine that can boot into to either OS 9 or OS X. To do so, simply hold down the Alt/Option key during startup – this will give you all the bootable systems on your machine – or you can choose your start up disc in OS 9/OS X.
Install Linux
Once Linux is installed, using the startup disk option is not recommended,
as it can interfere with the Linux boot manager.
as it can interfere with the Linux boot manager.
Once Linux is installed, using the startup disk option is not recommended, as it can interfere with the Linux boot manager.
Now comes the final install and the trickier part. You need to have of copy of Ubuntu – any version will do. Official support for PowerPC stopped with version 7, but unofficial ports have been made of every version since. As I write this guide, the latest version is 10.10 “Maverick Meerkat”, and that is the version I used.
Note: Do not download the “desktop” CD. While this will work, there is a bug in Ubiquity (the installer) that causes problems when it comes to working out partitions and the bootstrap. You need the “alternative” CD, which has the same OS on but uses a text-based installer and gives you more control over partitioning. I also find it faster for installing, as it is less graphics intense.
Once you’ve downloaded the disk image, simply burn it to CD – I use Disk Utility in Mac OS X. You should burn at a slow speed; I burned at 4x. Once burnt, reboot your Mac with your freshly burnt disc in the drive holding down the C key to ensure it boots from the CD.
Os X Vs Mac Os
This is where it becomes unfamiliar territory, unless you have had previous dealings with Linux.
You will be faced with a black screen with white text on it and be prompted with the word boot. Simply press Enter, and it will start reading from the CD. Some Macs have problems graphics-wise with Ubuntu, which is another reason to use the alternative text-based install CD.
Pick your language, pick your country, and let it detect your keyboard. Follow the onscreen instructions and let the installer continue. It will flick through a number of screens, happily working by itself. If you have an ethernet connection, now is the time to plug it in, as the installer will configure and check for an Internet connection.
Don’t worry – it can be sorted out later and you can set up your wireless later. Configuring wireless in the installer is a little flaky, so I would suggest waiting until it is installed.
Now the partitioner screen will appear, and this is where you need to be careful. You will be prompted with a list of options: Select Manual and find the drive you labeled Linux earlier. This will be in HFS or HFS+ format. You want to delete that and write changes to disk. Then go back to the main partitioner screen and select “use continuous free space”. This will automatically sort out the main, swap, and boot partitions as needed. It will format the drive as necessary – as ext3 or ext4 – without messing up your OS 9 and OS X installs. Let the rest of the installation complete.
It will install yaboot, which is the PowerPC boot manager for Linux. For anyone who has used Linux on x86 machines, it is similar to Grub and Lilo. It should automatically detect your Mac OS X install, but it may not detect your OS 9 install (it didn’t mine).
Tweaking Things
Once complete, your machine will reboot, and you will be faced with a yaboot screen – black with white text listing your boot options, which at present should be Linux, OS X, and CD.
You now have three OSes installed, but there are a few tweaks to get things working 100%. Firstly, the screen does not always work when booting into Linux. This is something changed in Ubuntu 8 upwards. I recently tried Ubuntu 6.06 “Efty Edge”, and it detected my screen and resolutions with no problems. However, 10.10 “Maverick Meerkat” didn’t, and it just turned the screen a funny colour. This is common with old G3 Macs.
You need to edit xorg.conf, which is the configuration file that holds the screen settings. This is a little tricky – luckily I found somebody online who had a working xorg.conf for the Pismo – it was actually for Karmic Koala/Lucid Lynx, but I can confirm that it works in Maverick Meerkat too.
You may need to do a search for information on your particular model of Mac, or possibly it will work fine with yours and not need manually configuring.
To edit it, you need to boot Linux, and when the black screen comes up, exit X (the graphically point and click interface, which isn’t working properly) by pressing Ctrl-Alt-F1. This will take you to a prompt.
Mac Os X Guide For Linux Users Guide
At the prompt type sudo nano /etc/X11/xorg.conf – it is case sensitive. If this is the first time you are editing your xorg.conf, it will be blank, as later versions of Ubuntu only use xorg.conf if there is something custom in there.
Pismo users can copy the text from the page above; other Mac users will need to look up their settings. Once done use Ctrl-O to write to disk. You can exit it now.
Reboot your machine, and you should have a fully working X system. You will see the Ubuntu login screen pop up on reboot.
The next thing to tackle is the lack of OS 9 in yaboot. While in Ubuntu, open Terminal under Applications > Accessories and type sudo fdisk -l /dev/hda
This will list all the partitions on the the drive – where hda is your primary drive. If you only have one drive in your machine, it will be hda. Make a note of which partition it says OS 9 is on. Mine is hda9 and is labeled OS 9, hence the reason I said to name your drives earlier.
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So type sudo nano /etc/yaboot.conf Ntfs driver for mac os x yosemite.
You will see in there a line that says macosx=/dev/hda10 (mine says 10, yours might be different). This mean the Mac OS X install is number 10. Below that we need to enter the line macos=/dev/hda9 (where 9 is the number where OS 9 sits).
By default, Linux will be loaded after a short pause if nothing is pressed. I wanted to change that so OS X is the default. Under the line you just wrote, write defaultos=macosx. You could write defaultos=macos if you wanted OS 9 to be your default OS, but I wanted OS X.
Once again use Ctrl-O to save your changes to disk. We also need to write sudo ybin -v to write the yaboot instructions that you just changed to the boot partition. Reboot the machine, and you should now see an entry for OS 9. If you leave the boot selector for a few seconds, it should now go to OS X by default.
Enabling OS 9
One last thing we need to sort out is OS 9. If you were to boot OS 9 at this point, it would come up with a flashing floppy disk, because the Ubuntu installer corrupts the OS 9 drivers on that partition. This is easily fixed. Boot using the OS 9 CD (either via holding down Alt/Option and selecting the CD or select CD in the yaboot selector). Once booted, you need to go to Drive Setup. Under the Functions menu there is a option to reinstall drivers. This fixed it for me.
That is it. All three OSes and CD boot is available from yaboot, and all three OSes work fine. Now it is up to you to configure and tweak each OS the way you want it. (This is a rough guide with as much information as I could remember. I went back and checked most of it, but unfortunately I did not write it down as I did it initially.)
Have fun running three OSes on your PowerPC Mac.
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