10 3 likes 97,309 views Last modified Apr 3, 2013 6:36 AM
Downloaded the iso image and proceeded to make a Mac OS X bootable USB on windows. To create a bootable media to install Mac OS X leopard on my old macbook A1181. I used imageusb and installed. I was very happy to find this 10.5.4 version which worked perfectly. Many thanks to all. This is a Bootable, Universal Install CD-ROM of Mac OS 9.2.2, US English. Suitable for G3 & G4 Macintosh models capable of booting from a Classic Mac OS via CD-ROM. Mac OS CPU Software 4.9, includes the Mac OS ROM file v9.2.1 Top DL: The 9.2.2 universal OS installer CD's archive is a.zip compressed.iso image.It is OK to burn this back to CD using ImgBurn on Windows or Disk Utility on Mac.
Hello and welcome to my User Tip
You need to erase and install 10.6 Snow Leopard, I will show you how to do this.
If your here because you upgraded to 10.7 Lion and want to go back to 10.6 Snow Leopard you need to see this thread.
A little more preparation is in order to make sure your files work in Snow Leopard.
If your here because you have a problem and you think erasing and reinstalling is going to solve it, it most certainly will, but you might not need to go this far and you might want to recover data off the non-booting drive first.
If your here because you want to secure erase data better than writing Zero's acorss the selected hard drive or partition (good enough for most folks), this tip doesn't cover that, see this one then come back here afterwards.
Use the correct 10.6 disk to install Snow Leopard
Use the free MacTracker to find your model of Mac, you can gleam the model from your Apple Menu > About this Mac > More information and look for something like 'MacBook Pro 3,1' and punch that into MacTracker.
There are basically two types of 10.6 install disks, the gray or black machine specfic ones that came with a new Mac (free iLife) or the 10.6.3 retail disks (no free iLife).
You can't use another model of Mac's 10.6 machine specific disks with another Mac, there isn't hardware drivers on those disks that will work on other Mac's.
If a Mac came pre-installed or from the factory with 10.6.3 or later, you cannot use the 10.6.3 retail disks (no iLife) from Apple online, you have to call Apple for your 10.6.3+ machine specific install disks (free iLife included)
Ready to erase and install Snow Leopard?
Your data will be gone after this and not recoverable what so ever, don't come crying later that you missed something.
You might want to take this chance to export web browser bookmarks, grab product keys or even clone the old 10.6 drive before you erase it.
Unmount and disconnect all other drives. No mistakes. Here we go.
Make sure the bottom of the disk is clean, use a very soft cloth and a tiny dab of rubbing alcohol and polish to a shine. ?
Hold c (or option/alt key) down on a wired or built in keyboard, and boot the machine, off the 10.6 installer disk (or hold option key boot off the 10.6 clone drive) and under the Utilities menu (folder) is Disk Utility.
To erase the entire drive of all partitions: https://dqxlgy.weebly.com/2019-turbotax-home-and-business-mac-download.html.
Select the entire internal boot drive on the far left, it will have the drive makers name and size.
Do not select the indented names, those are just partitions on the drive, you need to erase the entire drive to catch everything, rebuild the GUID partition table and the hidden EFI partition.
If your here to revert your machine to Snow Leopard from 10.7 or later, then make sure to select the ENTIRE drive on the left in Disk Uitlity.
To erase just the OS X partition leaving others like Bootcamp etc.
Select the indented name of the OS X partition instead, however it will not cure problems in the hidden EFI or GUID partition table. Do not do if your reverting to Snow Leopard from a later OS X verison, because 10.7 and later OS X verisons alter the GUID and add a Recovery HD partition that needs to be removed before 10.6 is reinstalled. This is so later when you need to use the 10.6 disk to repair the drive, it knows what is on the boot drive.
Click Erase > Security option > Zero All Data (will map off any failing sectors) go watch a movie, it takes a bit and improves your hard drives reliability and read speeds. (SSD no need zero, just erase). Trust me this works wonders!
If the Disk Utility > Zero Erase fails or hangs, the drive has run out of spare sectors and is worthless, it will have to be replaced, better you found out now than later with your data on it.
Check under Partition: Options that you have a GUID and Format: OS X Extended Journaled, if not change it to those and apply.
Quit Disk Utility. You will be back into the 10.6 installer.
Fresh installing Snow Leopard 10.6
If your using your option key bootable 10.6 clone, use the cloning software to reverse clone 10.6 onto the internal drive then return your files from the storage drive. Your done, see you later.
Now for you who just erased the internal drive via the 10.6 disk and need to install fresh.
'Fresh' means no possibly corrupt TimeMachine, Migration Assistant, or clone restores. New OS X, programs and only vetted files returned.
Performance types swear by this method as it allows the leaving of previous junk, malware, old files etc behind. Trim and speedy.
1: Quit Disk Utility and install 10.6. from the installer disk.
Reboot, setup and use the same user name as before. (different password ok) Why?, because you can place your user files from backup right on in and your iTunes playlists, permissions etc work. Unless you don't want to use the same name, then you lose the playlists and have to recreate them, change the permissions for files.
2: Use Software Update to get up to 10.6.8 fully, repeat until clear. This is very important to do or you'll have problems later.
3: Install Rosetta for your PowerPC based programs
Insert the Mac OS X installation disc that came with your computer or with your Mac OS X retail package.
Double-click the Optional Installs folder, and then double-click the Optional Installs package.
A package has an icon that looks like an open box.
Follow the onscreen instructions. Select the disk where you want to install Rosetta and click Continue.
Select the checkbox next to Rosetta, click Continue, and then click Install.
4: Install all third party programs from fresh original sources and compatible with 10.6.8
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If by chance you get a hang upon reboot after installing third party software, hold the shift key down upon booting and update or remove the problem software, you will know, you just installed it. ?
If you had 10.5 previously on the machine, you'll notice your iLife is missing with the 10.6 install. This is because the 10.6.3 disk doesn't have it, only the machine specific disks do that come with the Mac when it was new.
You can either buy the 10.6 iLife from Apple or use Pacifist from CharlesSoft to extract the 10.5 versions from the 10.5 install disks. You paid for it so it's yours.
5: Once you have all your third party software installed (as best as you can of course) next is to hook up your storage drive.
Return the contents of those user files folders: Music, Pictures, Movies, Documents etc (not Library) to their respective folders in each account
Apple support doc on installing 10.6 again
Hard drive performance tip
If you installed exactly in the order as I have outlined above (1, 2,3,4), and keep your boot drive below 50% filled, it will operate at peak performance forever until it dies, or you damage it by moving it around while it's operating.
Your hard drive performance will suffer greatly the more OS X boot partition data is written on the second 50% of the drive, even if you remove some to get under 50%.
If there is any data on the second 50% of the drive, the heads have to travel there to get it, use the smaller sectors and that slows read/write performance on hard drives (SSD no need to worry).
Whatever you do, don't go past 80% filled on boot drives on Mac's as your pressing your performance and stability luck.
Problems installing?
1: Hold the power button down to hard shutdown.
2: Hold the option key and trackpad button/wired left mouse button down (wired or built in keyboard might be needed) and boot the machine.
3: The disk hopefully should pop out, if not when you get to Startup Manager, keep pressing eject on the keyboard.
4: Take some rubbing alcohol (a tiny bit) on a soft clean cloth and polish the bottom of the disk, when dry and blemish free, stick it in and when it appears, click the arrow key to boot from it.
5: Review your secure erase procedures here to make sure your not leaving data
6: Try to reinstall 10.6 again
7: If that fails, call Apple and tell them what Mac you have and see if you require MACHINE SPECIFIC Snow Leopard install disks. (10.6.4 -10.6.8) These disks also include the free iLife suite on them.
The 10.6 white retail disks sold online are 10.6.3 and won't work in your machine due to a lack of more recent hardware drivers not present on those disks also they don't contain the free iLife suite.
Apple might also have 10.6.0 - 10.6.3 machine disks as well if you need the free iLife, but they could take longer to come than the 10.6.3 white retail disk.
8: After install, just hard shutdown and it will boot to the 'Welcome' video for the next owner.
Advanced options
9: If Apple is going to take too long to send you disks or won't, there is a option to create a image of the bad disk and burn a new one on another Mac (possibly on a PC too) as a ISO image.
Sometimes when the read and burn occurs, errors are repaired and the new image will work when the old one won't.
10: Another option is to create a Snow Leopard boot USB from the 10.6 disk, then boot and install with that.
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That's it, enjoy. ?
These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
Download macOS
Find the appropriate download link in the upgrade instructions for each macOS version:
macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.
OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
Use the 'createinstallmedia' command in Terminal
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- Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
- Open Terminal, which is in the Utilities folder of your Applications folder.
- Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace
MyVolume
in these commands with the name of your volume.
Catalina:*
Mojave:*
High Sierra:*
El Capitan: - Press Return after typing the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- When prompted, type
Y
to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created. - When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.
* If your Mac is using macOS Sierra or earlier, include the
--applicationpath
argument, similar to the way this argument is used in the command for El Capitan.Use the bootable installer
After creating the bootable installer, follow these steps to use it:
- Plug the bootable installer into a compatible Mac.
- Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it. - Choose your language, if prompted.
- A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
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For more information about the
createinstallmedia
command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:Catalina:
Mojave:
High Sierra:
El Capitan: