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Improve this answer. answered Feb 13, 2021 at 3:32. TJ Luoma. 20.9k 9 71 114. I wonder if El Capitan can still be downloaded through Internet Recovery. I suppose this depends on the model year of the Mac and the firmware version. Still, might be worth a try. At least this would not require another Mac.
Right-click (or Control +click) the installer, and choose Show Package Contents from the resulting contextual menu. In the folder that appears, open Contents > Shared Support; you’ll see a disk image file called InstallESD.dmg. This dmg file is in essence an ISO file in s slightly different format. We'll need to convert it.
As another user noted, the Balena Etcher method works great on a Mac. On my 2021 MacBook Pro (with M1 Pro chip), I created a bootable OS X Snow Leopard USB drive using a .DMG of Snow Leopard I downloaded on the internet. And then installed Snow Leopard on a 2009 MacBook Pro without a hiccup.
Download macOS. The installer for OS X El Capitan downloads to your Downloads folder as a disk image named InstallMacOSX.dmg. To get the installer: Download using Safari, and open the disk image on a Mac that is compatible with OS X El Capitan. Inside the disk image is an installer named InstallMacOSX.pkg. It installs an app named "Install OS X ...
Press the Alt Key and hold it during the following steps. Click at the purchased tab. Scroll to OS X Mavericks. Click at the Download button. If you already have OS X Mavericks installed, you will be asked if you want to continue. Click continue. Now, you can release the Alt Key. To get the dmg file: 1.
Select to copy the OS X Install ESD\Packages folder in your Downloads folder. (This may take a while to complete.) When finished, the treeview and listview panes should appear as shown below. Close the TransMac window. Use the File Explorer to delete the OS X Install ESD folder and InstallAssistant.icns file in your Downloads folder. If you ...
Get macOS install files on a computer. Use the App store (recommended) Download 'Install macOS High Sierra.app' from App Store. Run installer, which downloads installer files, stop installer when it asks to restart. The files are now located in /macOS\ Install\ Data. Download files manually.
Yosemite & Mavericks: The the new InstallESD.dmg is not bootable. Therefore, we need to create a bootable install disk with BaseSystem.dmg. iesd -i /Applications/Install\ OS\ X\ Mavericks.app -o Mavericks.dmg -t BaseSystem. All Macs using Intel Haswell CPU (Macs after 2013) need to fake their CPU as Ivy Bridge in order to boot the virtual machine.
Apr 24, 2018 at 17:54. 1. Your simplest fix is going to be to take it to an Apple Store. They will push a new OS to it, usually for free. Torrenting an iso [actually you want a dmg] is a) very hit & miss, security-wise & b) requires another machine to burn to disk. USB is a no-no on a machine that old. – Tetsujin.
At one point, I was able to download and install Darwin OS from the Apple open-source website. I was able to download Darwin 8.0.1, which is the base for 10.4 (Mac OS X Tiger). If I remember correctly, it was around the time of Leopard (10.5). I cannot find the download link now, but it ran in single user mode, and I didn't continue on to ...