Bootear mac os x lion desde usb

Make a Bootable Mac OS X 10.7 Lion Installer from a USB Flash Drive
Your Answer First step is to erase the non volatile ram used to be called PRAM by holding Command-Option-P-R and listen for two boot chimes in a row then release the keys and try the install. For an erase install, you need to boot to the installer and then choose Disk Utility from the Utilities menu and literally erase the drive. I would physically disconnect my backup if any before doing the erase.

First: Prepare Your USB Drive

Yes RayofCommand, after you release alt-cmd-P-R the machine goes on booting from whatever boot partition was selected, as usual. I don't think a white mini will boot from USB, but you could connect it to another Mac thru a Firewire cable, boot this white mini holding the T key "target disk mode" : the mini's internal hard disk will be mounted on the other mac's desktop.

The Problem

From there you can wipe the disk with Disk Utility. After that, the problem is installing an old version os OS X on the disk Then start the mini with alt pressed and boot from this partition, install on the other bigger partition. Hope this helps. Home Questions Tags Users Unanswered.

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RayofCommand RayofCommand 1 1 gold badge 3 3 silver badges 9 9 bronze badges. Is this an erase and install situation or do you want to install over top of the data and programs?

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Would like to erase first. I resetted an old mac book pro last week without issues but date update haha. Have you considered taking the harddisc out and partitioning and re-installing via another mac They are both the same When releasing the command option p r combination it will boot me straight to the login screen.

Is this expected? And then boot using command r and hope to get to the disk utility option?

Use Mac Linux USB Loader

How to Create a Bootable Mac OS X Lion Installation USB Drive. We're going to er at lave en bootable disk (enten dvd eller usb-stik). These instructions will guide you to quickly make a bootable USB installation media for Mac OS X on Windows, this works with Yosemite and.

No chance for me to get to the utility menu. It also lets you re-install Lion, if necessary. But if the drive the recovery partition is on goes bad, you're out of luck.

How to Boot a Linux Live USB Drive on Your Mac

For this and many other reasons, we're going to show you how to create a bootable version of the OS X Lion installer. Sometimes referred to as a clean install, this process lets you install Lion on a disk that is empty or has no pre-existing OS installed on it. In this article, we're going to use the bootable OS X install DVD you created to install Lion on a disk you will erase as part of the installation process. Before we begin, remember that you will be erasing one of your volumes to use as the target for the Lion install.

How to create a bootable USB to install OS X

You should have a complete, current backup of that drive, because all data on the drive will be lost. As soon as your Mac restarts, hold down the C key.

How to mount OS X Lion to a flash drive/hard drive and Clean Install Mac OS X Lion

This will force your Mac to boot from the DVD. The boot process will take a long time, so be patient. Be sure to turn on all monitors that are connected to your Mac because in some multi-monitor setups, the main display may not be the default monitor used by the OS X Lion installer.

Disk Utility will open and display a list of connected drives. This process can take some time, so be patient. Select the disk you wish to be the target for your OS X Lion install. Remember that we're going to erase this disk, so if you haven't performed a current backup of the data on the disk, stop and do it now.

Prepare the USB stick

At the welcome screen, choose your country and keyboard layout. That's just the OS utilities menu. Choose to "Create a virtual hard disk now", then click the create button. By continuing to browse the site, closing this banner, scrolling this webpage, or clicking a link, you agree to these cookies. Thanks for the tip, I just downloaded the app from torrent. So download Lion onto a Snow Leopard Mac, make the bootable install disk, then install on a Mac currently running Leopard?

If you have a current backup, then you're ready to proceed. Select the disk you wish to erase. A drop-down sheet will appear, asking you to confirm that you wish to erase the target disk. Click Erase.

  • Install OS X Lion Using a Bootable DVD.
  • Install OS X Lion Using a Bootable DVD?
  • Things to know before proceeding;

Disk Utility will erase the drive. A drop-down sheet will appear, asking if you agree to the license terms. Click Agree. A list of disks will appear; select the disk you wish to install OS X Lion on. This should be the same disk you erased earlier. Click the Install button.

The Lion installer will copy the necessary files to the target disk.