Choose a boot drive mac how to#
Choose a boot drive mac mac os x#

If all else fails, try a different name-brand flash drive of at least 8 gigabytes or greater in size.

Choose a boot drive mac mac os x#

Some users have problems creating a successful bootable USB flash drive because they attempt to follow Apple's instructions on older versions of Mac OS X that require Disk Utility, not the Terminal window 'createinstallmedia' command, to create a bootable USB flash drive. Make sure it is the external drive and not the Mac's internal drive, as this is the last chance to make sure.

If you still can't boot from the USB flash drive, verify that you created the Mac OS installer on the USB flash drive while working in the same (or as close to) current Mac OS as you intend to write to the USB flash drive. Select the drive you want to use for the bootable external storage. If you can't see it, reset the PRAM and try again. On the machine you wish to install on, you can hold down the Option (ALT) key to select the boot drive, select your installer.

Eject the drive if you're ready to remove the USB Drive and install.

The process is fairly painless and, if you have a bit of time and. Deselect the check box ignore ownership CD/DVD drives are disappearing from computers, leaving USB storage as the only option when re-installing an operating system.When the PC is powered on, it emits a series of beeps and indicates that the BIOS settings have changed and need to be reconfigured. A technician is troubleshooting a PC that will not boot. Click the padlock icon to unlock administrator options. IT Essentials (ITE v5.0 & v5.02) Chapter 3 Exam Answers 100 2019.In the info window, expand the Sharing & Permissions: section.Mounting the USB flash drive on the desktop, right click and select 'Get Info'.The 'missing step', after ensuring the USB flash drive is formatted correctly, is to ignore ownership For this reason, you will need to enable it before/after completing the process described by Apple, MacWorld and others using the 'createinstallmedia' command in the Terminal window. Complicating matters, the USB flash drive default may disable boot support.

Choose a boot drive mac how to#

Most of the guides, including Apple's own support doc on how to create a bootable Mac OS installer on USB - as of this date - fail to mention the ownership step.Р”Р‡irst and foremost, the USB flash drive must support ownership functionality. It may be that boot-up from the USB flash drive is 'prohibited' because your USB flash drive requires adjustment to the 'ownership' settings.