Jump to content
  • Announcements

    • Allan

      Forum Rules   04/13/2018

      Hello folks! As some things are being fixed, we'll keep you updated. Per hour the Forum Rules don't have a dedicated "Tab", so here is the place that we have our Rules back. New Users Lounge > [READ] - InsanelyMac Forum Rules - The InsanelyMac Staff Team. 
Sign in to follow this  

Solution: Macbook will not boot from USB

1 post in this topic

Recommended Posts

Certain Macs seem to be fussier than others when it comes to booting from USB. A solution I've found that works on all Intel Macs as well as the [few] G4s I've encountered is as follows - assuming you have a *valid* USB boot volume that doesn't work on specific/problematic macs but does on others:


- connect the USB drive

- power the mac on and hold option key

- a boot menu will appear without the USB drive listed as a bootable volume

- disconnect/reconnect the USB drive, whenever possible to a different USB port

- the USB drive should be re-detected and the new boot volume should appear as an option

(if it doesn't appear there's a very good chance the volume isn't partitioned/blessed correctly)

- select the new boot volume and hit enter


Found it very frustrating that my OSX recover/install thumb drive worked 100% of the time on both my Mac Pro and Macbook Pro and 0% of the time on my wife's macbook and friend's iMac G4. This worked in both cases.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.