
The app is Next Loader and is from the same dev. (Solution 2) Replace the startup manager: You can replace the startup manager with an application (just like rEFIND) that will ask you to select the drive to boot onto without having to press the "Option/Alt" key when booting up your computer.

It also provides an easy way to enter and explore the EFI pre-boot environment. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. It will automatically reboot into the recovery-mode rEFIt is a boot menu and maintenance toolkit for EFI -based machines like the Intel Macs. Note: At some point, you will need to reboot into the recovery-mode.
#MAC STARTUP MANAGER HOW TO#
Here is a tutorial on how to install it: Boot Manager installation tutorial You can then select the drive that you want to reboot onto. If you use Startup Manager to select a startup disk, your Mac will start. Had a RAM problem (no longer recognized a pair of memory modules in a 2008 Mac Pro, El Capitan), and among the troubleshooting steps I had did a PRAM reset (press/hold ALT+CMD+P+R during boot) just to see if that would fix. I am in a predicament and hoping a Mac Ninja can give a hand. Once installed, it appears in the menu bar, just like the image below. Restoring your Mac OS is pretty simple even for those who have limited computer. Mac Pro 2008 No Startup Manager Access/Gray Screen at Boot.
#MAC STARTUP MANAGER MAC OS X#
The Utilities folder on the Mac OS X CD contains Startup Disk version 9.2, the control panel you use to select the startup disk for your computer. You just need the macOS application Boot Manager. Apple Startup 9.2.1 repairs problems that may occur when Mac OS 9.1 and Mac OS X are on the same partition and a version earlier than Startup 9.2 has been used.

There is no sound from the hard drive so wonder if its either dead or has no power. Launch CleanMyMac and click on the Extensions tab. I'm using Mountain Lion on a 13' Early 2011 MBP. Along with cleaning up your system, Mac optimization apps such as CleanMyMac also provide utilities that help the average user easily manage login items and launch agents, as well as startup items, in four easy steps. It doesn't ever see startup manager options. (Solution 1) Reboot directly onto a USB drive or another partition without the startup manager: Sorry I got that completely wrong it goes straight to Internet recovery when I boot holding either the option/alt key or command-r. So after some research, I found out how to boot in any drive without the startup manager. None of those key combinaisons would work for me. A few days ago, I had a problem to reboot on the recovery-mode (CMD+R) and to also to have access to the startup manager (Option/Alt).
