Can't boot into safe mode, can't option boot to choose startup drive. Changed keyboard (both Apple) with no joy. Screen stays black with no noise from hard drive. Can boot into recovery. Can anybody here suggest a course of action?
Thanks.
Mac Pro, macOS 15.3
A 2013 Mac Pro has no hard drive so it would be abnormal to hear anything from it. Flash storage can be audible but it is barely perceptible.
The course of action I recommend would be to attempt booting from another device. If you don't have one, then get a hard disk drive or SSD, boot Recovery, format that device, reinstall El Cap on it (or whatever Recovery will offer) and boot from it. Then, you can pursue replacing that Mac's internal storage if you think it's worthwhile.
Are those hard disk drives? If so they must be external since a 2013 Mac Pro has no "hard drives". It cannot even accommodate them since it uses proprietary PCIe-channel flash storage. In fact nothing internal to that model can be altered, other than RAM.
Since they may be contributing factors, to advance troubleshooting please disconnect those external hard disk drives.
Can anybody here suggest a course of action?
Please begin with correctly identifying the model you have.
Perhaps this will help: Identify your Mac Pro model - Apple Support
No hard drive? It’s a 2013 Mac Pro tower with four hard drives at the moment. All spinning things and no SSD’s. I want to option boot so I could try this Open Core Patcher malarkey. But as it doesn’t want to co-operate I thought safe booting would be a good way to check the system.
Flat Out, NO
Whoever is Voting in a certain manner seem to disagree and that is their choice
Technically, Apple does not support running Hacked versions of their software which out of interest. We Lease and do not own
This link is the Official agreement for macOS 15 Sequoia
I provide this one because that is what I run on 3 different Qualifing Apple Computers
No Doubt there are other Agreement from Apple for each and every version Apple Owns and we Lease
Stepping on the Toes of the Owner is not a good idea not even for 3 Trillion Dollars
https://www.apple.com/legal/sla/docs/macOSSequoia.pdf
I would follow the previous advise first
If we may ask
Can the computer boot safe mode while running " Mac Pro, macOS 15.3 " Sequoia ?
If I could option boot I would like to try the Open Core Patcher and install a later OS. Right now, El Capitan is as far as I can go.
Good thing you can not get to use OCLP
Any contributor in good standing would not offer advise or support for a " Hacked Version " of any versions of
OS X / macOS
Not even for grins?
Apologies, it's a Mac Pro (early 2008).
We lease?!?
Can't boot into safe mode in macOS El Capitan on 2013 Mac Pro
