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cap_walker_666

macrumors member
Original poster
Aug 3, 2020
71
5
Some machines, like mine, are finicky. I've tried disk drill, disk creator and Apple's method. It was tricky, some machines accepted the install usb as disk drill, etc. made. Every one accepted the original snow leopard installed. I was going to choose one of those USBs as startup drive, then I couldn't see it listed as something to boot to. That's when I understood and checked the theory. I found the DMG file I needed to install and then used Disk Utility to restore to a USB.
 

chrfr

macrumors G5
Jul 11, 2009
13,715
7,284
Some machines, like mine, are finicky. I've tried disk drill, disk creator and Apple's method. It was tricky, some machines accepted the install usb as disk drill, etc. made. Every one accepted the original snow leopard installed. I was going to choose one of those USBs as startup drive, then I couldn't see it listed as something to boot to. That's when I understood and checked the theory. I found the DMG file I needed to install and then used Disk Utility to restore to a USB.
Please don’t keep making new threads when you’re trying to solve the same problem in all of them. You won’t be able to boot from an El Capitan installer on a Mac Pro 1,1 without modifying the installation.
 

cap_walker_666

macrumors member
Original poster
Aug 3, 2020
71
5
Please don’t keep making new threads when you’re trying to solve the same problem in all of them. You won’t be able to boot from an El Capitan installer on a Mac Pro 1,1 without modifying the installation.


Right before retirement I sysoped an international board for 11 years. I picked up a thing or two. The first was never assume. Don't assume the emphasis is on El Cap not boot. Of course the topic of creating a bootable USB would be best posted outside a thread about a Mac Pro.

And that is exactly why it's here. I've spent way too much time on trying to get any OS bootable install. The key seems to be using Disk Utility to restore an image (DMG). That boots and is why my Snow Leopard USB works when nothing else has.
 

chrfr

macrumors G5
Jul 11, 2009
13,715
7,284
Right before retirement I sysoped an international board for 11 years. I picked up a thing or two. The first was never assume. Don't assume the emphasis is on El Cap not boot. Of course the topic of creating a bootable USB would be best posted outside a thread about a Mac Pro.

And that is exactly why it's here. I've spent way too much time on trying to get any OS bootable install. The key seems to be using Disk Utility to restore an image (DMG). That boots and is why my Snow Leopard USB works when nothing else has.
no, the Snow Leopard USB drive will boot a Mac Pro 1,1 because that OS is supported on that computer. El Capitan is not supported on that model and so the USB drive will not boot that computer.
 

cap_walker_666

macrumors member
Original poster
Aug 3, 2020
71
5
We seem to disagree a lot. By bootable (don't mind the version OS) it means that under System Preferences > Startup Disk it will show. No drive created with CREATEINSTALLMEDIA will pass that test. So I ask why. There's an article from TechRepublic dealing with it. To make a bootable USB for LION (which IS supported) you dig down into the installer app for the boot loader. It's an EFI boot loader that makes it truly bootable. In LION there's a DMG file, INSTALLESD which can be restored to a USB which makes it bootable.

See finding a way to make a truly bootable USB is to make one for each of my Macs. In case the drive goes down zI can get to it through the USB. And now I know the process. A very educational excursion.

The boards I sysoped for were Borland and Novell.
 

chrfr

macrumors G5
Jul 11, 2009
13,715
7,284
We seem to disagree a lot. By bootable (don't mind the version OS) it means that under System Preferences > Startup Disk it will show. No drive created with CREATEINSTALLMEDIA will pass that test.
Whether it shows in the Startup Disk System Preference doesn't matter. Put the bootable USB drive in a port, and restart the computer while holding the option key and keep holding option until the boot picker appears. Valid install disks will show as an option there. This is a change that Apple presumably had a reason to make some time ago.
 

cap_walker_666

macrumors member
Original poster
Aug 3, 2020
71
5
Whether it shows in the Startup Disk System Preference doesn't matter. Put the bootable USB drive in a port, and restart the computer while holding the option key and keep holding option until the boot picker appears. Valid install disks will show as an option there. This is a change that Apple presumably had a reason to make some time ago.
There seems to be an attitude in all the posts to me that I don't know WTF I'm doing rather than an attitude of "this is what's happening to him". I'll admit to ignorance on THIS issue, which I'm working to change. I won't list of the areas I'm NOT ignorant in.

When you say "it doesn't matter" you should say in the installs I've done" because in all the installs I've done HERE it takes a bootloaader file, EFI, before my installs work. Using startup disk is simply a quick way too determine that.

I'm glad your installs are easier than mine. However all this no longer matters because I found the answer for ME.
 

Macschrauber

macrumors 68030
Dec 27, 2015
2,981
1,487
Germany
@cap_walker_666

you give barely no information what you do with what os and what machine.

also you name machines wrong (Mac Pro 2008 3.0) to confusion.

as you claim to be experienced in tech terms you will understand that noone will give precise information without necessary tech details.
 
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KeesMacPro

macrumors 65816
Nov 7, 2019
1,453
596
There seems to be an attitude in all the posts to me that I don't know WTF I'm doing rather than an attitude of "this is what's happening to him". I'll admit to ignorance on THIS issue, which I'm working to change. I won't list of the areas I'm NOT ignorant in.

When you say "it doesn't matter" you should say in the installs I've done" because in all the installs I've done HERE it takes a bootloaader file, EFI, before my installs work. Using startup disk is simply a quick way too determine that.

I'm glad your installs are easier than mine. However all this no longer matters because I found the answer for ME.

I find it impossible to understand the content of your posts.

Threads allover the place, essentially about the same topic/issue without providing relevant and correct data.
Note that people here dedicate their spare time to provide adequate info with the best intentions: to help the Original Poster.
This is voluntary.
Correcting frases by others who helped you, doesnt look like a sign of gratefulness to me...

i'm getting the impression that you're interpretating all help in a personal way/ on a personal level.
I can only speak for myself, but i'm convinced that this Forum is about technical issues : clear, objective and helpful .

So as far as i'm concerned to quote your post : "this is what's happening to him" could have been refrased like e.g. "this is what's happening to his Mac" .
Just a thought....

I'll leave it open to the reader to interpretate the content of your posts.
 

cap_walker_666

macrumors member
Original poster
Aug 3, 2020
71
5
I find it impossible to understand the content of your posts.

Threads allover the place, essentially about the same topic/issue without providing relevant and correct data.
Note that people here dedicate their spare time to provide adequate info with the best intentions: to help the Original Poster.
This is voluntary.
Correcting frases by others who helped you, doesnt look like a sign of gratefulness to me...

i'm getting the impression that you're interpretating all help in a personal way/ on a personal level.
I can only speak for myself, but i'm convinced that this Forum is about technical issues : clear, objective and helpful .

So as far as i'm concerned to quote your post : "this is what's happening to him" could have been refrased like e.g. "this is what's happening to his Mac" .
Just a thought....

I'll leave it open to the reader to interpretate the content of your posts.
If what you are searching for is more objective facts:

- "content of posts" Have you asked ?
- "threads all over the place" I have begun threads in multiple subjects, but all within the same "forum"
- "this is voluntary" I understand as I did the exact same for 11+ years for software companies needing user support. My best week was 120+ answers. Yes I understand, I understand how it's supposed to be done because we net with our companies that sponsored us each year for feedback.
- "gratefulness" I'm here to learn and while I'm here I deserve the respect a forum user should get. So far the gentleman who pointed me to the videos has given me the best answers . He gave an answer as well as how to follow up on the main point of the question.
- "personal way" Certainly I could say "this Mac". I have 6 here that I test on an have worked on more, so I'm saying "in my experience". I could change it to "this Mac" if that's better here. Personal ? I'm grateful for the facts. I'm not grateful for some of the ways they are delivered. I follow forum guidelines. I respond to questions also.
- "interpretate" == "interpret"
 
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