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macOS 11 Big Sur on Unsupported Macs Thread

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Vital L

Vital L

macrumors member
Jun 22, 2020
49
90
macOS Big Sur 11 beta 5 (20A5354i) is out
 

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startergo

startergo

macrumors 603
Sep 20, 2018
5,021
2,283
viettanium said:
43 to 54, a huge of versions
Click to expand...
Yes finally:
Code: 
sudo /Applications/macadmin-scripts-master/installinstallmacos.py --seedprogram DeveloperSeed --build 20A5354i       

installinstallmacos.py - get macOS installers from the Apple software catalog

This Mac:

OS Version       : 11.0
Build ID         : 20A5343i

 #  ProductID       Version    Build    Post Date   Title                         
 1  001-15219       10.15.5    19F2200  2020-06-15  macOS Catalina                 
 2  001-04366       10.15.4    19E2269  2020-05-04  macOS Catalina                 
 3  041-91758       10.13.6    17G66    2019-10-19  macOS High Sierra             
 4  041-88800       10.14.4    18E2034  2019-10-23  macOS Mojave                   
 5  061-26589       10.14.6    18G103   2019-10-14  macOS Mojave                   
 6  001-36735       10.15.6    19G2006  2020-08-06  macOS Catalina                 
 7  061-94403       10.15.6    19G73    2020-07-15  macOS Catalina                 
 8  001-36806       11.0       20A5354i 2020-08-19  macOS Big Sur Beta             

Build 20A5354i available. Downloading #8...

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1871k  100 1871k    0     0  1310k      0  0:00:01  0:00:01 --:--:-- 1310k
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 2571k  100 2571k    0     0  2099k      0  0:00:01  0:00:01 --:--:-- 2099k
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1274k  100 1274k    0     0  1037k      0  0:00:01  0:00:01 --:--:-- 1037k
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0 11.3G    0 28.7M    0     0  1492k      0  2:12:18  0:00:19  2:11:59  998k
 
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V

viettanium

macrumors 6502
Sep 3, 2010
450
361
Vietnam
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EdGlassgow

EdGlassgow

macrumors member
Jun 9, 2019
60
83
Downloaded Beta 5, prepared a USB using MicroPatcher 0.1.0 and attempted an install on my MacPro 5,1 on a freshly formatted SSD. Unfortunately, I have bootlooping. I did notice something this go around, however (I was paying better attention to the whole process). The install process proceeds until about the 13 minute left mark and the machine reboots. I think this is normal and I'll check that wen I get home where I have a newer MacBook Pro that is a supported machine. It is at this reboot that it starts to load, the bar goes about 1/4 of the way across the screen and then it reboots.
 
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EdGlassgow

EdGlassgow

macrumors member
Jun 9, 2019
60
83
thatsmeonlyme said:
DP 5 installed on cMP 5.1 --> working , no problems (Barry's micropatcher)
DP 5 installed on MBP 8.1 --> working , no problems no Airdrop, changed WIFI Card to 2012 MBP 9,1 Version. Patch needed.
Click to expand...

Makes no sense to me... I have two 5,1s and I bootloop on both when trying to install using MicroPatcher.
 
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nandor690

nandor690

macrumors 6502
Jun 25, 2011
374
221
MacStory3 said:
UPDATE #4 on my patcher:
-I started working on my app for the patcher. I decided to use AppleScript for the time being as it'll be quicker. Once the patcher is released I will make a SwiftUI app with Xcode.
-I messed a few things up :( but I fixed them :) !!!

-I am on pause right now because something bad happened to my phone: When I installed iOS 13.6.1, the install progress bar got stuck for like 3 hours, and then rebooted into iOS recovery. I know that I can use Finder to restore, but I don't want to use third-party apps as I don't want to pay. Unfortunately, my WiFi has been really sucky in the past two weeks because of a big storm that cut off a lot of signal, so whenever I try to restore, I get an error at some point that the connection was lost and such and such. My router's ethernet port is taken by a server that would be really difficult to disconnect without losing data. I know there are forums here on iOS but I want to mention it here, as I won't continue on my patcher until my phone is fixed. (I have a lot of really important files and app there that are fortunately backed up but will need to access soon...)
Click to expand...
Download the ipsw and reinstall that way. That way you won’t need to rely on a wifi connection while you’re restoring
 
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maxsp97

maxsp97

macrumors regular
Jul 23, 2019
112
189
Some where in LA
EdGlassgow said:
Makes no sense to me... I have two 5,1s and I bootloop on both when trying to install using MicroPatcher.
Click to expand...
cMP 5,1 year?
My cMP mid 2012 5,1 work fine accept WIFI.
After WIFI/BT 4.2 upgraded WIFI/BT/AirDrop and Handoff are working, doesn't matter which Barry micropatcher used.
All you need to do step 1 to 8, that all.
 
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David dongfox

David dongfox

macrumors member
Jul 26, 2020
75
59
rumormiller said:
Updating Big Sur Volume on late 2013 iMac

Just hit a snag when trying to update my iMac late 2013 from beta 2 to beta 3. Previously I'd done a clean install from Catalina so didn't see this problem. Catalina doesn't see my Big Sur volume it says it has unsupported disk features. So when running the Big Sur Beta installer on Catalina it doesn't see my Big Sur volume. Big Sur is on an external USB 3 SSD drive. I'm gonna have to make a usb thumb drive installer and patch it with https://github.com/barrykn/big-sur-micropatcher

Spoiler alert: it worked ?

Using Big Sur micro patcher

Step 1: Obtain a copy of the macOS Big Sur Developer Preview and use createinstallmedia as usual to create a bootable USB stick with the installer and recovery environment, as you would on a supported Mac. This patcher is easier to use if the installer USB stick is not renamed after createinstallmedia is used, but it can still work if the USB stick has been renamed (see next step).

Use the 'createinstallmedia' command in Terminal
  1. Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

To see the names of your volumes in terminal type:

ls /Volumes

My thumb drive volume name is Kingston

sudo /Applications/Install\ macOS\ Big\ Sur\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Kingston

Ready to start.

To continue we need to erase the volume at /Volumes/Kingston.

If you wish to continue type (Y) then press return: y

Erasing disk: 0%... 10%... 20%... 30%... 100%

Copying to disk: 0%... 10%... 20%... 30%... 40%... 50%... 60%... 70%... 80%... 90%... 100%

Making disk bootable...

Copying boot files...

Install media now available at "/Volumes/Install macOS Big Sur Beta"

Step 2: Download this micropatcher, then run micropatcher.sh to patch the USB stick. (If you are viewing this on GitHub, and you probably are, then click "Clone" then "Download ZIP".) If the USB stick has been renamed or micropatcher.sh is otherwise unable to find the USB stick, then try specifying the pathname of the USB stick to micropatcher.sh. The easiest way to do that is to open a Terminal window, drag and drop micropatcher.sh into the Terminal window, go back to Finder, choose Computer from the Go menu, drag and drop the USB stick into the Terminal window, then press Return.

~/Downloads/big-sur-micropatcher-main/micropatcher.sh /Volumes/Install\ macOS\ Big\ Sur\ Beta

Step 3: Boot from the USB stick. Hold the option key on boot. Select install macOS Big Sur beta.

View attachment 940107

Step 4: Open Terminal (in the Utilities menu), type cmd and equals key to make the text larger if required then run

/Volumes/Image\ Volume/set-vars.sh

This script will change boot-args and csrutil settings as needed, and also set things up so the Installer will run properly. Don't forget that tab completion is your friend! You can type /V<tab>/I<tab>/se<tab> at the command prompt -- that's much less typing! (Run /Volumes/Image\ Volume/set-vars.sh -v instead if you want verbose boot, which can be very useful for troubleshooting.)

View attachment 940113

Step 5: Quit Terminal then start the Installer as you would on a supported Mac.

View attachment 940110

View attachment 940111

View attachment 940108

Let the installer finish and that’s all for a late 2013 iMac. Took about 40mins.

View attachment 940117

All done.
Click to expand...
/Volumes/Image\ Volume/set-vars.sh is not working. i am trying to install beta 5. please help.
 
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EdGlassgow

EdGlassgow

macrumors member
Jun 9, 2019
60
83
maxsp97 said:
cMP 5,1 year?
My cMP mid 2012 5,1 work fine accept WIFI.
After WIFI/BT 4.2 upgraded WIFI/BT/AirDrop and Handoff are working, doesn't matter which Barry micropatcher used.
All you need to do step 1 to 8, that all.
Click to expand...

Both are 2010 12-core...

I take issue with the "All you need to do step 1 to 8, that all". I have other machines that I use MicroPatcher with and the installations proceed fine and I have functional installs of Big Sur running. I am well versed in exactly how to use the utility. This is specific the the MacPros and it is driving me crazy.

Will others with MacPro 5,1 (especially the 12-core varieties) let me know of your success or lack of?
 
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