macOS 10.15 Catalina on Unsupported Macs

[TimothyR734]

Thanks, but where do I download a new copy of Catalina when I'm on an unsupported mac?

Go to page 1 to find the Dosdude1’s Catalina Patcher after you download a copy of Catalina you will need to make a new installer usb

 

[ktimamue]

Go to page 1 to find the Dosdude1’s Catalina Patcher after you download a copy of Catalina you will need to make a new installer usb

I understand about the patcher and making a bootable drive, I just don't know where to download the new version of 'Mac OS Catalina' when I'm on an unsupported mac?

 

[TimothyR734]

within the Catalina Patcher when you open the Catalina Patcher you will have 2 options browse for a copy or download a copy

 

[ktimamue]

within the Catalina Patcher when you open the Catalina Patcher you will have 2 options browse for a copy or download a copy

I tried that, it doesn't work. The 'download' option throws CatalogURL error

 

[TimothyR734]

what version of macOS Catalina are you on

 

[ktimamue]

I'm on High Sierra

 

[TimothyR734]

You can try this unzip then put this script in your terminal it will check for updates and see if 10.15.3 shows up ten download it it should be in your downloads folder but not sure as I use this script for dev beta updates
[automerge]1584552106[/automerge]

I'm on High Sierra

is your ssd/hdd formatted APFS which Catalina requires

 

[ktimamue]

I tried it, unfortunately it only shows what's available through my standard app store updates.

 

[TimothyR734]

I tried it, unfortunately it only shows what's available through my standard app store updates.

the only thing I could suggest is try going to the macOS Mojave for unsupported Macs and download the Mojave patcher and then down try downloading a copy of Mojave and make a Mojave usb patcher and upgrade that way as Mojave supports both APFS and HFS-Extended-Journaled https://forums.macrumors.com/threads/macos-10-14-mojave-on-unsupported-macs-thread.2121473/

 

[jackluke]

10.15.4 beta 6 is available, @ASentientBot if you want you could try the catalinaswufix5amfi.command (in combination with Sierra's swupatch.sh) , this simply will work on apfs firmware machines, it includes also your added tips with "return true" for OTA machine whitelisting and your recent "disable library validation script", I guess using this auto-installer method with its apple post-scripts is more effective than "pkgutil expand" and "cp -a".

 

[0134168]

Guys, I need advice. My boot drive is Sandisk 120GB SSD SATA and I want to change it with a bigger size (250GB) of SATA Samsung SSD. If I clone my unsupported iMac APFS Boot Drive with CarbonCopy Cloner will it work or I must clean install?

Will work like a charm.

 

[ktimamue]

the only thing I could suggest is try going to the macOS Mojave for unsupported Macs and download the Mojave patcher and then down try downloading a copy of Mojave and make a Mojave usb patcher and upgrade that way as Mojave supports both APFS and HFS-Extended-Journaled https://forums.macrumors.com/threads/macos-10-14-mojave-on-unsupported-macs-thread.2121473/

Mojave patcher doesn't have the download option, and I don't know where to find Mojave installer for now.

But I just found and downloaded the new version of catalina (10.15.3)

Tried to create a bootable drive and get this error:
"
Mounting BaseSystem.dmg...

hdiutil: attach failed - Read-only file system
"

My flash drive is formatted as Mac OS Extended (Journaled), and it says Writable:YES

 

[TimothyR734]

when you open the Mojave Patcher open the tools in your menubar and the option to download Mojave is there

 

[ktimamue]

Thanks, this Mojave download is working. So you think that if I manage to install Mojave first I've got a better chance of Catalina patch working?

 

[TimothyR734]

Thanks, this Mojave download is working. So you think that if I manage to install Mojave first I've got a better chance of Catalina patch working?

It depends your internal HDD/SSD needs to be formatted APFS and for me when I install a new macOS version I do a clean install you can check and try the Catalina Patcher after you install Mojave and see if it downloads Catalina 10.15.3

 

[ktimamue]

I am APFS formatted already. Fingers crossed

 

[TimothyR734]

make sure you download macOS 10.15.3 not macOS 10.15.4 Dev beta 6 as it is a bit buggy 10.15.3 is stable

 

[0134168]

Mojave patcher doesn't have the download option, and I don't know where to find Mojave installer for now.

But I just found and downloaded the new version of catalina (10.15.3)

Tried to create a bootable drive and get this error:
"
Mounting BaseSystem.dmg...

hdiutil: attach failed - Read-only file system
"

My flash drive is formatted as Mac OS Extended (Journaled), and it says Writable:YES

Yes it has it.

 

[Dalesrandy]

within the Catalina Patcher when you open the Catalina Patcher you will have 2 options browse for a copy or download a copy

Hello! I’ve gotten as far as I can.. in need of someone who knows what their doing. So I created the bootable drive, put this into terminal (diskutil unmountDisk disk0 diskutil unmountDisk disk1 gpt destroy /dev/disk0 gpt destroy /dev/disk1 diskutil appleRAID create stripe Storage JHFS+ disk0 disk1 diskutil unmountDisk disk2 gpt create disk2 gpt add -t hfs disk2), formatted my disk2s1 to APFS, went to install Catalina onto the new APFS drive (RAID0), restarted and said it wasn’t able to be installed, so I unplugged the bootable drive and restarted as the directions said, but then it was stuck at the same spot for over an hour. Went to restart it again and now it says “the copy of the install macOS Catalina application is damaged, and can’t be used to install MacOS. PLEASE HELP!! (WILL DONATE TO WHOMEVER GET MY SYSTEM GOING!) Included the link to the source of my directions*

How to install Mac os Catalina on RAID 0 | Rafał Leśniak

At the time of output mac os 10.13 was removed support for boot from RAID 0 drives.

lesniakrafal.com

 

[jackluke]

OTA update installed through the catalinaswufix5amfi.command without issues, I made this post mainly to underline that most probably the 10.15.4 beta 6 build 19E264b should match with the next apple public release since the "Beta" naming is not showed but only the build number (if clicked on it, otherwise "About this Mac" showed simply 10.15.4 ) exactly as a final release.

@ASentientBot 4b5 updated output wrappers worked correctly also in this 4b6 release in fixing the Displays prefpane.

 

[indiawallah]

Catalina Beta 6 installed easily using the catalinaswufix5amfi.command in terminal after 10% or more download of the OTA update. On reboot installed the usual post instal patches for my mid 2009 MacBook Pro. As before did the manual method for repairing the blank display panels ( see post 8870). All working exactly the same now as Cat Beta 5.

 

[TimothyR734]

I tried installing 10.15.4 Dev Beta 6 and no luck I knew I should not have applied the Legacy Support Compatiblilty patch in the post install patches the progress bar would not move more than halfway then I rebooted and just applied the Legacy Support Compatibility patch all I go was a white screen so I tried just installing the Legacy Video Patch and the AMD Metal emulator patch from Mojave the progress bar reached then end but no desktop so reinstalled 10.15.3

 

[chris1111]

update no issue here
thanks @ASentientBot for Legacy Video patch working good again

 

[TimothyR734]

I also noticed when I did command -v on boot up after installing 10.15.4 Dev Beta 6 it did say nvdastartup kext was missing or corrupted

 

[JohnM109R]

Hi guys new here sorry for the long post but I need some advice Please

This is a early 2011 Mac Book Pro 17''
and I've search hi & low on what to do first

do I run the MacBook Pro dGPU Disabler first before going through the whole process
of running the Catalina Patcher

Please. any advice would be appreciated

Hardware Overview:

Model Name: MacBook Pro


Model Identifier: MacBookPro8,3


Processor Name: Intel Core i7


Processor Speed: 2.2 GHz


Number of Processors: 1


Total Number of Cores: 4


L2 Cache (per Core): 256 KB


L3 Cache: 6 MB


Memory: 16 GB


Boot ROM Version: 87.0.0.0.0


SMC Version (system): 1.70f6


Serial Number (system):


Hardware UUID:


Sudden Motion Sensor:


State: Enable


Intel HD Graphics 3000



Chipset Model: Intel HD Graphics 3000


Type: GPU


Bus: Built-In


VRAM (Dynamic, Max): 512 MB


Vendor: Intel


Device ID: 0x0126


Revision ID: 0x0009


Automatic Graphics Switching: Supported


gMux Version: 1.9.24


Displays:


Color LCD:


Display Type: LCD


Resolution: 1920 x 1200 (WUXGA - Widescreen Ultra eXtended Graphics Array)


UI Looks like: 1920 x 1200


Framebuffer Depth: 24-Bit Color (ARGB8888)


Main Display: Yes


Mirror: Off


Online: Yes


Rotation: Supported


Automatically Adjust Brightness: No


AMD Radeon HD 6750M:

Chipset Model: AMD Radeon HD 6750M


Type: GPU


Bus: PCIe


PCIe Lane Width: x8


VRAM (Dynamic, Max): 1024 MB


Vendor: AMD (0x1002)


Device ID: 0x6741


Revision ID: 0x0000


ROM Revision: 113-C0170L-573


VBIOS Version: 113-C0170R-006


EFI Driver Version: 01.00.573


Automatic Graphics Switching: Supported


gMux Version: 1.9.24