Just check the 1st post on Installing OpenCore on your iMac.
Under More Information, @Ausdauersportler has a tailored guide of "Using Catalina Loader on an iMac" which showed how to rebuild/relink the prelinked Kernel in section 10.
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macOS 10.15 Catalina on Unsupported Macs
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Under More Information, @Ausdauersportler has a tailored guide of "Using Catalina Loader on an iMac" which showed how to rebuild/relink the prelinked Kernel in section 10.
Software RAID disk information is stored in the disk partitions used for the RAID, not in the OS, so it will continue to work when using newer (or even older) macOS versions. All you have to do is make sure all partitions used in the RAID are connected. If one of the partitions is not connected, it will not mount.Hi guys! I have a MacPro3,1 machine with Sierra 10.12.6 installed on a SSD and a software RAID 0 (for data only) with two WD Black drives created with Disk utility long ago (in Snow Leopard IIRC). Works fine till this day.
If I upgrade my SSD to Catalina will this RAID still work? Do I risk an array breakdown or data loss (I do have a backup). Thanks!
View attachment 1692266 View attachment 1692267
Hello,
certainly, I’ve already tried to use SwitchResX and DisableMonitor; when this software is installed it allows me to disable “ghost” display – but it’s still present in the device list. I would like to fundamentally address the issue.
I haven’t any external display at hand, but I've been thinking on it.
Any other ideas will be highly appreciated.
Thank you.
Thanks a lot! But the problem persists.
There was no Broadcom patch visible in Patch Updater, so I downloaded it manually from dosdude1.com. Then I mounted the / as read-write and applied all the commands from install.sh one by one as I didn't trust the script truly worked or not. Looks like I replaced all the kext files correctly. After reboot, I still can't connect to any network. The only improvement I see that WIFI menu now always sees all the networks, they used to disappear before.
Regarding 'Automatic Join' it does not look like a root cause. I see a dozen of networks around and I can not connect to any of them, mine and not mine. With an attempt to connect to any I see "The network could not be found"
When all else fails try running Onyx/Maintenance or the stand-alone Maintenance by Titanium Software, here - https://www.titanium-software.fr/download/1015/Maintenance.dmg Default settings are fine. You have been installing the appropriate patches from the USB installer w/v.1.4.4 used to install 10.15.7?
Thanks a lot again! It didn't work, but the problem is solved in the end.
Just for everybody, who found this forum thread and experiences the problem with WIFI and the error "The network could not be found" the solution that worked for me is to remove network settings plist files. The solution is found here https://howchoo.com/mac/reset-network-settings-macos
On MBP5,2, updated 10.15.7 supplemental (19H15) with the security update (19H114).
Updated OTA with jackluke's CatalinaOTAswufix.app:
- first SoftwareUpdateFix to see the update under SystemSettings->Software Update
- then while loading, OTA update fix; start installation when loading finished
Let installation complete, then boot USB bootable installer made previously with dosdude1's patcher 1.4.4 from 19H15, to apply the post-install patches proposed for MBP5,2.
Running smoothly.
Thanks to jackluke and dosdude1!
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Thanks to jackluke and dosdude1 seconded.
Additional step - Since this Mini3,1 is "barefoot" (unpatched ROM) had to employ @jackluke's OpenCoreAPFSloader3 booted from USB to see the second part of the Security Update to complete the installation. Works perfectly.
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Hi @dosdude1 thx for your great tool, may I ask is there an easy way to make dual boot Catalina + Catalina on MacbookPro 5.2 (2009) 17" ? I tried two volumes in one container, two separated containers but no luck, still booting last installed Catalina... Will APFS Boot Prefpane make sense for me? Thank you.
Can’t see the second stage even with OpenCoreAPFSloader. I don’t get it why?
Here is my process which part am I doing wrong;
First click SoftwareUpdateFix then
Open SystemSettings->Software Update and start downloading the Security Update
Approximately after 600MB Download click to OTA update fix;
When finish the download click restart
After chime press Option key choosing open core bootloader but no second stage there. So which part is wrong? Thank you.
Only OpenCoreAPFSloader3 can see the installer. Other versions lack necessary support. Here's the other Mini3,1 completed.
The installer second-stage was item C on the list. YMMV
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Are you mentioning this version, right?
Release USBOpenCoreAPFSloader3 · jacklukem/USBOpenCoreAPFSloader
This version is updated and based on OpenCore 0.5.9 which added the function to block the Apple EFI Firmware updates, useful in case of spoofing to a supported Catalina Mac without issuing any unwa...
github.com
Thank you. But no matter what I cant see the second stage. When I click to install now it directly asking me to restart Apple Logo is coming with the loading bar and restart I am pressing the Option key and choosing APFSloader but no second stage.
https://github.com/jacklukem/USBOpe...s/download/3.0/USBOpenCoreAPFSloader3.app.zip works, perfectly. Attached is the version used to build the USB which works.
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Hi guys
over the weekend I talked about my problem with the install not working on my 2008 Macbook unibody. I kept getting the "?". no matter what i tried to do, it wouldn't work.
So here's my question: If i put a HDD or SSD that had Cat already installed would it work?
over the weekend I talked about my problem with the install not working on my 2008 Macbook unibody. I kept getting the "?". no matter what i tried to do, it wouldn't work.
So here's my question: If i put a HDD or SSD that had Cat already installed would it work?
Hi guys, I'm trying to create the usb bootable opencore, USBOpenCoreAPFSloader3 but it fails with:
v1 successful create the usb, but from what I'm reading I need v3 to proceed with the Catalina latest update.
Any suggestion?
Code:
mount_msdos: /dev/disk3s1: REsource busy
mount: /Volumes/EFIext failed with 71v1 successful create the usb, but from what I'm reading I need v3 to proceed with the Catalina latest update.
Any suggestion?
Sorry I don't understand, can you clarify?
I didn't try the update yet, I started to download the update but I saw that the CatalinaOTAswufix was not working this time, so I interrupted the download, till I will figure out how to create the usb bootable opencore.
were you able to have cat on your comp? like I tried putting cat on my comp and it didn't work. I'm talking when you first installed the os, not the subsequent updates
Sorry but still not clear to me...cat?
When I installed catalina on my macbook pro 4,1 I flashed the rom and installed 10.15.6 with dosdude patcher, no additional things and then updated to latest versions, with OTAswufix till 19H15.
I solved the usb issue by manually creating the efi partition on my usb (from a linux box) and manually copying the opencore files.
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Same here, using files inside the loader v3 app (also the one attached here), same screenshot as @telepati .
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You could try the Driver#### method of using the apfs.efi driver. That way you don't need the apfs patch.
Mac Pro 3,1 NVMe support + Upgrade Guide + Questions
Hello everybody! I'm newly owner of MP 3,1 and I want to discuss upgrading of this nice but old machine with you. I suggest everyone to take part in creating this guide. Now I will post my achievement in making it bootable from NVMe SSD. Bootable NVMe Note: it can be dangerous for your MP...
forums.macrumors.com
For the Startup Manager, you may need to bless boot.efi file in the Preboot volume.
@telepati I managed to install the 19H114 update in my macbook pro 4,1 in an hybrid and strange manner 
Here what worked for me:
1. Prepared a usb bootable with Opencoreloader v3
2. Downloaded the update from software update (do not restart), download it all
3. Show package content of the CatalinaOTAswufix.app
4. Navigated to Contents/Resources/Script and opened file catalinaswuOTAfix.command with textedit to see commands
5. Opened a terminal and issued the following commands (manually), I don't know if all of these are mandatory, but I'm describing exactly what I did (SIP disabled):
6. Restarted the os with the bootable usb with opencoreloader inserted, pressed option and booted from the usb into opencore (you will notice now "macos installer" in the list, next to the opencoreloader, but if you click on it --> prohibited symbol)
7. Chose from opencore picker "macos installer"
8. Installed the update
9. 1st reboot: booted again into opencoreloader and chose my hd to complete the installation: it booted to my desktop without dosdude patch
10. Rebooted, patched with dosdude as usual and chose macintosh-hd as startup disk from dosdude usb
....I don't know why the CatalinaOTAswufix failed to patch....
This time, looking at the script, it didn't enter the loop to execute all the above commands.
The if condition, which seems false this time, is:
if [ -e /Library/Updates/*-*/*-*.dist ]
Here what worked for me:
1. Prepared a usb bootable with Opencoreloader v3
2. Downloaded the update from software update (do not restart), download it all
3. Show package content of the CatalinaOTAswufix.app
4. Navigated to Contents/Resources/Script and opened file catalinaswuOTAfix.command with textedit to see commands
5. Opened a terminal and issued the following commands (manually), I don't know if all of these are mandatory, but I'm describing exactly what I did (SIP disabled):
Code:
sudo mount -uw /
killall Finder
sudo nvram boot-args="-no_compat_check amfi_get_out_of_my_way=1"
diskutil mount Preboot
sudo perl -i -pe 's/>-no_compat_check/>amfi_get_out_of_my_way=1 -no_compat_check/' /Volumes/Preboot/*/Library/Preferences/SystemConfiguration/com.apple.Boot.plist
sudo defaults write /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation -bool true
sudo defaults read /Library/Preferences/com.apple.security.libraryvalidation.plist
Macmid="$(sysctl -n hw.model)"
Macmidswap='s/\'${Macmid}'/MacExample7,0/'
Boardid="$(ioreg -l | grep "board-id" | awk -F\" '{print $4}')"
Boardidswap='s/Mac-9AE82516C7C6B903/\'${Boardid}'/'
OTAdist="$(ls -l /Library/Updates/*-*/*-*.dist)"
OTAinstallcheck='s/var\sboardIds/return\ttrue;\tvar\tboardIds/'
sudo perl -i -pe ${OTAinstallcheck} /Library/Updates/*-*/*-*.dist6. Restarted the os with the bootable usb with opencoreloader inserted, pressed option and booted from the usb into opencore (you will notice now "macos installer" in the list, next to the opencoreloader, but if you click on it --> prohibited symbol)
7. Chose from opencore picker "macos installer"
8. Installed the update
9. 1st reboot: booted again into opencoreloader and chose my hd to complete the installation: it booted to my desktop without dosdude patch
10. Rebooted, patched with dosdude as usual and chose macintosh-hd as startup disk from dosdude usb
....I don't know why the CatalinaOTAswufix failed to patch....
This time, looking at the script, it didn't enter the loop to execute all the above commands.
The if condition, which seems false this time, is:
if [ -e /Library/Updates/*-*/*-*.dist ]
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thx @joevt actually what I am trying to achieve is reboot from one Catalina container to another one. So far I have stupid script mounting efi, replacing UUID and then rebooting, but some more user friendly ideas are more than welcome
Using genuine macbook pro / dosdude1 patched...