- Joined
- Jul 28, 2017
- Messages
- 65
- Motherboard
- Gigabyte Z390 Pro
- CPU
- i7-8700K
- Graphics
- Vega 64
- Mac
- Mobile Phone
Hi,
I am having a strange problem during the fresh installation Catalina 10.15.4.
"An error occurred while preparing the installation. Try running this application again."
My build is:
CPU: i9-9900k
MTB: ASUS ROG Maximus XI HERO Z390
Memory: Corsair Vengeance PRO 64 GB
Graphic Card: Sapphire RX 5700 XT OC
SSD: Samsung 970 EVO 1TB
I have made couple of Hackintoshes before but this is my first build with RX 5700 XT.
Steps I have taken:
1. Use command "sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/USB" to create a new USB installation disk. And then copied EFI folders over to EFI partition
2. Change my BIOS setting
Load Optimized Defaults
Enable USB Hand Off
Disable VT-d
2. Use USB stick to boot up the computer and choose Clover option "Boot macOS Install from Install macOS Catalina"
3. Add "agdpmod=pikera" to clover boot options
4. Boot into macOS Recovery Page
5. Choose Disk Utility to format my Samsung SSD as "Macintosh HD" with APFS file format and GUID partition scheme.
6. Then choose Install macOS Catalina, select HDD, then see the installation progress bar
Here's the furthest I can go. When my installation progress bar has 2 mins left, I see a screen with error says:
"An error occurred while preparing the installation. Try running this application again."
I've tried below to mitigate:
Terminal command to sync the timestamp trick as most google search result indicated. Doesn't work, same result.
Download Catalina installation image again and redo the USB Stick in case the image was corrupt. Doesn't work, same result.
Double check Samsung 970 EVO on the latest firmware. Checked and I actually also switched from 970 EVO plus to 970 EVO. Doesn't work, same result.
Check and and boot from each 16GB memory stick individually. Doesn't work, same result.
I am also trying some other people's EFI folder but no luck so far. Can someone please take a look my EFI folder and tell me if you have run into this problem before?
Thanks in advance
I am having a strange problem during the fresh installation Catalina 10.15.4.
"An error occurred while preparing the installation. Try running this application again."
My build is:
CPU: i9-9900k
MTB: ASUS ROG Maximus XI HERO Z390
Memory: Corsair Vengeance PRO 64 GB
Graphic Card: Sapphire RX 5700 XT OC
SSD: Samsung 970 EVO 1TB
I have made couple of Hackintoshes before but this is my first build with RX 5700 XT.
Steps I have taken:
1. Use command "sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/USB" to create a new USB installation disk. And then copied EFI folders over to EFI partition
2. Change my BIOS setting
Load Optimized Defaults
Enable USB Hand Off
Disable VT-d
2. Use USB stick to boot up the computer and choose Clover option "Boot macOS Install from Install macOS Catalina"
3. Add "agdpmod=pikera" to clover boot options
4. Boot into macOS Recovery Page
5. Choose Disk Utility to format my Samsung SSD as "Macintosh HD" with APFS file format and GUID partition scheme.
6. Then choose Install macOS Catalina, select HDD, then see the installation progress bar
Here's the furthest I can go. When my installation progress bar has 2 mins left, I see a screen with error says:
"An error occurred while preparing the installation. Try running this application again."
I've tried below to mitigate:
Terminal command to sync the timestamp trick as most google search result indicated. Doesn't work, same result.
Download Catalina installation image again and redo the USB Stick in case the image was corrupt. Doesn't work, same result.
Double check Samsung 970 EVO on the latest firmware. Checked and I actually also switched from 970 EVO plus to 970 EVO. Doesn't work, same result.
Check and and boot from each 16GB memory stick individually. Doesn't work, same result.
I am also trying some other people's EFI folder but no luck so far. Can someone please take a look my EFI folder and tell me if you have run into this problem before?
Thanks in advance
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