Unable To Install Catalina

Posted on by

  1. Unable To Install Catalina Network Connection Lost
  2. Unable To Install Mac Os Catalina
  3. Unable To Install Catalina 10.15.6
Install

Unable to install macOS Catalina with bootable USB without macOS recovery partition. I had deleted the macOS and macOS recovery partitions many months ago to increase the capacity for the Bootcamp Windows. Now I want to reinstall macOS via a bootable USB, but on booting into it, it gets stuck in the spinning globe screen forever. I'm unable to get an installer to upgrade. Mojave to catalina. The Apple knowledgeable article leads to apps.apple.com which has an invalid certificate. If I get around that by avoiding Safari in favor of Firefox, the link fails. What is an alternate path. The problem we face when putting Catalina on older Macs is that, hidden deep within the operating system itself, there is a script that checks what machine you are trying to install it on. If this script detects that your chosen machine is too old, the Catalina installer will quit automatically. This is where you choose where you want to install Catalina. If you’re installing Catalina on a computer that has never been turned into a Hackintosh before (i.e. Doesn’t already have Mojave, High Sierra, Sierra, or El Capitan installed), there won’t be any hard disk options to select. We’ll have to fix that.

Macos

Troubleshooting


Problem

To install Rational Performance Tester (RPT) via IBM Installation Manager (IM), the RPT_SETUP archive file is downloaded and extracted first in order to install IM.
Running Install.app in Finder from the RPT_SETUP/InstallerImage_macosx_cocoa_x86_64 folder, as showing in the following screen capture:
An error message is displayed:
This problem is not limited to RPT only, but also applies to other products that use IM for installation.

Cause

The macOS Catalina security restrictions prevent applications not notarized with Apple from installing; the IM files are not notarized and are thus not trusted by Catalina.

Resolving The Problem

Since the problem was found during IM installation for RPT, RPT folder names are used here. But this solution works for IM in general.
To resolve this problem:
CatalinaCatalina

Unable To Install Catalina Network Connection Lost

  1. If you have the IM installer files in a macOS folder like Downloads or Documents, move them to a folder that you created manually in a non-special location, like the root of your home directory (for example: ~/installers).
  2. Open the Terminal application.
  3. cd to the RPT_SETUP directory.
  4. Run the command: sudo xattr -rcs .
    This command removes the extended attributes for all the files under the current directory. Some of these attributes are preventing the installation. Since these attributes are not required for the installation, it is safe to remove all of them.
  5. Enter your sudo password.
    This screen capture shows the previous steps:
  6. Verify that all metadata was stripped by using this command:
    sudo xattr -lr .
    This command returns no output if the metadata was successfully stripped. If there is output, that means all metadata was not stripped. Do not proceed to the next step until all metadata is stripped.
  7. Go back to Finder and run Install.app.
  8. IM now starts and you can proceed with the installation.
Unable To Install Catalina

Document Location

Unable To Install Mac Os Catalina

[{'Business Unit':{'code':'BU053','label':'Cloud & Data Platform'},'Product':{'code':'SSMMM5','label':'Rational Performance Tester'},'ARM Category':[{'code':'a8m0z000000boDYAAY','label':'Performance Tester->Installation'}],'ARM Case Number':','Platform':[{'code':'PF017','label':'Mac OS'}],'Version':'All Version(s)','Line of Business':{'code':'LOB36','label':'IBM Automation'}},{'Business Unit':{'code':null,'label':null},'Product':{'code':'SSDV2W','label':'IBM Installation Manager'},'ARM Category':[],'Platform':[{'code':'PF025','label':'Platform Independent'}],'Version':'All Version(s)','Line of Business':{'code':','label':'}},{'Business Unit':{'code':'BU053','label':'Cloud & Data Platform'},'Product':{'code':'SSJMXE','label':'Rational Functional Tester'},'ARM Category':[{'code':'a8m0z000000boBcAAI','label':'Functional Tester->Installation'}],'Platform':[{'code':'PF017','label':'Mac OS'}],'Version':'All Version(s)','Line of Business':{'code':'LOB36','label':'IBM Automation'}},{'Business Unit':{'code':'BU053','label':'Cloud & Data Platform'},'Product':{'code':'SSBLQQ','label':'Rational Test Workbench'},'ARM Category':[{'code':'a8m0z000000boDTAAY','label':'Integration Tester->Installation'}],'Platform':[{'code':'PF017','label':'Mac OS'}],'Version':'All Version(s)','Line of Business':{'code':'LOB36','label':'IBM Automation'}}]

Document Information

Unable To Install Catalina 10.15.6

Modified date:
19 March 2021