Fix Acrobat Installation Fails with macOS Sudoers Error (Code 7)
Question details
The user is unable to install or reinstall Adobe Acrobat on macOS Catalina because the installer exits with code 7 due to an /etc/sudoers file error.
- Product
- Adobe Acrobat
- Device & OS
- macOS Catalina
- Scenario
- Installing or reinstalling Adobe Acrobat Pro on a macOS system.
- Observed behavior
- The installation fails abruptly, returning an exit code 7 and indicating a problem with the macOS sudoers file permissions or ownership.
Modifying the macOS sudoers file is highly sensitive and carries risks to your system's administrative capabilities. Ensure you have root privileges and consider backing up your Mac with Time Machine before making Terminal changes.
Correct the /etc/sudoers File Ownership via Terminal
Check and restore the ownership of the macOS sudoers file, ensuring it is owned by the root user (UID 0) rather than UID 1, which blocks the Acrobat installer.
The Acrobat installer strictly verifies system permissions during setup. If your macOS `/etc/sudoers` file has an incorrect User ID (such as UID 1 instead of the default root UID 0), the installer will terminate and throw exit code 7. You can fix this by restoring root ownership using macOS Terminal.
Navigate to Finder, open the Applications folder, go to Utilities, and double-click Terminal to launch the command-line interface.
Type the command 'ls -l /etc/sudoers' and press Enter. Look at the output to see if the file is owned by 'daemon', '1', or any user other than 'root'.
Elevate your privileges by typing 'sudo su -' and entering your Mac administrator password to gain root access.
Run the command 'chown root:wheel /etc/sudoers' to assign the correct User ID 0 (root) to the sudoers file. You can also run 'visudo' to check the file for any syntax errors.
Close the Terminal, download a fresh copy of the Adobe Acrobat installer if necessary, and run the setup process again. It should now bypass the exit code 7 error.
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Frequently Asked Questions
What does Acrobat installer exit code 7 mean on macOS?
Exit code 7 typically indicates a system permission or environmental error preventing the installer from writing necessary files. On macOS Catalina, it frequently points to an incorrectly configured or corrupted /etc/sudoers file.
Can I bypass the sudoers error without using Terminal?
No, the sudoers file is a protected macOS system configuration file. To fix ownership issues (like reverting UID 1 back to root), you must use Terminal commands with administrative privileges.
Why did my Mac's sudoers file change to UID 1?
The /etc/sudoers file ownership can occasionally be altered by poorly coded third-party software installers, incomplete macOS system updates, or accidental administrative changes, causing strict installers like Adobe Acrobat to fail.
Is visudo safe to use on macOS?
Yes, using the 'visudo' command is the safest way to edit the sudoers file because it automatically checks for syntax errors before saving, preventing accidental lockouts from administrative access.
