Installer Information on Mac Recovery Server is Damaged

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In this content, we have compiled the steps that users who experience the problem of damaged installer information on the recovery server should take.

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Problems most users face when they consider selling their device often include an outdated Mac certificate or incompatibility between the hard drive and operating system.

Legacy Mac Certificate Problem

It provides Mac users with a unique certificate that becomes part of their digital identity. However, this certificate has a certain validity period and users must renew it periodically to take full advantage of Apple's features. If your Mac certificate has expired, Apple can no longer verify your digital identity. This may cause restrictions on important operations such as reinstalling your macOS.

If the certificate expires, Apple cannot verify the digital identity. This leaves users with the problem of not being able to perform important operations such as reinstalling their macOS.


  1. Certificate Renewal:Check the validity of your old Mac certificate and renew it if necessary. This is important so that Apple can verify your digital identity.
  2. Hard Drive and Operating System Compatibility:Check the compatibility between the hard drive and operating system used in your device. Make updates and fix incompatibilities if necessary.
  3. Backup and Recovery:Taking a backup beforehand can help protect your data in case of any problems. Don't forget to make regular backups using Time Machine or a similar backup solution.

MacOS Not Compatible with Hard Drive

Mac introduced APFS, a new file system for hard drives after the Sierra version of macOS. However, this new file system is only supported by newer Mac models. If your Mac has an older hard drive format, you may have trouble installing macOS versions later than Sierra. This incompatibility could be one of the main reasons why you cannot reinstall macOS on your Mac.

Solution offers

  1. Check Hard Disk Format:Check the file system of your Mac's hard drive. If an old file system is still used, convert the disk format to APFS to update it.
  2. Check MacOS Version:Check the macOS version on your Mac. If you're using an older version, upgrade to a more recent macOS version if possible.
  3. Get Backup:Back up your important data before changing the hard disk format. It is important to make a safe backup to prevent data loss during this process.
  4. Check for Driver Updates:If you still have incompatibility issues, make sure to update your Mac's hardware drivers. In some cases, driver updates can fix incompatibility issues.
The installer information on the recovery server is damaged 1
The installer information on the recovery server is damaged

Installer Information on Recovery Server is Damaged

Whatever the cause of this problem, there is a general solution: reinstalling macOS in recovery mode. However, it is important to follow certain steps before starting this process. Here are step-by-step instructions to reinstall MacOS in recovery mode:

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  1. Preparations:
    • Turn off your Mac.
    • During setup, make sure you have a stable internet connection and the Mac is plugged in and turned off.
  2. Starting Recovery Mode:
    • Restart the Mac.
    • To start recovery mode, select the appropriate key combination below:
      • Command + R: To reinstall existing MacOS (Recommended)
      • Option + Command + R: To upgrade macOS to the latest version that the device is compatible with.
      • Shift + Option + Command + R: To reinstall the MacOS your device had at the time of purchase.
    • Press and hold the keys until you see the Apple logo.
  3. Utilities Screen:
    • You will be asked to enter your administrator password to access the utilities screen.
    • Under the Utilities Screen, select “Reinstall macOS.”
  4. Installation Steps:
    • Select “Continue” and follow the on-screen instructions presented to you.
    • Select the disk where you want to install the system files for macOS.
  5. Unlocking Disk:
    • If the installer asks to unlock the disk, enter the password to log in to your Mac.
  6. Installation Process:
    • As the installation begins, make sure your Mac's lid is closed and the device is turned off.

Process to Reformat Hard Drive on Mac

To reformat an external hard drive on Mac, you can follow these steps:

  1. Connect Hard Drive:
    • Connect your external hard drive to your Mac.
  2. Open Disk Utility:
    • To open Spotlight searchCommand + SpacePress the keys.
    • Type “Disk Utility” and open the application after finding it.
  3. Select Target Drive:
    • On the left, find and select the external drive you want to format.
  4. Choose to Delete:
    • Select the “Delete” tab from the top menu bar.
  5. Specify Format and Naming Settings:
    • In the window that opens, give the hard drive a name.
    • Under “Format,” select “Mac OS Extended (Journaled)” if you plan to use the hard drive only on a Mac.
    • Note that if you want to communicate between both macOS and Windows, you may need special software (exFAT format, for example).
    • For “Schema” select “GUID Partition Map”.
  6. Delete Drive:
    • After determining the settings, press the “Delete” or “Erase” button.
  7. Confirm:
    • Confirm the warning message to confirm the deletion.

Here are the steps to follow for the "Installer information on the recovery server is damaged" error.

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