Invalid catalog record type error on Mac, how to fix and recover data?

Posted by Katrina to Mac Data Recovery on January 24th, 2018

Recently, I failed to open my internal hard drive on Mac. When I ran Disk Utility, an error message saying, "Invalid Catalog Record type". I am unable to perform any of the tasks on my Mac computer and all the files are out of my reach. Can someone suggest me on how to recover data after invalid catalog record type error on Mac? Thanks in advance.

Mac operating system provides excellent functionality that attracts the users, but it is still not free from glitches. Sometimes, users also have to face with invalid catalog record type error on Mac. This error is not so common on Mac but if occur then create trouble for users. In this passage, we will talk about ways to fix invalid catalog record type error on Mac.

What is the invalid catalog record type error?

The catalog record refers to the entry of file in disk's directory, which is divided into 4 types: file, folder, file thread and folder thread. Once there is any type of catalog record other than these four types, then Disk Utility will report the invalid catalog record type error.

The invalid catalog record type error will do harm to the computer data and other functioning critically. It will slow down our Mac computer, get stuck on any screen, automatically shut down, fail to access or open some applications and damage hard drive or data stored on Mac computer.

How to fix invalid catalog record type error on Mac?

When catalog record type error occurs, data on Mac is inaccessible. Unfortunately, Disk Utility is unable to resolve this problem. The only way is to reformat the hard drive which has invalid catalog record type error. But it will lead to serious data loss problem. If data stored on the hard drive is important for us, we should recover data from the corrupted hard drive with free Mac data recovery software, and then fix invalid catalog record type error on Mac by reformatting.

1st step: Recover data after invalid catalog record type error with free Mac data recovery software

iBoysoft Mac Data Recovery is a free Mac data recovery software that can recover data after invalid catalog record type error, recover data from corrupted external hard drive, recover data from inaccessible external hard drive, recover data from unreadable external hard drive, recover data from unmountable external hard drive, recover data from unrecognized external hard drive, recover deleted files even empty from Mac Trash, etc. on macOS Mojave 10.14/High Sierra 10.13/10.12 Sierra/10.11/10.10/10.9/10.8/10.7.

Besides, iBoysoft Mac Data Recovery is the best APFS data recovery software that can recover lost data from encrypted APFS volume, recover data from formatted APFS drive, recover data from unmountable APFS drive, recover data from unreadable APFS drive, recover data from corrupted APFS drive, recover data from inaccessible APFS drive, recover deleted/lost APFS partition, etc.

Tutorial to recover data after invalid catalog record type error on Mac

After downloading and installing iBoysoft Mac Data Recovery on Mac computer, we can recover data after invalid catalog record type error with the following 3 simple steps.

Step 1: Launch iBoysoft Mac Data Recovery.

Step 2: Select the corrupted hard drive and click "Next" button to scan it.

Recover data after invalid catalog record type error with iBoysoft Mac Data Recovery

Step 3: Preview the scanning results and choose files we want to recover, then click "Recover" button to get those files back.

2nd Step: Fix invalid catalog record type error on Mac by reformatting

Step 1: Launch Disk Utility from Utilities and select the corrupted hard drive.

Step 2: Choose Erase function and complete the related information (name, format, scheme), then click Erase button.

With the solution given above, we can use the hard drive on Mac again.

The main causes of invalid catalog record type error

Since the invalid catalog record type error will make us stuck in such a dilemma, we should know it better. Here are the main causes behind the invalid catalog record type error. Let's take a look:

1. Human mistake: human mistakes like accidental deletion and unintentional formatting are the most common causes of critical data loss.

2. Mac header file corruption: Mac header file plays an important role when you attempt to access Mac files or application. But due to header file corruption when you try to access file then related error messages prompts on the screen.

3. Virus attack: some severe virus or spyware attack will modify and damage the catalog record.

4. File system corruption: such as sudden power failure and some other improper operations will result in file system corruption.

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