Summary: In this blog post, we present a few reasons as to why macOS Mojave on your iMac, Mac mini or MacBook Pro might not find or detect an external hard drive after macOS 10.14 Mojave upgrade. We also share the solutions to resolve the plausible root causes of undetectable external hard drive after Mojave upgrade.
As a bonus, we will also share an easy method for recovering the data from the undetectable drive so that at least the data is rescued while you troubleshoot the original problem in the drive or macOS. So, before you read further, download a free trial of Stellar Data Recovery Professional application on your Mac.
Apr 30, 2020 To format an external hard drive for Mac with Time Machine, you must follow the steps below. Step 1 Open Finder, Applications, then go to Utilities and Disk Utility. Step 2 Follow the steps above to format the drive, and then you can use it with Time Machine on your Mac system. Part 3: Bonus Tip – Data Recovery from Formatted Hard Drive on Mac. The macOS 10.14 Mojave does support exFAT file format and since Windows does too, converting an NTFS drive to exFAT may solve the problem of accessing the files it contains on both platforms. This method is very simple and can be done on any macOS run device. When done the drive can be read and written to on Mac and Windows without any problems.
Do-it-Yourself: Recover the Data when Mac can’t find Drive after Mojave Upgrade
Consider Stellar Data Recovery Professional software if you wish to recover data from a non-detected external hard drive after the Mojave upgrade. It can help you get back your erased files, even if you have already erased the external hard drive on macOS Mojave.
The software offers an easy-to-use interface to select the connected drive that is not recognized via Finder, perform a rigorous scan, and recover data to an external storage location.
Watch this quick video to know how to get back the inaccessible data by using the “Can’t find volume” feature of Stellar Data Recovery Professional.
Apart from facilitating data recovery in the case of can’t find external hard drive after the Mojave upgrade, the software also recovers lost data from any logical data loss scenarios. It includes permanent file deletion, emptying of Trash, file system corruption, erasure of storage drive, volume loss, encryption of volume, and such.
Stellar Data Recovery Professional supports macOS Catalina, Mojave and can recover lost, deleted, or inaccessible data from MacBook Air, MacBook Pro, iMac, Mac Mini, and other Mac devices. It also recovers data from external HDDs, SSDs, SD Cards, and USB Flash Drives with APFS, HFS+, HFS, FAT, FAT16, FAT32, exFAT, and NTFS file system format.
Conclusion
The blog presented the case where users cannot find the external hard drive when connected to their Mac. The issue can be as trivial as connection problem or as critical as hard drive failure. In case of logical failure, using a data recovery software is recommended. The suggested third-party utility — Stellar Data Recovery Professional for Mac — is an ideal choice if your external hard drive does not show up when connected to your Mac that has undergone macOS Catalina, Mojave upgrade.
Try out the software here; click the Free Download button to get a copy of the application on your Mac.
Install the utility and launch it to evaluate, scan, and preview. If you desire to save the recoverable files, the software prompts you to activate. (Watch activation video)
Once activated, you are ready to save your lost data from the external drive to another drive of equal or larger size. The activated utility has an additional benefit in the form of Drive Monitor, which allows monitoring, mapping, and cloning of storage drive.
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Disk Utility User Guide
Disk Utility on Mac supports several file system formats:
Apple File System (APFS)
Apple File System (APFS), the default file system for Mac computers using macOS 10.13 or later, features strong encryption, space sharing, snapshots, fast directory sizing, and improved file system fundamentals. While APFS is optimized for the Flash/SSD storage used in recent Mac computers, it can also be used with older systems with traditional hard disk drives (HDD) and external, direct-attached storage. macOS 10.13 or later supports APFS for both bootable and data volumes.
APFS allocates disk space within a container on demand. The disk’s free space is shared and can be allocated to any of the individual volumes in the container as needed. If desired, you can specify reserve and quota sizes for each volume. Each volume uses only part of the overall container, so the available space is the total size of the container, minus the size of all the volumes in the container.
Choose one of the following APFS formats for Mac computers using macOS 10.13 or later.
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You can easily add or delete volumes in APFS containers. Each volume within an APFS container can have its own APFS format—APFS, APFS (Encrypted), APFS (Case-sensitive), or APFS (Case-sensitive, Encrypted).
Mac OS Extended
Choose one of the following Mac OS Extended file system formats for compatibility with Mac computers using macOS 10.12 or earlier.
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Hard Drive Format For Macos Mojave Windows 10Windows-compatible formats
Choose one of the following Windows-compatible file system formats if you are formatting a disk to use with Windows.
Mac Os Mojave Hard Drive Format
Hard Drive Format For Mac Os Mojave 10 14 Iso
See alsoPartition schemes available in Disk Utility on MacAbout Disk Utility on Mac
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