In 2008 the ext4 was introduced which is the most modern dedicated Linux file system. Ext4 has a maximum file size of 16 terabytes and the maximum volume size of 1 exabyte. Neither Windows or Mac OS has a native ext2 ext3 or ext4 support. HFS, HFS+, APFS. HFS or the Hierarchical File System was introduced by Apple in 1985 for use in Mac OS.
- Next enter the hex value for the file system type you intend to install on the partition. For Linux swap partitions. The hex value is 82. For Linux ext2 or ext3 partitions, the hex value is 83. For other partition types, use the l command to see a list of file system types and their hex values. Repeat this for each partition you created.
- Since formatting can create and change file system format, you need to choose the file system type for the USB flash drive to be formatted. There are a number of file systems types such as NTFS, exFAT, FAT16, FAT32, EXT4, EXT3, EXT2, etc. File system provides solutions for operating system to organize data, and different systems adopt separate.
- Format USB drive for both Mac and PC use. I bet some of you have this dilemma: you have a USB drive and want to use it on both Mac and PC. If you format the USB drive to HFS+ File System, it will not be supported by Windows computer. And if you format it to NTFS, it will not be fully supported in Mac Operating System.
Disk Utility User Guide
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Disk Utility on Mac supports several file system formats:
- Apple File System (APFS): The file system used by macOS 10.13 or later.
- Mac OS Extended: The file system used by macOS 10.12 or earlier.
- MS-DOS (FAT) and ExFAT: File systems that are compatible with Windows.
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 (partition) on demand. When a single APFS container has multiple volumes, the container’s free space is shared and is automatically allocated to any of the individual volumes 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.
- APFS: Uses the APFS format. Choose this option if you don’t need an encrypted or case-sensitive format.
- APFS (Encrypted): Uses the APFS format and encrypts the volume.
- APFS (Case-sensitive): Uses the APFS format and is case-sensitive to file and folder names. For example, folders named “Homework” and “HOMEWORK” are two different folders.
- APFS (Case-sensitive, Encrypted): Uses the APFS format, is case-sensitive to file and folder names, and encrypts the volume. For example, folders named “Homework” and “HOMEWORK” are two different folders.
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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
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Choose one of the following Mac OS Extended file system formats for compatibility with Mac computers using macOS 10.12 or earlier.
- Mac OS Extended (Journaled): Uses the Mac format (Journaled HFS Plus) to protect the integrity of the hierarchical file system. Choose this option if you don’t need an encrypted or case-sensitive format.
- Mac OS Extended (Journaled, Encrypted): Uses the Mac format, requires a password, and encrypts the partition.
- Mac OS Extended (Case-sensitive, Journaled): Uses the Mac format and is case-sensitive to folder names. For example, folders named “Homework” and “HOMEWORK” are two different folders.
- Mac OS Extended (Case-sensitive, Journaled, Encrypted): Uses the Mac format, is case-sensitive to folder names, requires a password, and encrypts the partition.
Windows-compatible formats
Choose one of the following Windows-compatible file system formats if you are formatting a disk to use with Windows.
- MS-DOS (FAT): Use for Windows volumes that are 32 GB or less.
- ExFAT: Use for Windows volumes that are over 32 GB.
See alsoPartition schemes available in Disk Utility on MacAbout Disk Utility on Mac