While creating file systems with fdisk on GPT partitions, I have noticed in the file system type, there are options like:

 20 Linux filesystem               0FC63DAF-8483-4772-8E79-3D69D8477DE4
 21 Linux server data              3B8F8425-20E0-4F3B-907F-1A25A76F98E8
 22 Linux root (x86)               44479540-F297-41B2-9AF7-D131D5F0458A
 23 Linux root (ARM)               69DAD710-2CE4-4E3C-B16C-21A1D49ABED3
 24 Linux root (x86-64)            4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709
 25 Linux root (ARM-64)            B921B045-1DF0-41C3-AF44-4C6F280D3FAE
 26 Linux root  (IA-64)             993D8D3D-F80E-4225-855A-9DAF8ED7EA97
 27 Linux reserved                 8DA63339-0007-60C0-C436-083AC8230908
 28 Linux home                     933AC7E1-2EB4-4F13-B844-0E14E2AEF915
 29 Linux RAID                     A19D880F-05FC-4D3B-A006-743F0F84911E

I have used Linux filesystem, Linux root (x86_x4), Linux home on my systems interchangeably with XFS, NilFS, EXT4 and ReiserFS.

What are the difference between these file system types? Is there a man page documenting all of them?


On https://en.wikipedia.org/wiki/GUID_Partition_Table you can follow the links in footnotes 34 and 35 to find explanations.



The main purpose of the different types is to allow automatic mounting of certain partitions to the correct location in your file system.

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