Difference between revisions of "File Systems"

File Systems (view source)

Revision as of 09:18, 16 September 2021

611 bytes added , 2 years ago

Fat32 verified

Andreas85

translator

987

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 File systems under DOS and early windows on a lot of floppydisks and USB-sticks
-=== FAT → FAT32 → VFAT ===
+=== FAT16 → FAT32 (+VFAT) ===
-You may find this filesystem on disks created under DOS or Windows9x. It is sometimes used to transport files from one operating system to another.
+This is a traditional file system under DOS and early Windows versions. Even today it can be found on many floppy disks, USB sticks and hard drives. It is supported by all types of operating systems and is therefore often used to exchange files, to pass them on, or to keep them accessible to both operating systems in the case of dualboot.
+Even with FAT32, this comes not without its disadvantages.
+* does not support user rights or xattr
+* severely restricted file names (8.3 or LFN for VFAT, no distinction between lowercase and uppercase)
+* no files over 2GB (FAT16) 4GB (FAT32)
+* no journaling
+* not robust
+{{warning | FAT Filesystems do not use journaling. Data on such filesystems is vulnerable to irreparable corruption due to ''improper ejection or power outage''.}}
 see [https://wiki.archlinux.org/title/FAT FAT@ARCH-wiki], [https://en.wikipedia.org/wiki/File_Allocation_Table FAT@wikipedia]
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 === exFAT === <!--T:26-->
-Microsoft created the exFAT (Extended File Alocation Table) to make up for the inadequacies of FAT32, as it can hold large files, large numbers of files & use very large partitions. Supported on Linux, Windows, MacOS and many other devices, it is one of the most compatible filesystems.
+Microsoft developed the exFAT (Extended File Alocation Table) in 2006 and optimized it for flash memories such as USB sticks and SD cards. It can store large files and large numbers of files, and it can manage very large partitions. It is supported by Linux, Windows, macOS and many other devices and is one of the most compatible file systems.
-A good choice when you need to share a removable device between many systems.
 <!--T:27-->