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Extended file system

The extended file system, or ext, was implemented in April 1992 as the first file system created specifically for the Linux kernel. It has metadata structure inspired by traditional Unix filesystem principles, and was designed by Rémy Card to overcome certain limitations of the MINIX file system.[4][2] It was the first implementation that used the virtual file system (VFS), for which support was added in the Linux kernel in version 0.96c, and it could handle file systems up to 2 gigabytes (GB) in size.[2]

ext
Developer(s)Rémy Card
Full nameextended file system
IntroducedApril 1992; 31 years ago (1992-04) with Linux 0.96c
Discontinued14 January 1997; 26 years ago (1997-01-14)
with Linux 2.1.21
Preceded byMINIX file system
Succeeded byext2
Structures
Directory contentsTable
File allocation
  • Free space: Linked list[1]
  • Metadata: Table
Bad blocksTable
Limits
Max volume size2 GB[2]
Max filename length255 characters[3]
Features
File system
permissions
Unix permissions
Transparent
encryption
No
Copy-on-writeNo

ext was the first in the series of extended file systems. In 1993, it was superseded by both ext2 and Xiafs, which competed for a time, but ext2 won because of its long-term viability: ext2 remedied issues with ext, such as the immutability of inodes and fragmentation.[5]

Other extended file systems Edit

There are other members in the extended file system family:

  • ext2, the second extended file system.
  • ext3, the third extended file system.
  • ext4, the fourth extended file system.

See also Edit

References Edit

  1. ^ "freelists.c - fs/ext/freelists.c - Linux source code (2.1.20)". Bootlin. Retrieved 14 May 2023.
  2. ^ a b c Jones, M. Tim (17 February 2009). "Anatomy of ext4". IBM Developer Works. Retrieved 8 February 2012.
  3. ^ "ext_fs.h - include/linux/ext_fs.h - Linux source code (0.96c-patch2)". Bootlin. Retrieved 14 May 2023.
  4. ^ (in French). April Association. 19 April 1999. Archived from the original on 4 February 2012. Retrieved 8 February 2012.
  5. ^ Card, Rémy; Ts'o, Theodore; Tweedie, Stephen. . Archived from the original on 4 February 2012. Retrieved 8 February 2012. First published in First Dutch International Symposium on Linux. State University of Groningen. 1995. ISBN 90-367-0385-9.

extended, file, system, help, expand, this, article, with, text, translated, from, corresponding, article, german, march, 2023, click, show, important, translation, instructions, view, machine, translated, version, german, article, machine, translation, like, . You can help expand this article with text translated from the corresponding article in German March 2023 Click show for important translation instructions View a machine translated version of the German article Machine translation like DeepL or Google Translate is a useful starting point for translations but translators must revise errors as necessary and confirm that the translation is accurate rather than simply copy pasting machine translated text into the English Wikipedia Consider adding a topic to this template there are already 9 037 articles in the main category and specifying topic will aid in categorization Do not translate text that appears unreliable or low quality If possible verify the text with references provided in the foreign language article You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at de extended filesystem see its history for attribution You should also add the template Translated de extended filesystem to the talk page For more guidance see Wikipedia Translation The extended file system or ext was implemented in April 1992 as the first file system created specifically for the Linux kernel It has metadata structure inspired by traditional Unix filesystem principles and was designed by Remy Card to overcome certain limitations of the MINIX file system 4 2 It was the first implementation that used the virtual file system VFS for which support was added in the Linux kernel in version 0 96c and it could handle file systems up to 2 gigabytes GB in size 2 extDeveloper s Remy CardFull nameextended file systemIntroducedApril 1992 31 years ago 1992 04 with Linux 0 96cDiscontinued14 January 1997 26 years ago 1997 01 14 with Linux 2 1 21Preceded byMINIX file systemSucceeded byext2StructuresDirectory contentsTableFile allocationFree space Linked list 1 Metadata TableBad blocksTableLimitsMax volume size2 GB 2 Max filename length255 characters 3 FeaturesFile systempermissionsUnix permissionsTransparentencryptionNoCopy on writeNoext was the first in the series of extended file systems In 1993 it was superseded by both ext2 and Xiafs which competed for a time but ext2 won because of its long term viability ext2 remedied issues with ext such as the immutability of inodes and fragmentation 5 Other extended file systems EditThere are other members in the extended file system family ext2 the second extended file system ext3 the third extended file system ext4 the fourth extended file system See also EditList of file systems Comparison of file systemsReferences Edit freelists c fs ext freelists c Linux source code 2 1 20 Bootlin Retrieved 14 May 2023 a b c Jones M Tim 17 February 2009 Anatomy of ext4 IBM Developer Works Retrieved 8 February 2012 ext fs h include linux ext fs h Linux source code 0 96c patch2 Bootlin Retrieved 14 May 2023 Remy Card Interview April 1998 in French April Association 19 April 1999 Archived from the original on 4 February 2012 Retrieved 8 February 2012 Card Remy Ts o Theodore Tweedie Stephen Design and Implementation of the Second Extended Filesystem Archived from the original on 4 February 2012 Retrieved 8 February 2012 First published in First Dutch International Symposium on Linux State University of Groningen 1995 ISBN 90 367 0385 9 This Linux related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Extended file system amp oldid 1172527171, wikipedia, wiki, book, books, library,

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