53 lines
3.3 KiB
Plaintext
53 lines
3.3 KiB
Plaintext
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Episode: 1520
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Title: HPR1520: The Ext File System
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Source: https://hub.hackerpublicradio.org/ccdn.php?filename=/eps/hpr1520/hpr1520.mp3
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Transcribed: 2025-10-18 04:34:56
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---
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one.
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Okay, and welcome, hey, I hope
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everyone's having a great day. The reason I wanted to do this was I wanted to
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talk about the different file systems and I was interested in this and at
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work we've been doing a lot with the different file systems and so what I'll
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do is a series of notes about the different file systems so the one that was
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most interesting is the XT for me so I started with that the EXT and so it's
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the original the original file system was introduced with Linux and it's called
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the extended file system or this EXT for short it provides a basic
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Unix like file systems for Linux using virtual directory used to handle
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physical devices and storing data on fixed-linked blocks on physical devices the
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XT system uses a system called in-nodes to track information about the file
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stored in the virtual directory the in-nodes system creates a separate table for
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each physical device called the in-node table to store the file
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information so each stored file in a virtual directory has an entry in the in-node
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table the extended part of the name comes from the additional data that
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attracts on each file the file name the file size the owner of the file the
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group the file belongs to excess permissions for the file pointers to each
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disblock that contains data from the file Linux references each in-node in the
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in-node table using a neat number called the in-node number it's assigned by the
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file system as data files are created the file system uses the in-node number to
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identify the file rather than having to use the full file name and path the
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extended file system or XT was implemented in April 1992 as a file system
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created specifically for the Linux kernel it has a made-to-date data
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structure inspired by the traditional Unix file system or UFS and was designed
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by RemiCard to overcome limitations in the Minix file system it was
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first implemented in its first implementation that used the virtual file
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system VSS for support was added in the Linux kernel version 0.960 and it
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could handle file systems up to two gigabytes in size XT was first in a
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series of extended file systems it was immediately superseded by both XC2
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and XI AFS which competed for a time but XT21 because of the long-term
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viability XC2 reminied many issues inside XT such as the immuability in
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mutability of i-nodes and fragmentation
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file system all right this is JW and you can reach me at JWP5 at
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hotmail.com I hope you enjoyed the first installment of the file system
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you have been listening to Hacker Public Radio or Hacker Public Radio does
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aren't we are a community podcast network that releases shows every week day
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Monday through Friday today's show like all our shows was contributed by a
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HBR listener like yourself if you ever consider recording a podcast then visit
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our website to find out how easy it really is Hacker Public Radio was founded
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by the digital dog pound and the economical computer club HBR is funded by
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the binary revolution at binref.com all binref projects are crowd-sponsored by
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linear pages from shared hosting to custom private clouds go to lunar pages
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to come for all your hosting needs unless otherwise stasis today's show is
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released under a creative commons attribution share a life lead us our lives
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