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Topic: Extended file system

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	Design and Implementation of the Second Extended Filesystem
		A special file is referenced by a major number, which identifies the device type, and a minor number, which identifies the unit.
		The VFS is an indirection layer which handles the file oriented system calls and calls the necessary functions in the physical filesystem code to do the I/O. This indirection mechanism is frequently used in Unix-like operating systems to ease the integration and the use of several filesystem types [Kleiman 1986, Seltzer et al.
		System V semantics are a bit more complex: if a directory has the setgid bit set, new files inherit the group id of the directory and subdirectories inherit the group id and the setgid bit; in the other case, files and subdirectories are created with the primary group id of the calling process.
	web.mit.edu /tytso/www/linux/ext2intro.html (5308 words)

	Linux EXT2 File System Data Recovery
		Ext2 file system is a powerful and extensible file system for Linux and it is the most successful file system in the Linux community.
		The EXT2 file system is built on the basis that the data held in files is kept in data blocks.
		The system administrator may choose the optimal block size (from 1,024 to 4,096 bytes), while creating an ext2 file system, For instance, a 1,024-block size is preferable when the average file length is smaller than a few thousand bytes because this leads to less internal fragmentation.
	www.optimumrecovery.com /data/linux-ext2.html (1333 words)

	Extended file system - Wikipedia, the free encyclopedia
		The extended file system or ext was the first file system created specifically for the Linux operating system.
		It was designed by Rémy Card to overcome certain limitations of the Minix file system.
		It was superseded by both ext2 and xiafs, between which there was a competition, which ext2 won because of its long-term viablity.
	en.wikipedia.org /wiki/Extended_file_system (95 words)

	Linux.com - Filesystems HOWTO: Extended filesystems (Ext, Ext2, Ext3)
		System V semantics are a bit more complex: if a directory has the setgid bit set, new files inherit the group id of the directory and subdirectories inherit the group id and the setgid bit; in the other case, files and subdirectories are created with the primary group id of the calling process.
		A special field in the superblock is used by the kernel code to indicate the status of the file system.
		When such a file is deleted, random data is written in the disk blocks previously allocated to the file.
	howtos.linux.com /howtos/Filesystems-HOWTO-6.shtml (2458 words)

	Ext2 - Wikipedia, the free encyclopedia
		The Minix file system was mostly free of bugs, but used 16-bit offsets internally and thus only had a maximum size limit of 64 megabytes.
		The extended file system (ext), was released in April 1992 as the first file system using the VFS API and was included in Linux version 0.96c.
		The ext file system solved the two major problems in the Minix file system (maximum partition size and filename length limitation to 14 characters), and allowed 2 gigabytes of data and filenames of up to 255 characters.
	en.wikipedia.org /wiki/Ext2 (976 words)

	Linux.com - Design and Implementation of the Second Extended Filesystem
		After the integration of the VFS in the kernel, a new filesystem, called the ``Extended File System'' was implemented in April 1992 and added to Linux 0.96c.
		A special file is referenced by a major number, which identifies the device type, and a minor number, which identifies the unit.
		The VFS is an indirection layer which handles the file oriented system calls and calls the necessary functions in the physical filesystem code to do the I/O. This indirection mechanism is frequently used in Unix-like operating systems to ease the integration and the use of several filesystem types [Kleiman 1986, Seltzer et al.
	www.linux.com /guides/khg/HyperNews/get/fs/ext2intro.shtml (5333 words)

	Using ReiserFS with Linux
		File systems and hard drives have always been fascinating to me, ever since I invested way too much money in a large (at the time) 80MB drive for the computer I was using in the early 90s.
		The ext2 file system was improved by the addition of journalling, which created the ext3 file system as its successor.
		Atomic file system modification, ensuring that the on-disk file system is always in a valid state.
	www.ibm.com /developerworks/aix/library/au-unix-reiserFS/index.html (2457 words)

	File Systems in Linux
		It replaced the original 'extended file system', which was in itself, a replacement for the Minix filesystem, which was Linux's first 'default' filesystem.
		This is a file that resides in a separate portion of your hard disk.
		Nevertheless, you may be running a system that may be considered a quasi-legacy system and you want to make the move from ext2 to ext3.
	www.linux.org /lessons/advanced/x1254.html (1769 words)

	Second Extended File System - Computing Knowledgebase - A Wikia wiki (Site not responding. Last check: 2007-10-20)
		Since Linux development was made under a cross-development under the Minix Operating System, it made sense at the time to use the Minix File System.
		Two new file systems were included in the Linux Kernel: JFS and Ext.
		Ext proved the most popular, as it was based on the Minix File System, only now it was capable of addressing 2GB of Hard Drive Space, and included support for 255 Character filenames.
	pc.wikia.com /wiki/Ext2 (263 words)

	The Second Extended File system (EXT2)
		The EXT2 file system, like a lot of the file systems, is built on the premise that the data held in files is kept in data blocks.
		Not all of the blocks in the file system hold data, some must be used to contain the information that describes the structure of the file system.
		A file system does not need to concern itself with where on the physical media a block should be put, that is the job of the device's driver.
	www.science.unitn.it /~fiorella/guidelinux/tlk/node95.html (539 words)

	The Second Extended File System
		The file system implementation is free to support them or not without risk of damaging the meta-data.
		Extended attributes are name:value pairs associated permanently with files and directories, similar to the environment strings associated with a process.
		Extended attributes are extensions to the normal attributes which are associated with all inodes in the system.
	www.nongnu.org /ext2-doc/ext2.html (5702 words)

	The GNU C Library - File System Interface
		The number of disk blocks is not strictly proportional to the size of the file, for two reasons: the file system may use some blocks for internal record keeping; and the file may be sparse--it may have "holes" which contain zeros but do not actually take up space on the disk.
		The file owner and group play a role in determining access because the file has one set of access permission bits for the user that is the owner, another set that apply to users who belong to the file's group, and a third set of bits that apply to everyone else.
		The file resides on a read-only file system.
	www.cs.utah.edu /dept/old/texinfo/glibc-manual-0.02/library_13.html (6160 words)

	Ext2 Linux File System
		The ext2 or second extended file system is a file system for the Linux kernel.
		Its main drawback is that it is not a journaling file system.
		Its successor, ext3, is a journaling file system and is almost completely compatible with ext2.
	diskinternals.com /glossary/ext2.html (510 words)

	File Systems
		A file allocation is placed at the start of a volume and pointers keep track of the files.
		As files are modified and data is added, the new data is written to a different place on the drive and pointers indicate the link between the old and new data.
		This file system is used primarily by the OS/2 operating system.
	www.techadvice.com /tech/F/FileSystems.htm (571 words)

	OpenVMS User's Manual
		Execute access on a directory permits you to examine and read files that you know are contained in the directory; that means you can examine a file if you already know what the file specification is, but you cannot display a list of the files in the directory.
		The use of the period (.) as a literal character in extended file names requires RMS to determine which periods are file name characters and which are delimiters.
		When you create multiple files with the same name differing only in case, DCL treats the subsequent files as new versions of the original file, and converts them to the same case as the original file.
	www.uni.edu /connelly/vmsos731/vmsos731/6489/6489pro_009.html (2614 words)

	EFSO - extended file system options.
		To access a security locked file, you must have both the desired permission to access and permission to pass the security lock.
		This is like CONCURRENT, but the use of the file is monitored by the system which will allow the program to lock and unlock pieces of the file.
		All changes to the file are logged to a journal file or tape so that the file can be restored to its state at the time when the disk failed.
	www.thinkage.on.ca /english/gcos/expl/acce/efso.html (617 words)

	Filesystems HOWTO: Extended filesystems (Ext, Ext2, Ext3)
		Extended filesystem (ext fs), second extended filesystem (ext2fs) and third extended filesystem (ext3fs) were designed and implemented on Linux by Rmy Card, Laboratoire MASI--Institut Blaise Pascal, < card@masi.ibp.fr>, Theodore Ts'o, Massachussets Institute of Technology, < tytso@mit.edu> and Stephen Tweedie, University of Edinburgh, < sct@redhat.com>
		The ultimate aim of this package is to be able to use the ext2 file system as a replacement of FAT or HPFS.
		ext2endable reorganises an empty ext2 file systems to allow them to be extended, and ext2end that extends an unmounted ext2 file system.
	www.tldp.org /HOWTO/Filesystems-HOWTO-6.html (2385 words)

	Mac OS X 10.4 Tiger: Page 7
		Extended attributes extend the basic attributes associated with files and directories in the file system.
		Value is a pointer to a data buffer containing textual or binary data to be associated with the extended attribute.
		As in earlier versions of Mac OS X, files prefixed with "._" contain all of the metadata for their un-prefixed partner that the native volume format cannot contain in a single file: resource forks, flags, dates, and now in Tiger, extended attributes.
	arstechnica.com /reviews/os/macosx-10.4.ars/7 (1384 words)

	setproplist(3)
		fd Specifies a file descriptor for a file that is to be assigned Extended File Attributes.
		The Extended File Attribute buffer is defined in sys/proplist.h.
		Also, both new and existing Extended File Attributes can be assigned to a file, although if you specify an Extended File Attribute name that already exists in the Property List and a new value to pair with it, the new value will replace the existing value.
	www.uwm.edu /cgi-bin/Dept/IMT/wwwman?topic=setproplist(3)&msection=3X (777 words)

	WebNFS - Extended Filesystem API for Java Applications (Site not responding. Last check: 2007-10-20)
		Demand for distributed file system protocols, such as the WebNFS protocol, is coming from several areas.
		The extended file system uses the scheme name in the URL to provide for the automatic selection of a file system.
		Extending existing programs to network file systems should be straight forward using the extensions provided.
	www.sun.com /software/webnfs/api.xml (1393 words)

	XXCOPY, a Versatile File Management Utility --- Boldly Extended Xcopy
		With previous versions, when XXCOPY encounters a file whose contents are blocked by another process (that usually results in a failed copy), the destination file (to be overwritten) will be deleted as a result.
		Once upon a time (before /CF (command File) was introduced), the command line was such a precisous space, the command syntax could not afford a delimiter between the command letter(s) and its parameter.
		File selection by the file timestamp /DA: and /DB: are enhanced with a time value in addition to the date value (add T or @ followed by a time value).
	www.xxcopy.com (4142 words)

	acl_extended_file(3): test for info in ACLs by ... - Linux man page
		Access to the file object may be further restricted by other mechanisms, such as Mandatory Access Control schemes.
		The access(2) system call can be used to check whether a given type of access to a file object would be granted.
		The file system on which the file identified by path_p is located does not support ACLs, or ACLs are disabled.
	www.die.net /doc/linux/man/man3/acl_extended_file.3.html (338 words)

	Hexprobe Hex Editor - Powerful Hex File, Disk, Process Editor
		This is a professional hex editor for manipulating binary files, disk drives, and system processes.
		It provides many extended functionality to edit the contents of disk drives and processes.
		Allow any binary file to be mapped with a hierarchical list of variables that could be understood and edited in a much easier fashion.
	www.hexprobe.com /hexprobe (443 words)

	MacAddict Forums / UNIX vs. Mac OS Extended file system: Advantages & Dis-a
		I noticed that a Unix file system was an option when installing Jaguar.
		Most of the time, using code written for a case-sensitive system on one that is case-insensitive and case-preserving shouldn't cause any harm.
		On a traditional Unix file system, these are two files.
	www.macaddict.com /forums/post/128617 (437 words)

	Symbian Blast Powered by Handango - Product Information
		Extended File Manager The Extended File Manager gives you full control over your device.
		You can clean up all folders with just one click, which is very useful in case of temporary folders and unused system temporary files (with full safety).
		With Extended File Manager you can hide folders to keep them private, customize shortcuts, which give you an easy access to Bookmarks, copy and send system files.
	www.handango.com /pdablast/PlatformProductDetail.jsp?siteId=547&platformName=Symbian&platformId=4&productType=2&productId=34819§ionId=6096&catalog=20&title=Other (225 words)

	Symbian: Symbian: Psiloc Extended Suite for Series 60 by Psiloc Mobile Solutions for Symbian
		Extended Nokia 7650/3650 Suite is a selection of the four most important ("must have") productivity applications for Nokia 7650/3650.
		Extended Profiles extends the functionality of the Nokia 7650/3650 phones with advanced user profile managing.
		Extended Profiles significantly extends the customizing features available in the application, and it allows for a change of profile based on a given task schedule.
	www.handango.com /ampp/store/PlatformProductDetail.jsp?siteId=1208&productId=46718 (881 words)

	PHP Classes - Class: EFC/XFSS - Extended File Stealth System
		The file names are also obfuscated, so a sneaker will not know what the original format was.
		The next challenge will be to encrypt and decrypt the files at client side, perhaps with Javascript, for those that cannot have an SSL connection, and also the creation of a replacement class for those that do not have the possibility to use libmcrypt.
		The only files that you need to look at into are index.php, srcefc.php, mkconfig.php and.htaccess (the last one to use in the secured directory for strict security if you can not put it outside Web document tree).
	www.phpclasses.org /browse/package/1297.html (383 words)

	Patch-free Intercepting of System Calls
		Extended file names are the ones that may have "pipes" in them, for example,
		This file name extension is implemented on the lowest possible level, right before a request to open a file is passed to the kernel, by a system call
		Note, neither the kernel, nor libc nor any of user or system files and libraries are actually patched or modified in any way.
	www.okmij.org /ftp/syscall-interpose.html (919 words)

	PC World - PC World Downloads - TrackerV3
		TrackerV3 is an Advanced File System Explorer targeting everybody who is looking for a real alternative to the Windows Explorer.
		Generates various sorts of file system reports (to clipboard, file, and printer -- we're talking about one-click directory print-outs here).
		Export extended file informations of whole directories (or even directory trees) to CSV-formatted files.
	www.pcworld.com /downloads/userreviews/fid,49156/userreviews.html (422 words)

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