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Topic: Fork (filesystem)


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In the News (Mon 7 Dec 09)

  
  Fork (disambiguation) - Wikipedia, the free encyclopedia
A fork is a utensil for eating and cooking.
Fork in the road, a junction where a road (or a river) divides into two, without either of them clearly being a turn off the main route
Forks, Washington is a town in United States.
en.wikipedia.org /wiki/Fork_(disambiguation)   (257 words)

  
 [No title]
The filesystem is specified using the xfs_speĀ­ cial argument which should be the device name of the disk partition or volume containing the filesystem.
Regardless, the filesystem to be repaired must be unmounted, otherwise, the resulting filesystem may be inconsistent or corrupt.
The assume_xfs suboption specifies that the filesystem is an XFS filesystem.
www.ibiblio.org /gferg/ldp/man/man8/xfs_repair.8.html   (1961 words)

  
 [No title]
This can be a filesystem block, an inode or quota (smaller than a filesystem block), or a directory block (could be larger than a filesystem block).
The free blocks are examined and totalled, and disĀ­ played in the form of a histogram, with a count of extents in each range of free extent sizes.
Usually a chunk is multiple filesystem blocks, although there are cases with large filesystem blocks where a chunk is less than one block.
www.ibiblio.org /gferg/ldp/man/man8/xfs_db.8.html   (4281 words)

  
 Mac OS X Filesystems
Historically, a resource fork has been used for various things such as custom icons, preferences, license information, etc. As expected, this is incompatible with traditional Unix filesystems, and care must be taken while moving files across filesystems.
The null mount filesystem is a stackable filesystem in 4.4BSD.
Note that the null filesystem layer also serves as a prototype filesystem, and new layers can be implemented by using the null layer as a template.
www.kernelthread.com /mac/osx/arch_fs.html   (2405 words)

  
 Manpage of xfs_repair   (Site not responding. Last check: 2007-10-02)
The filesystem is specified using the xfs_special argument which should be the device name of the disk partition or volume containing the filesystem.
Therefore, if you are trying to repair a filesystem that was damaged due to a disk drive failure, steps should be taken to ensure that all blocks in the filesystem are readable and writeable before attempting to use xfs_repair to repair the filesystem.
The filesystem to be checked and repaired must have been unmounted cleanly using normal system administration procedures (the umount(8) command or system shutdown), not as a result of a crash or system reset.
www.mosquitonet.com /~syzdek/docs/man/man8/xfs_repair.8.html   (1960 words)

  
 [No title]
Because of the lack of possibilities for storing different parts of the same file in a filesystem that only handles consecutive data in one part, it is common to pack, or convert, the Macintosh file into some other format before moving the file over the network.
For example, both forks of a Macintosh file, the Finder information, and an associated comment are arranged in a single file with a simple structure.
The data fork is easily extended because it resides by itself in the AppleDouble Data file.
www.iana.org /assignments/media-types/multipart/appledouble   (2693 words)

  
 [No title]
The behavior of the HFS filesystem in the case of such a conflict is undefined, and may change in future releases.
If truncate() shortens the file so that the entry for the resource fork would extend beyond the new end of the file then the fork is shortened to fit in the space that remains, or to zero bytes if the entry is now entirely beyond the end of the file.
If you are loading the HFS filesystem as a module, then is important that you do this before rebooting, since the module is unlikely to be loaded at the same address after the reboot.
www.kernel.org /pub/scm/linux/kernel/bkcvs/linux-2.4/fs/hfs/HFS.txt,v   (6174 words)

  
 A file by any other name
Despite all of the work that has been done with object-oriented systems and user interfaces, the Unix filesystem is the primary mechanism we use to locate and interact with our data.
Any of those directories could be a mount point or a symbolic link, taking the pathname resolution to another filesystem or another machine in the case of an NFS mount.
When the automounter decides a filesystem is idle and unmounts it, any entries for files on that filesystem are removed.
www.itworld.com /Comp/2378/swol-0995-sysadmin/search.html   (2956 words)

  
 [No title]   (Site not responding. Last check: 2007-10-02)
This is used to further describe the files in the iso9660 filesystem to a unix host, and provides information such as longer filenames, uid/gid, posix permissions, symbolic links, block and character devices.
all boot partitions are mapped to the partition that contains the iso9660 filesystem image and the generic boot image that is located in the first 16 sectors of the disk is used for all architectures.
Linux) implement read ahead bugs in their filesystem I/O. These bugs result in read errors on one or more files that are located at the end of a track.
www.math.psu.edu /local_doc/mkisofs/mkisofs.8   (9565 words)

  
 Fragmentation in HFS Plus Volumes
Informally put, a filesystem is a scheme for arranging data on the disk, while a volume is an instance of a filesystem.
If the above fork were fragmented, specification of its location would require more than one extent descriptor: in fact, as many as the number of fragments the fork has.
Note that if a fork is empty, that is, has a zero size, we do not include it in our calculations at all -- we consider a zero fork to be neither fragmented nor unfragmented.
www.kernelthread.com /mac/apme/fragmentation   (2547 words)

  
 Signals, Sockets, and Pipes - The Perl Journal, Spring 1997
When meeting these new beasts, I was surprised to find that the things known as "filesystems" had a maximum size of two gigabytes - I was used to 64 bit words and maximum filesystem sizes measured in terabytes.
When the child client is activated it immediately requests df data from its associated server, writes the filesystem data to its output pipe, and then waits for an ACK (acknowledge) by attempting to read from its input pipe.
Filesystem data is now outward bound for the client who initiated this connection.
www.foo.be /docs/tpj/issues/vol2_1/tpj0201-0008.html   (2193 words)

  
 Linux.com - Filesystems HOWTO: Macintosh Hierarchical Filesystem - HFS
The resource fork is an indexed file containing code segments, menu items, dialog boxes, etc. The data fork has the "stream of bytes" semantics of a Unix file contents.
Each fork is comprised of one or more extents or contiguous runs of blocks.
While not strictly a part of the filesystem, it should be noted that several catalog record fields are reserved for the exclusive use of Finder, a program which handles user access to the filesystem and automatically maintains associations between applications and data files.
howtos.linux.com /howtos/Filesystems-HOWTO-7.shtml   (1022 words)

  
 ASPN : Python Cookbook : Fork a daemon process on Unix   (Site not responding. Last check: 2007-10-02)
If you ask yourself what a "daemon fork" is, it decouples a process from the calling terminal so it can run on its own, even if that terminal is closed.
Typical C code for a "daemon fork" translates more or less literally to Python, the only specialty you have to consider is that os.fork() does not return -1 on errors, but throws an OSError exception.
In that case, stdin, stdout and stderr are all set up for you to refer to the network connection, and the fork()s and session manipulation should not be done (to avoid confusing inetd).
aspn.activestate.com /ASPN/Cookbook/Python/Recipe/66012   (1985 words)

  
 mkisofs(8): create hybrid ISO9660/JOLIET/HFS ... - Linux man page
Each file written to the iso9660 filesystem must have a filename in the 8.3 format (8 characters, period, 3 characters, all upper case), even if Rock Ridge is in use.
This disk label specifies slice 0 for the first (usually UFS type) filesystem image that is used to boot the PC and slice 1 for the iso9660 image.
Therefore to store a Macintosh file on a Unix filesystem, a way has to be found to cope with the two forks and the extra attributes (which are referred to as the finder info).
www.die.net /doc/linux/man/man8/mkisofs.8.html   (13482 words)

  
 Macintosh HFS Filesystem for Linux: Writing to HFS Filesystems   (Site not responding. Last check: 2007-10-02)
You can do anything to a resource fork that you can do to a data fork, except that you cannot enable execute permissions on a resource fork.
If you plan to use the resource fork on a Macintosh then you must obey the format of a valid resource fork.
Directories have no resource fork but you may wish to create a directory which has the same location and view on the Finder's screen as an existing one.
www-sccm.stanford.edu /~hargrove/HFS/README-3.html   (1140 words)

  
 *BSD procfs forc() mem device hole
Under the *BSD proc filesystem, /proc/#/mem access is controlled by the permissions on the file.
Thus you can fork(), have the childe run something suid, and then modify that file's memory.
This means you can fork() open the childs mem device and then have the child execute a setuid executable.
www.insecure.org /sploits/BSD.procfs.fork.mem.html   (214 words)

  
 fork - OneLook Dictionary Search
Fork, fork : UltraLingua English Dictionary [home, info]
Phrases that include fork: carving fork, salad fork, american fork, clark fork, north fork, more...
Words similar to fork: branch, branching, crotch, forked, forkful, forking, leg, pitchfork, ramification, ramify, separate, more...
www.onelook.com /cgi-bin/cgiwrap/bware/dofind.cgi?word=fork   (428 words)

  
 [No title]
/*********************************************** * * Function: * remount * * Purpose: * remount will fork off a process to * call the mount command to remount the * filesystem in read/write state.
* * Calls: * sprintf() * fork() * execlp() * wait() * memset() * write() * * Parameters: * sockfd - A file descriptor to an open * socket for debugging and error * messages.
* **********************************************/ int remount(int sockfd) { pid_t childpid; int status; char message[50]; int error = 0; if((childpid = fork()) == 0) { memset(message,'\0',sizeof(message)); sprintf(message,"remounting filesystem\n"); if(sockfd > 0) { write(sockfd,message,strlen(message)); } error = execlp("mount","mount","-o","remount", "-rw","/",0); if(error
people.msoe.edu /~stocksb/init2.html   (470 words)

  
 [No title]   (Site not responding. Last check: 2007-10-02)
This section is very brief because of the complexity of the system and the large number of options available.
The Mac filesystem, HFS - hierarchical filesystem - is very complex and superior to other systems, having more features and a high level of reliability.
Otherwise you should use stuffit or zip to compress the files into an archive before placing them on a non-Mac filesystem.
www.cs.wits.ac.za /~jon/help/mac/osx-intro/advanced.html   (1026 words)

  
 [No title]
I've never personally had data corruption in Linux that couldn't be traced to HW failure (though I know a few people who have, mostly reiser users), and don't know anyone on Windows who *hasn't* had data corruption at some point, though the vast majority of them probably weren't using NTFS.
I'm not sure of the details for NTFS, but on some filesystems it is possible to run out of file or allocation range slots/bits before running out of space.
In it, they hypothesized that the reason humans started drinking animal milk and eating eggs was to supplement their protein intake, since the most widely available plants often didn't contain sufficient protein.
www.xent.com /pipermail/fork/Week-of-Mon-20050711.txt   (18446 words)

  
 Macintosh HFS Filesystem for Linux: A Guide to Special File Formats   (Site not responding. Last check: 2007-10-02)
mount option yields different special files to represent the Macintosh-specific parts of a file within the structure of the Linux filesystem.
schemes for representing forked files use AppleDouble header files to contain the resource fork and the Finder's metadata together in a single file.
In the unlikely event that you try to write a header with more descriptors, a warning will be issued by the kernel, and extra descriptors will be ignored.
www-sccm.stanford.edu /Students/hargrove/HFS/README-4.html   (1379 words)

  
 Manpage of MKISOFS
The boot image must be exactly the size of either a 1200, 1440, or a 2880 kilobyte floppy, and mkisofs will use this size when creating the output iso9660 filesystem.
This allows a symlink farm structure, where symlinks inside the base directory stay symlinks, but symlinks outside the base directory become real files on the CD.
This document was created by man2html, using the manual pages.
www.cs.vassar.edu /cgi-bin/man.cgi?mkisofs   (11433 words)

  
 ITworld.com - A file by any other name
ITworld.com - A file by any other name
Scheduling in the user threads library, Part 2
Tips and Tricks for Optimizing Microsoft(r) Windows(r) Server 2003 on ProLiant Servers
www.itworld.com /Comp/2378/swol-0995-sysadmin   (3243 words)

  
 Filesystem Benchmarking with PostMark from Network Appliance
seek), with 512MB MFS (using RamBunctious 2.0 to create a memory-based filesystem or "RAM disk", not Macintosh File System ;-) [Brad Knowles]
These tests highlight the importance of using a log-structured journaling filesystem, "softupdates" or some other method of safely delaying, grouping, and avoiding writing to disk synchronous metadata operations, in order to improve performance.
Note that the Linux-standard practice of mounting volumes "async" is very dangerous, and while it may result in high performance you can get equally high performance with higher reliability using FreeBSD with softupdates.
www.shub-internet.org /brad/FreeBSD/postmark.html   (1301 words)

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