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NOM
libblkid - Bibliothèque d’identification de périphériques de type bloc
SYNOPSIS
#include <blkid/blkid.h>
cc fichier.c -lblkid
DESCRIPTION
The libblkid library is used to identify block devices (disks) as to
their content (e.g. filesystem type) as well as extracting additional
information such as filesystem labels/volume names, unique
identifiers/serial numbers, etc. A common use is to allow use of
LABEL= and UUID= tags instead of hard-coding specific block device
names into configuration files.
Block device information is normally kept in a cache file
/etc/blkid.tab and is verified to still be valid before being returned
to the user (if the user has read permission on the raw block device,
otherwise not). The cache file also allows unprivileged users
(normally anyone other than root, or those not in the "disk" group) to
locate devices by label/id. The standard location of the cache file
can be overridden by the environment variable BLKID_FILE.
In situations where one is getting information about a single known
device, it does not impact performance whether the cache is used or not
(unless you are not able to read the block device directly). If you
are dealing with multiple devices use of the cache is highly
recommended (even if empty) as devices will be scanned at most one
time, and the on-disk cache will be updated if possible. There is
rarely a reason not to use the cache.
In some cases (modular kernels), block devices are not even visible
until after they are accessed the first time, so it is critical that
there is some way to locate these devices without enumerating only
visible devices, so the use of the cache file is required in this
situation.
AUTEUR
libblkid a été écrite par Andreas Dilger pour les utilitaires du
système de fichier ext2 avec les entrées de Ted Ts’o. Elle a subit par
la suite de modifications importantes de la part de Ted Ts’o.
FICHIERS
/etc/blkid.tab
Les données de cache extraites des périphériques de type bloc
reconnus.
DISPONIBILITÉ
libblkid fait partie du paquet e2fsprogs depuis la version 1.33 et est
disponible sur http://e2fsprogs.sourceforge.net.
COPYRIGHT
libblkid is available under the terms of the GNU Library General Public
License (LGPL), version 2 (or at your discretion any later version). A
copy of the LGPL should be included with this library in the file
COPYING. If not, write to
Free Software Foundation, Inc.
59 Temple Place
Suite 330
Boston, MA 02111-1307 USA
ou consultez http://www.gnu.org/licenses/licenses.html#LGPL
VOIR AUSSI
blkid_get_cache(3), blkid_put_cache(3), blkid_get_dev(3),
blkid_probe_all(3), blkid_get_devname(3), blkid_get_tag_value(3),
blkid.tab(7)
TRADUCTION
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signaler toute erreur de traduction par un rapport de bogue sur le
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