• [http://66.249.91.104/translate_c?hl=it&ie=UTF-8&oe=UTF-8&langpair=it|en&u=http://wiki.ubuntu-it.org/Fstab?action=fullsearch&value=linkto%3A%22Fstab%22&context=180&prev=/language_tools Fstab]

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• Introduction

The rows of /etc/fstab configuration contain the necessary information to the assembly of the peripheral ones of memorization of the system. Such rows come read to the start of the system and can be modified solo from the customer [http://66.249.91.104/translate_c?hl=it&ie=UTF-8&oe=UTF-8&langpair=it|en&u=http://wiki.ubuntu-it.org/Sudo&prev=/language_tools root].

• Contained of the rows

It is possible to visualize such rows with the being followed commando:

cat /etc/fstab 

The result of the previous commando will be similar to following:

# /etc/fstab: static rows system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 # /dev/hda1 UUID=12102C02102CEB83 /media/windows ntfs silent, umask=0, locale=it_IT.utf8 0 0 # /dev/hda2 UUID=cee15eca-5b2e-48ad-9735-eae5ac14bc90 ninth swap sw 0 0 # /dev/hda3 UUID=98E0-6D24 /media/dati vfat defaults, utf8, umask=007, uid=0, gid=46, car, rw, nouser 0 0 # /dev/hda4 UUID=0aa86c61-0df9-4f1a-8b0b-34abbee6b769/ext3 nouser, defaults, errors=remount-ro, atime, car, rw, dev, exec, suid 0 0 /dev/hdc /media/cdrom0 udf, iso9660 user, atime, noauto, rw, dev, exec, suid 0 0 

Every commented line is not composed from six lives:

• UUID

UUID “Universally Unique Identifier” is used in the field of the software, translate in Italian language is not other that “Universal Only Identificatore”. Draft of a product realized from the Open Software Foundation (OSF) as it leave of system DCE. A UUID is essentially a 16-byte number (128-bit).

In the relative esadecimale shape a UUID can be similar this: 0aa86c61-0df9-4f1a-8c0b-34abbee6b769

Although the UUID does not guarantee a effective oneness, the possible number of combinations so is elevated to avoid one possible coincidence between two codes. The possible number of combination of the UUID is 2128 = 25616 = approximately 3.4 x 1038. That means that 1 trillion of UUID must be generates every nanosecond to you so that between 10 billions of years the UUID number is get exaustedded and to return to regenerate the same UUID.

Inside of the /etc/fstab rows the peripheral ones come identified referenziate from just the Universally Unified IDentifier, a particular identificativo number univoco.

An example of line of fstab:

# /dev/sda1 UUID=98E0-6D24 /media/dati vfat defaults, utf8, umask=007, uid=0, gid=46, car, rw, nouser 0 0 

In order to visualize the UUID of a disc to inside digitare the following commando of a window of they finishes:

sudo vol_id - u /dev/xxxx 

To the dicitura “/dev/xxxx” it goes replaced the reference to the peripheral one of which it is desired to know the UUID (i.e. “/dev/sda1”, “/dev/hda3” etc).

• Ulterior resources

• [http://66.249.91.104/translate_c?hl=it&ie=UTF-8&oe=UTF-8&langpair=it|en&u=http://wiki.ubuntu-it.org/Hardware/DispositiviPartizioni&prev=/language_tools DispositiviPartizioni]

• [http://66.249.91.104/translate_c?hl=it&ie=UTF-8&oe=UTF-8&langpair=it|en&u=http://wiki.ubuntu-it.org/CategoryAmministrazione&prev=/language_tools CategoryAmministrazione]