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<trademark class="registered">Linux</trademark> File Systems
Context English Spanish State
A pool or vdev in the <literal>Faulted</literal> state is no longer operational. The data on it can no longer be accessed. A pool or vdev enters the <literal>Faulted</literal> state when the number of missing or failed devices exceeds the level of redundancy in the vdev. If missing devices can be reconnected, the pool will return to a <link linkend="zfs-term-online">Online</link> state. If there is insufficient redundancy to compensate for the number of failed disks, then the contents of the pool are lost and must be restored from backups.
Other File Systems
<primary>File Systems</primary>
<primary>File Systems Support</primary> <see>File Systems</see>
File systems are an integral part of any operating system. They allow users to upload and store files, provide access to data, and make hard drives useful. Different operating systems differ in their native file system. Traditionally, the native FreeBSD file system has been the Unix File System <acronym>UFS</acronym> which has been modernized as <acronym>UFS2</acronym>. Since FreeBSD 7.0, the Z File System (<acronym>ZFS</acronym>) is also available as a native file system. See <xref linkend="zfs"/> for more information.
In addition to its native file systems, FreeBSD supports a multitude of other file systems so that data from other operating systems can be accessed locally, such as data stored on locally attached <acronym>USB</acronym> storage devices, flash drives, and hard disks. This includes support for the <trademark class="registered">Linux</trademark> Extended File System (<acronym>EXT</acronym>).
There are different levels of FreeBSD support for the various file systems. Some require a kernel module to be loaded and others may require a toolset to be installed. Some non-native file system support is full read-write while others are read-only.
The difference between native and supported file systems.
Which file systems are supported by FreeBSD.
How to enable, configure, access, and make use of non-native file systems.
Understand <trademark class="registered">UNIX</trademark> and <link linkend="basics">FreeBSD basics</link>.
Be familiar with the basics of <link linkend="kernelconfig">kernel configuration and compilation</link>.
Feel comfortable <link linkend="ports">installing software</link> in FreeBSD.
Have some familiarity with <link linkend="disks">disks</link>, storage, and device names in FreeBSD.
<trademark class="registered">Linux</trademark> File Systems
FreeBSD provides built-in support for several <trademark class="registered">Linux</trademark> file systems. This section demonstrates how to load support for and how to mount the supported <trademark class="registered">Linux</trademark> file systems.
Kernel support for ext2 file systems has been available since FreeBSD 2.2. In FreeBSD 8.x and earlier, the code is licensed under the <acronym>GPL</acronym>. Since FreeBSD 9.0, the code has been rewritten and is now <acronym>BSD</acronym> licensed.
The <citerefentry><refentrytitle>ext2fs</refentrytitle><manvolnum>5</manvolnum></citerefentry> driver allows the FreeBSD kernel to both read and write to ext2 file systems.
This driver can also be used to access ext3 and ext4 file systems. The <citerefentry><refentrytitle>ext2fs</refentrytitle><manvolnum>5</manvolnum></citerefentry> filesystem has full read and write support for ext4 as of FreeBSD 12.0-RELEASE. Additionally, extended attributes and ACLs are also supported, while journalling and encryption are not. Starting with FreeBSD 12.1-RELEASE, a DTrace provider will be available as well. Prior versions of FreeBSD can access ext4 in read and write mode using <package>sysutils/fusefs-ext2</package>.
To access an ext file system, first load the kernel loadable module:
<prompt>#</prompt> <userinput>kldload ext2fs</userinput>
Then, mount the ext volume by specifying its FreeBSD partition name and an existing mount point. This example mounts <filename>/dev/ad1s1</filename> on <filename>/mnt</filename>:
<prompt>#</prompt> <userinput>mount -t ext2fs <replaceable>/dev/ad1s1</replaceable> <replaceable>/mnt</replaceable></userinput>
<personname> <firstname>Murray</firstname> <surname>Stokely</surname> </personname> <contrib>Contributed by </contrib>
<personname> <firstname>Allan</firstname> <surname>Jude</surname> </personname> <contrib>bhyve section by </contrib>
<personname> <firstname>Benedict</firstname> <surname>Reuschling</surname> </personname> <contrib>Xen section by </contrib>
Virtualization software allows multiple operating systems to run simultaneously on the same computer. Such software systems for <acronym>PC</acronym>s often involve a host operating system which runs the virtualization software and supports any number of guest operating systems.
The difference between a host operating system and a guest operating system.


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trademark marca comercial FreeBSD Doc (Archived)

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books/es_ES/handbook.po, string 7103