lfs-book-i18n/zh_CN/chapter07/kernfs.po

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#. type: Content of: <sect1><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:11
msgid "Preparing Virtual Kernel File Systems"
msgstr ""

#. type: Content of: <sect1><indexterm><primary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:14
msgid "/dev/*"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:17
msgid ""
"Various file systems exported by the kernel are used to communicate to and "
"from the kernel itself. These file systems are virtual in that no disk space "
"is used for them. The content of the file systems resides in memory."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:22
msgid "Begin by creating directories onto which the file systems will be mounted:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:25
#, no-wrap
msgid "<userinput>mkdir -pv $LFS/{dev,proc,sys,run}</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:28
msgid "Creating Initial Device Nodes"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:30
msgid ""
"When the kernel boots the system, it requires the presence of a few device "
"nodes, in particular the <filename class=\"devicefile\">console</filename> "
"and <filename class=\"devicefile\">null</filename> devices. The device nodes "
"must be created on the hard disk so that they are available before the "
"kernel populates <systemitem class=\"filesystem\">/dev</systemitem>), and "
"additionally when Linux is started with "
"<parameter>init=/bin/bash</parameter>. Create the devices by running the "
"following commands:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:40
#, no-wrap
msgid ""
"<userinput>mknod -m 600 $LFS/dev/console c 5 1\n"
"mknod -m 666 $LFS/dev/null c 1 3</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:46
msgid "Mounting and Populating /dev"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:48
msgid ""
"The recommended method of populating the <filename "
"class=\"directory\">/dev</filename> directory with devices is to mount a "
"virtual filesystem (such as <systemitem "
"class=\"filesystem\">tmpfs</systemitem>) on the <filename "
"class=\"directory\">/dev</filename> directory, and allow the devices to be "
"created dynamically on that virtual filesystem as they are detected or "
"accessed. Device creation is generally done during the boot process by "
"Udev. Since this new system does not yet have Udev and has not yet been "
"booted, it is necessary to mount and populate <filename "
"class=\"directory\">/dev</filename> manually. This is accomplished by bind "
"mounting the host system's <filename class=\"directory\">/dev</filename> "
"directory. A bind mount is a special type of mount that allows you to create "
"a mirror of a directory or mount point to some other location. Use the "
"following command to achieve this:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:63
#, no-wrap
msgid "<userinput>mount -v --bind /dev $LFS/dev</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:68
msgid "Mounting Virtual Kernel File Systems"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:70
msgid "Now mount the remaining virtual kernel filesystems:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:72
#, no-wrap
msgid ""
"<userinput>mount -v --bind /dev/pts $LFS/dev/pts\n"
"mount -vt proc proc $LFS/proc\n"
"mount -vt sysfs sysfs $LFS/sys\n"
"mount -vt tmpfs tmpfs $LFS/run</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:105
msgid ""
"In some host systems, <filename>/dev/shm</filename> is a symbolic link to "
"<filename class=\"directory\">/run/shm</filename>.  The /run tmpfs was "
"mounted above so in this case only a directory needs to be created."
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter07/kernfs.xml:110
#, no-wrap
msgid ""
"<userinput>if [ -h $LFS/dev/shm ]; then\n"
"  mkdir -pv $LFS/$(readlink $LFS/dev/shm)\n"
"fi</userinput>"
msgstr ""