📄 changingowner.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content= "application/xhtml+xml; charset=iso-8859-1" /> <title> 8.5. Changing Ownership </title> <link rel="stylesheet" href="../stylesheets/lfs.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /> <link rel="stylesheet" href="../stylesheets/lfs-print.css" type= "text/css" media="print" /> </head> <body id="lfs" class="CLFS-SVN-20060417-MIPS"> <div class="navheader"> <div class="headertitles"> <h4> Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-MIPS </h4> <h3> Chapter 8. If You Are Going to Chroot </h3> </div> <ul class="headerlinks"> <li class="prev"> <a accesskey="p" href="chroot.html" title= "Entering the Chroot Environment">Prev</a> <p> Entering the Chroot Environment </p> </li> <li class="next"> <a accesskey="n" href="creatingdirs.html" title= "Creating Directories">Next</a> <p> Creating Directories </p> </li> <li class="up"> <a accesskey="u" href="chapter.html" title= "Chapter 8. If You Are Going to Chroot">Up</a>. </li> <li class="home"> <a accesskey="h" href="../index.html" title= "Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-MIPS"> Home</a> </li> </ul> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <h1 class="sect1"> 8.5. Changing Ownership </h1> </div> <p> Currently, the <tt class="filename">/tools</tt> and <tt class= "filename">/cross-tools</tt> directories are owned by the user <span class="emphasis"><em>lfs</em></span>, a user that exists only on the host system. Although the <tt class="filename">/tools</tt> and <tt class="filename">/cross-tools</tt> directories can be deleted once the LFS system has been finished, they can be retained to build additional LFS systems. If the <tt class="filename">/tools</tt> and <tt class="filename">/cross-tools</tt> directories are kept as is, the files are owned by a user ID without a corresponding account. This is dangerous because a user account created later could get this same user ID and would own the <tt class="filename">/tools</tt> directory and all the files therein, thus exposing these files to possible malicious manipulation. </p> <p> To avoid this issue, add the <tt class="systemitem">lfs</tt> user to the new LFS system later when creating the <tt class= "filename">/etc/passwd</tt> file, taking care to assign it the same user and group IDs as on the host system. Alternatively, assign the contents of the <tt class="filename">/tools</tt> and <tt class= "filename">/cross-tools</tt> directories to user <tt class= "systemitem">root</tt> by running the following commands: </p> <pre class="userinput"><kbd class="command">chown -Rv 0:0 /toolschown -Rv 0:0 /cross-tools</kbd></pre> <p> The commands use <em class="parameter"><tt>0:0</tt></em> instead of <em class="parameter"><tt>root:root</tt></em>, because <span><strong class="command">chown</strong></span> is unable to resolve the name “<span class="quote">root</span>” until the <tt class="filename">passwd</tt> file has been created. </p> </div> <div class="navfooter"> <ul> <li class="prev"> <a accesskey="p" href="chroot.html" title= "Entering the Chroot Environment">Prev</a> <p> Entering the Chroot Environment </p> </li> <li class="next"> <a accesskey="n" href="creatingdirs.html" title= "Creating Directories">Next</a> <p> Creating Directories </p> </li> <li class="up"> <a accesskey="u" href="chapter.html" title= "Chapter 8. If You Are Going to Chroot">Up</a>. </li> <li class="home"> <a accesskey="h" href="../index.html" title= "Cross-Compiled Linux From Scratch - Version CLFS-SVN-20060417-MIPS"> Home</a>. </li> </ul> </div> </body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -