source: BOOK/boot/common/changingowner.xml @ 6c19f5e

clfs-3.0.0-systemdsystemd
Last change on this file since 6c19f5e was d2ecc65, checked in by Chris Staub <chris@…>, 10 years ago

Reorganized boot section

  • Property mode set to 100644
File size: 1.9 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-boot-changingowner">
9  <?dbhtml filename="changingowner.html"?>
10
11  <title>Changing Ownership</title>
12
13  <para os="a">Currently, the <filename class="directory">/tools</filename>
14  and <filename class="directory">/cross-tools</filename> directories
15  are owned by the user <emphasis>clfs</emphasis>, a user that
16  exists only on the host system. Although <filename
17  class="directory">/tools</filename> and <filename
18  class="directory">/cross-tools</filename> can be deleted once the CLFS
19  system has been finished, they can be retained to build
20  additional CLFS systems. If the <filename class="directory">/tools</filename>
21  and <filename class="directory">/cross-tools</filename> directories are
22  kept as is, the files are owned by a user ID without a corresponding
23  account. This is dangerous because a user account created later could
24  get this same user ID and would own these directories and all the files
25  therein, thus exposing those files to possible malicious manipulation.</para>
26
27  <para os="b">One possible fix for this issue might be to add the
28  <systemitem class="username">clfs</systemitem> user to the new CLFS system
29  later when creating the <filename>/etc/passwd</filename> file, taking care
30  to assign it the same user and group IDs as on the host system. Alternatively,
31  assign the contents of the <filename class="directory">/tools</filename>
32  and <filename class="directory">/cross-tools</filename> directories to
33  user <systemitem class="username">root</systemitem> by running the
34  following commands:</para>
35
36<screen os="c"><userinput>chown -Rv 0:0 ${CLFS}/tools
37chown -Rv 0:0 ${CLFS}/cross-tools</userinput></screen>
38
39</sect1>
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