source: BOOK/partitioning/common/creatingpartition.xml @ 72c2b34

Last change on this file since 72c2b34 was 72c2b34, checked in by William Harrington <kb0iic@…>, 9 years ago

Add separate /usr filesyste note to partitioning instructions.

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3  "" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
8<sect1 id="ch-partitioning-creatingpartition">
9  <?dbhtml filename="creatingpartition.html"?>
11  <title>Creating a New Partition</title>
13  <para os="a">Like most other operating systems, CLFS is usually installed
14  on a dedicated partition. The recommended approach to building a CLFS
15  system is to use an available empty partition or, if you have enough
16  unpartitioned space, to create one. However, if you're building for a
17  different architecture you can simply build everything in
18  <quote>/mnt/clfs</quote> (or whatever directory you want to use) and
19  transfer it to your target machine. If you do not plan to use a separate
20  partition for building CLFS, you can skip the rest of this chapter and
21  continue on to <xref linkend="chapter-getting-materials"/>.</para>
23  <para os="b">A minimal system requires around 6 gigabytes (GB).
24  This is enough to store all the source tarballs and compile the packages. The CLFS
25  system itself will not take up this  much room. A large portion of this requirement
26  is to provide sufficient free temporary storage. Compiling packages can require a
27  lot of disk space which will be reclaimed after the package is installed. If the
28  CLFS system is intended to be the primary Linux system,  additional software will
29  probably be installed which will require additional space (2-10 GB). </para>
31  <para os="c">Because there is not always enough Random Access Memory (RAM)
32  available for compilation processes, it is a good idea to use a small disk
33  partition as swap space. This is used by the kernel to store seldom-used
34  data and leave more memory available for active processes. The swap
35  partition for a CLFS system can be the same as the one used by the host
36  system, in which case it is not necessary to create another one.</para>
38  <para os="d">As the <systemitem class="username">root</systemitem> user,
39  start a disk partitioning program such as <command>cfdisk</command>
40  or <command>fdisk</command> with a command line option naming the hard
41  disk on which the new partition will be created&mdash;for example
42  <filename class="devicefile">/dev/sda</filename> for the primary
43  Integrated Drive Electronics (IDE) or Serial ATA (SATA) disk. Create a Linux
44  native partition and a swap partition, if needed. Please refer to
45  <filename>cfdisk(8)</filename> or <filename>fdisk(8)</filename> if you
46  do not yet know how to use the programs.</para>
48  <para os="e">Remember the designation of the new partition (e.g.,
49  <filename class="devicefile">sda5</filename>). This book will refer to
50  this as the CLFS partition. Also remember the designation of the swap
51  partition. These names will be needed later for the
52  <filename>/etc/fstab</filename> file.</para>
54  <note><para>SYSTEMD does not support a configuration with a separate
55  <filename class="directory">/usr</filename> filesystem. An initramfs which
56  mounts a separate <filename class="directory">/usr</filename> is required.
57  </para></note>
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