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authorAlex Gronenwoud <alex@linuxfromscratch.org>2003-11-05 22:26:39 +0000
committerAlex Gronenwoud <alex@linuxfromscratch.org>2003-11-05 22:26:39 +0000
commit33ea9e926c8167fa94935d33bcbd7c15cf111f7d (patch)
tree142d997454ff8d608e5427654b18b2263fd2c71f /chapter03/chapter03.xml
parent555fe1ca4c79636035f8bb3d466e52079ea2c45b (diff)
Merging chapter 3 files.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3064 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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<title>Preparing a new partition</title>
<?dbhtml filename="chapter03.html" dir="chapter03"?>
-&c3-introduction;
-&c3-creatingpart;
-&c3-creatingfs;
-&c3-mounting;
+
+<sect1 id="ch03-introduction">
+<title>Introduction</title>
+<?dbhtml filename="introduction.html" dir="chapter03"?>
+
+<para>In this chapter the partition which will host the LFS system is
+prepared. We will create the partition itself, make a file system on it,
+and mount it.</para>
+
+</sect1>
+
+
+<sect1 id="ch03-creatingpart">
+<title>Creating a new partition</title>
+<?dbhtml filename="creatingpart.html" dir="chapter03"?>
+
+<para>In order to build our new Linux system, we will need some space:
+an empty disk partition. If you don't have a free partition, and no room
+on any of your hard disks to make one, then you could build LFS on the
+same partition as the one on which your current distribution is installed.
+This procedure is not recommended for your first LFS install, but if you
+are short on disk space, and you feel brave, take a look at the hint at
+<ulink url="&hints-root;lfs_next_to_existing_systems.txt"/>.</para>
+
+<para>For a minimal system you will need a partition of around 1.2 GB.
+This is enough to store all the source tarballs and compile all the packages.
+But if you intend to use the LFS system as your primary Linux system, you
+will probably want to install additional software, and will need more space
+than this, probably around 2 or 3 GB.</para>
+
+<para>As we almost never have enough RAM in our box, it is a good idea to
+use a small disk partition as swap space -- this space is used by the kernel
+to store seldom-used data to make room in memory for more urgent stuff.
+The swap partition for your LFS system can be the same one as for your host
+system, so you won't have to create another if your host system already uses
+a swap partition.</para>
+
+<para>Start a disk partitioning program such as <userinput>cfdisk</userinput>
+or <userinput>fdisk</userinput> with an argument naming the hard disk upon
+which the new partition must be created -- for example
+<filename>/dev/hda</filename> for the primary IDE disk. Create a Linux native
+partition and a swap partition, if needed. Please refer to the man pages of
+<userinput>cfdisk</userinput> or <userinput>fdisk</userinput> if you don't yet
+know how to use the programs.</para>
+
+<para>Remember the designation of your new partition -- something like
+<filename>hda5</filename>. This book will refer to it as the LFS partition.
+If you (now) also have a swap partition, remember its designation too. These
+names will later be needed for the <filename>/etc/fstab</filename> file.</para>
+
+</sect1>
+
+
+<sect1 id="ch03-creatingfs">
+<title>Creating a file system on the new partition</title>
+<?dbhtml filename="creatingfs.html" dir="chapter03"?>
+
+<para>Now that we have a blank partition, we can create a file system on it.
+Most widely used in the Linux world is the second extended file system (ext2),
+but with the high-capacity hard disks of today the so-called journaling file
+systems are becoming increasingly popular. Here we will create an ext2 file
+system, but build instructions for other file systems can be found at <ulink
+url="&blfs-root;view/stable/postlfs/filesystems.html"/>.</para>
+
+<para>To create an ext2 file system on the LFS partition run the following:</para>
+
+<screen><userinput>mke2fs /dev/xxx</userinput></screen>
+
+<para>Replace <filename>xxx</filename> with the name of the LFS partition
+(something like <filename>hda5</filename>).</para>
+
+<para>If you created a (new) swap partition you need to initialize it as a
+swap partition too (also known as formatting, like you did above with
+<userinput>mke2fs</userinput>) by running:</para>
+
+<screen><userinput>mkswap /dev/yyy</userinput></screen>
+
+<para>Replace <filename>yyy</filename> with the name of the swap
+partition.</para>
+
+</sect1>
+
+
+<sect1 id="ch03-mounting">
+<title>Mounting the new partition</title>
+<?dbhtml filename="mounting.html" dir="chapter03"?>
+
+<para>Now that we've created a file system, we want to be able to access
+the partition. For that, we need to mount it, and have to choose a mount
+point. In this book we assume that the file system is mounted under
+<filename>/mnt/lfs</filename>, but it doesn't matter what directory
+you choose.</para>
+
+<para>Choose a mount point and assign it to the LFS environment variable
+by running:</para>
+
+<screen><userinput>export LFS=/mnt/lfs</userinput></screen>
+
+<para>Now create the mount point and mount the LFS file system by running:</para>
+
+<screen><userinput>mkdir -p $LFS
+mount /dev/xxx $LFS</userinput></screen>
+
+<para>Replace <filename>xxx</filename> with the designation of the LFS
+partition.</para>
+
+<para>If you have decided to use multiple partitions for LFS (say one for
+<filename>/</filename> and another for <filename>/usr</filename>), mount
+them like this:</para>
+
+<screen><userinput>mkdir -p $LFS
+mount /dev/xxx $LFS
+mkdir $LFS/usr
+mount /dev/yyy $LFS/usr</userinput></screen>
+
+<para>Of course, replace <filename>xxx</filename> and <filename>yyy</filename>
+with the appropriate partition names.</para>
+
+<para>You should also ensure that this new partition is not mounted with
+permissions that are too restrictive (such as the nosuid, nodev or noatime
+options). You can run the <userinput>mount</userinput> command without any
+parameters to see with what options the LFS partition is mounted. If
+you see nosuid, nodev or noatime, you will need to remount it.</para>
+
+<para>Now that we've made ourselves a place to work in, we're ready to download
+the packages.</para>
+
+</sect1>
+
</chapter>