[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[c2133bc] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[673b0d8] | 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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| 6 | <sect1 id="space-creatingpartition">
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[9a207c4] | 7 | <title>Creating a New Partition</title>
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[673b0d8] | 8 | <?dbhtml filename="creatingpartition.html"?>
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| 9 |
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[392ab6d] | 10 | <!--Edit Me-->
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| 11 | <para>Like most other operating systems, LFS is usually installed on
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| 12 | a dedicated partition. If you have an empty partition or enough
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| 13 | unpartitioned space on one of your hard disks to make one, using this
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| 14 | for your LFS installation is recommended. However, an LFS system (in
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| 15 | fact even multiple LFS systems) may also be installed on a partition
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| 16 | already occupied by another operating system and the different systems
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| 17 | will co-exist peacefully. The document
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| 18 | <ulink url="&hints-root;/lfs_next_to_existing_systems.txt"/> explains
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| 19 | how to implement this, whereas this book discusses the method of
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| 20 | using a fresh partition for the installation.</para>
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| 21 | <!--End Edit Me-->
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[9a207c4] | 22 |
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| 23 | <para>A minimal system requires a partition of around 1.3 gigabytes
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[69993f4] | 24 | (GB). This is enough to store all the source tarballs and compile
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[9a207c4] | 25 | the packages. However, if the LFS system is intended to be the primary
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| 26 | Linux system, additional software will probably be installed which
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| 27 | will require additional space (2 or 3 GB). The LFS system itself will
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| 28 | not take up this much space. A large portion of this required amount
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| 29 | of space is to provide sufficient free temporary space. Compiling
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| 30 | packages can require a lot of disk space which will be reclaimed after
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[69993f4] | 31 | the package is installed.</para>
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[9a207c4] | 32 |
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[69993f4] | 33 | <para>Because there is not always enough Random Access Memory (RAM)
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| 34 | available for compilation processes, it is a good idea to use a small
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| 35 | disk partition as swap space. This space is used by the kernel to
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| 36 | store seldom-used data to make room in memory for active processes.
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| 37 | The swap partition for an LFS system can be the same as the one used
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| 38 | by the host system, so another swap partition will not need to be
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[38bb44a] | 39 | created if your host system already has one setup.</para>
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[9a207c4] | 40 |
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| 41 | <para>Start a disk partitioning program such as
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[69993f4] | 42 | <command>cfdisk</command> or <command>fdisk</command> with a command
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[9a207c4] | 43 | line option naming the hard disk on which the new partition will be
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[3db8299] | 44 | created—for example <filename class="devicefile">/dev/hda</filename> for
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| 45 | the primary Integrated Drive Electronics (IDE) disk. Create a Linux native
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[9a207c4] | 46 | partition and a swap partition, if needed. Please refer to the man
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| 47 | pages of <command>cfdisk</command> or <command>fdisk</command> if you
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| 48 | do not yet know how to use the programs.</para>
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| 49 |
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| 50 | <para>Remember the designation of the new partition (e.g.,
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[3db8299] | 51 | <filename class="devicefile">hda5</filename>). This book will refer to this as the LFS
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[9a207c4] | 52 | partition. Also remember the designation of the swap partition. These
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| 53 | names will be needed later for the <filename>/etc/fstab</filename>
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| 54 | file.</para>
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[673b0d8] | 55 |
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[d909eb3] | 56 | <para arch="raq2">On a Cobalt RaQ2/Cube2 we use the existing firmware for a boot loader,
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| 57 | it requires an ext2 revision 0 partition to boot from. So here is the
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| 58 | recommended partition for a Cobalt RaQ2/Cube2 system:</para>
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| 59 |
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| 60 | <itemizedlist arch="raq2">
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| 61 | <listitem><para>The first partition should be 50-100 MB.</para></listitem>
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| 62 | <listitem><para>The second partition should be all the remaining space minus the
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| 63 | amount of RAM in the system.</para></listitem>
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| 64 | <listitem><para>The third partition is going to be your swap partition, which will
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| 65 | be the same amount as the RAM installed in the system.</para></listitem>
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| 66 | </itemizedlist>
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| 67 |
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[dd13e76] | 68 | <para arch="alpha">Alphas have one of 2 BIOSes, Alphaboot or SRM. Some models have both
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| 69 | and you can switch between them at powerup. Each bios has a different
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| 70 | boot method. Milo is cool because it can be blown into flash for a
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| 71 | FAST boot, but its built against an older linux kernel and crashes
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| 72 | with some hardware, like a SCSI controller. aboot is simple if you
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| 73 | can use it, but needs BSD partitions. aboot doesn't really let you do
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| 74 | much at boot time that crosses devices. If you load aboot from hda,
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| 75 | your root needs to be on hda. install aboot on hdb if you want to move
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| 76 | your root to hdb. Once linux is loaded, you can do whatever you want.
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| 77 | Milo can handle loading the kernel from one disk and the root on
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| 78 | another.</para>
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| 79 |
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| 80 | <para arch="alpha">If you boot with SRM and aboot, you *MUST* use BSD style partitions.
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| 81 | You *MUST* also leave the first 2 cylinders unused as they will
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| 82 | contain your boot loader. I've read that partition 3 should always be
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| 83 | the full disk even though it overlaps with other partitions, but in my
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| 84 | experience that doesn't matter. If you choose to not use an EXT2 or
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| 85 | EXT3 root filesystem, you'll need to go through some extra hoops to
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| 86 | install aboot.</para>
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| 87 |
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| 88 | <para arch="alpha">If you boot with Milo, use msdos partitions, and make the first
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| 89 | partition large enough for at least 2 kernels (I would use about
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| 90 | 500Megs) and make it a FAT filesystem.</para>
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| 91 |
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[673b0d8] | 92 | </sect1>
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[9a207c4] | 93 |
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