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<hr><p align="left"><small>发信人: turbolinux (hoho~神啊，救救我吧...), 信区: Embedded <br>
标 题: Embedded Linux Howto (4) <br>
发信站: BBS 水木清华站 (Thu Jul 12 00:31:33 2001) <br>
<br>
4. Creating a root file system <br>
4.1 Creating a new partition <br>
Quoted from the LFS-HOWTO at http://huizen.dds.nl/~glb/ <br>
<br>
Before we can build our new Linux system, we need to have an empty Linux <br>
partition on which we can build our new system. If you already have a <br>
Linux Native partition available, you can skip this subsection and the <br>
following one. <br>
<br>
Start the fdisk program (or cfdisk if you prefer that program) with <br>
the appropriate hard disk as the option (like /dev/hda if you want to <br>
create a new partition on the primary master IDE disk). Create a Linux <br>
Native partition, write the partition table and exit the (c)fdisk <br>
program. If you get the message that you need to reboot your system to <br>
ensure that that partition table is updated, then please reboot your <br>
system now before continuing. <br>
<br>
4.2 Creating an ext2 file system on the new partition <br>
Quoted from the LFS-HOWTO at http://huizen.dds.nl/~glb/ <br>
<br>
To create a new ext2 file system we use the mke2fs command. Give $LFS as <br>
the only option and the file system will be created. <br>
<br>
From now on I'll refer to this newly created partition as $EMBPART. <br>
$EMBPART should be substituted with the partition you have created. <br>
<br>
4.3 Mounting the partition <br>
To access the newly created filesystem, you have to mount it. For this <br>
create a /mnt/hda? directory and type at shell prompt: <br>
<br>
mkdir /mnt/hda? <br>
mount $EMBPART /mnt/hda? <br>
If you created your partition on /dev/hda4, and you mounted it on <br>
/mnt/hda4, when this document will tell you to copy a file to $dollar; <br>
EMBPART/usr/bin then you will need to copy that file to <br>
/mnt/hda4/usr/bin. <br>
<br>
<br>
<br>
<br>
4.4 Populating the filesystem <br>
The root filesystem must contain everything needed to support a full <br>
Linux system. We will build a directory structure not that far from <br>
the File Hierarchy Standard <br>
<br>
Directories <br>
Directories are made by using the mkdir fonction in the new mounted <br>
filesystem. <br>
<br>
/proc <br>
Directory stub required by the proc filesystem. <br>
<br>
/etc <br>
System configuration file <br>
<br>
/sbin <br>
Critical System binaries <br>
<br>
/bin <br>
Basic binaries considered part of the system <br>
<br>
/lib <br>
Shared Libraries to provide run time support <br>
<br>
/mnt <br>
Mount point for maintenance <br>
<br>
/usr <br>
Additional utilities and applications <br>
<br>
<br>
cd /mnt/hda? <br>
mkdir bin dev home proc sbin usr boot etc liv mnt root tmp var <br>
mkdir -p usr/bin usr/sbin usr/share usr/lib <br>
mkdir -p etc/config etc/default etc/init.d etc/rc.boot <br>
mkdir -p etc/rc0.d etc/rc1.d etc/rc2.d etc/rc3.d etc/rc4.d etc/rc5.d <br>
etc/rc6.d etc/rcS.d <br>
the /dev directory <br>
The dev directory is the stub required to perform devices input / <br>
output. Each file in this directory may be created using the mknod <br>
function. You may avoid losing time by directly copying the required dev <br>
entries from your desktop Linux. <br>
<br>
cp -av /dev/???? /mnt/hda? <br>
<br>
<br>
-- <br>
Welcome to http://www.EnjoySmart.com <br>
-->Dedicated to Smart Home & Network Appliances <br>
<br>
<br>
※ 来源:·BBS 水木清华站 smth.org·[FROM: 166.111.174.125] <br>
</small><hr>
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