mini2440无盘启动------文件系统制作以及从u-boot启动无盘mini2440-----3

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③文件系统制作

要用的的工具：busybox-1.13.3.tar.gz

null@ubuntu:~/work/test$ mkdir rootfs

null@ubuntu:~/work/test$ pwd

/home/null/work/test

这是我做实验的目录，rootfs用来存放制作的文件系统

进入rootfs目录

null@ubuntu:~/work/test$ cd rootfs/

创建以下目录：

null@ubuntu:~/work/test/rootfs$ mkdir bin dev etc lib proc sbin sys usr mnt tmp var

null@ubuntu:~/work/test/rootfs$ mkdir usr/bin usr/lib usr/sbin lib/modules

进入dev创建字符设备文件：

null@ubuntu:~/work/test/rootfs/dev$ sudo mknod -m 666 console c 5 1

[sudo] password for null:

null@ubuntu:~/work/test/rootfs/dev$ sudo mknod -m 666 null c 1 3

进入etc目录创建 fstab inittab profile 文件，创建init.d目录，然后再init.d下创建rcS文件

具体文件内容如下

#vim fstab

内容：

proc /proc proc defaults 0 0

sysfs /sys sysfs defaults 0 0

#vim inittab

内容：

::sysinit:/etc/init.d/rcS

::respawn:-/bin/sh

::ctrlaltdel:/bin/umount -a -r

#vim probile

内容：

# /etc/profile: system-wide .profile file for the Bourne shells

echo

echo -n "Processing /etc/profile... "

# no-op

echo "Done"

echo

#vim rcS

内容：

#! /bin/sh

/bin/mount -a

/bin/mount -t tmpfs mdev /dev

/bin/echo /sbin/mdev > /proc/sys/kernel/hotplug

mdev -s

然后进入刚才的内核文件中：

执行下面的命令

null@ubuntu:~/work/linux-kernel/linux-2.6.32.2$ make modules

要等会儿

然后再执行：

null@ubuntu:~/work/linux-kernel/linux-2.6.32.2$ make modules_install ARCH=arm INSTALL_MOD_PATH=/home/null/work/test/rootfs

这个/home/null/work/test/rootfs是刚才文件系统安排的位置

进入/home/null/work/test/rootfs/lib/modules

会看到：

null@ubuntu:~/work/test/rootfs/lib/modules$ ls

2.6.32.2

下面是编译busybox

结构如上。

执行：

null@ubuntu:~/work/test/busybox-1.13.3$ make menuconfig

出现如下：

进入Busybox Settings ---> Build Options—>

选择：

Build BusyBox as a static binary (no shared libs)

然后选择：

Cross Compiler prefix

交叉编译工具链使用arm-linux-

然后进入：

Busybox Settings ---> Installation Options --->

如下：

文件系统的安装目录是：/home/null/work/test/rootfs ß这个看你安装的目录

如果不修改要破坏服务器的文件系统。。

保存退出：

执行如下命令：

null@ubuntu:~/work/test/busybox-1.13.3$ make ARCH=arm CROSS_COMPILE=arm-linux-

等会儿

null@ubuntu:~/work/test/busybox-1.13.3$ make install

结果：

--------------------------------------------------

You will probably need to make your busybox binary

setuid root to ensure all configured applets will

work properly.

进入文件系统目录：会看到如下：

null@ubuntu:~/work/test/rootfs$ ls

bin dev etc lib linuxrc mnt proc sbin sys tmp usr var

然后我们把制作好的文件系统挂载

要修改/etc/exports文件，

null@ubuntu:~$ sudo vim /etc/exports

增加如下：

/home/null/work/test/rootfs *(rw,sync,no_root_squash)

这里增加的/home/null/work/test/rootfs 是我制作的文件系统的目录，你的可能不一样。

然后重启nfs服务器

如下：

把编译好的内核uImage拷贝到rootfs目录下。

下面启动服务器上的内核和文件系统。

这里设置u-boot ip和服务器ip就不说了。

这里要设置的是如下的内容：

setenv bootargs console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.107:/home/null/work/test/rootfs ip=192.168.1.109:smdk2440a.embedclub.com:eth0:off

/home/null/work/test/rootfs ß这个是我们服务器上的制作好的文件系统。

192.168.1.107 ß服务器IP

下面是我的u-boot参数：

bootcmd=nand read 0x30008000 60000 500000;bootm 0x30008000

bootdelay=1

baudrate=115200

ethaddr=08:08:11:18:12:27

gatewayip=192.168.1.1

netmask=255.255.255.0

embedclub=bmp d 70000

stdin=serial

stdout=serial

stderr=serial

lcdtype=w

ethact=dm9000

ipaddr=192.168.1.108

serverip=192.168.1.107

bootargs=console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.107:/home/null/work/test/rootfs ip=192.168.1.109:smdk2440a.embedclub.com:eth0:off

下面我们启动无盘mini2440：

nfs 31000000 192.168.1.107:/home/null/work/test/rootfs/uImage;bootm 31000000

内核启动参数如下：

Environment size: 428/131068 bytes

[u-boot@SMDK2440A]# nfs 31000000 192.168.1.107:/home/null/work/test/rootfs/uImage;bootm 31000000

dm9000 i/o: 0x20000300, id: 0x90000a46

DM9000: running in 16 bit mode

MAC: 08:08:11:18:12:27

operating at 100M full duplex mode

Using dm9000 device

File transfer via NFS from server 192.168.1.107; our IP address is 192.168.1.108

Filename '/home/null/work/test/rootfs/uImage'.

Load address: 0x31000000

Loading: #################################################################

#################################################################

#################################

done

Bytes transferred = 2162436 (20ff04 hex)

## Booting kernel from Legacy Image at 31000000 ...

Image Name: Linux-2.6.32.2

Created: 2012-11-29 12:45:53 UTC

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 2162372 Bytes = 2.1 MB

Load Address: 30008000

Entry Point: 30008000

Verifying Checksum ... OK

Loading Kernel Image ... OK

Starting kernel ...

Uncompressing Linux....................................................................................................................................... done, booting the kernel.

Linux version 2.6.32.2 (null@ubuntu) (gcc version 4.4.3 (ctng-1.6.1) ) #1 Thu Nov 29 04:34:06 PST 2012

CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177

CPU: VIVT data cache, VIVT instruction cache

Machine: FriendlyARM Mini2440 development board

Memory policy: ECC disabled, Data cache writeback

CPU S3C2440A (id 0x32440001)

S3C244X: core 405.000 MHz, memory 101.250 MHz, peripheral 50.625 MHz

CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256

Kernel command line: console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.107:/home/null/work/test/rootfs ip=192.168.1.109:smdk2440a.embedclub.com:eth0:off

PID hash table entries: 256 (order: -2, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory: 64MB = 64MB total

Memory: 60384KB available (3768K code, 462K data, 168K init, 0K highmem)

SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

Hierarchical RCU implementation.

NR_IRQS:85

irq: clearing subpending status 00000007

irq: clearing subpending status 00000002

Console: colour dummy device 80x30

console [ttySAC0] enabled

Calibrating delay loop... 201.93 BogoMIPS (lpj=504832)

Mount-cache hash table entries: 512

CPU: Testing write buffer coherency: ok

NET: Registered protocol family 16

S3C2440: Initialising architecture

S3C2440: IRQ Support

DMA channel 0 at c4808000, irq 33

DMA channel 1 at c4808040, irq 34

DMA channel 2 at c4808080, irq 35

DMA channel 3 at c48080c0, irq 36

S3C244X: Clock Support, DVS off

bio: create slab <bio-0> at 0

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

s3c-i2c s3c2440-i2c: slave address 0x10

s3c-i2c s3c2440-i2c: bus frequency set to 98 KHz

s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

msgmni has been set to 118

alg: No test for stdrng (krng)

io scheduler noop registered

io scheduler anticipatory registered (default)

io scheduler deadline registered

io scheduler cfq registered

Console: switching to colour frame buffer device 80x40

fb0: s3c2410fb frame buffer device

leds initialized

buttons initialized

pwm initialized

adc initialized

s3c2440-uart.0: s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440

s3c2440-uart.1: s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440

s3c2440-uart.2: s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440

brd: module loaded

s3c24xx-nand s3c2440-nand: Tacls=3, 29ns Twrph0=7 69ns, Twrph1=3 29ns

s3c24xx-nand s3c2440-nand: NAND soft ECC

NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)

Scanning device for bad blocks

Bad eraseblock 558 at 0x0000045c0000

Bad eraseblock 891 at 0x000006f60000

Bad eraseblock 1114 at 0x000008b40000

Bad eraseblock 1664 at 0x00000d000000

Bad eraseblock 1665 at 0x00000d020000

Bad eraseblock 1726 at 0x00000d7c0000

Bad eraseblock 1748 at 0x00000da80000

Creating 5 MTD partitions on "NAND 256MiB 3,3V 8-bit":

0x000000000000-0x000000040000 : "supervivi"

uncorrectable error :

0x000000040000-0x000000060000 : "param"

ftl_cs: FTL header not found.

0x000000060000-0x000000560000 : "Kernel"

ftl_cs: FTL header not found.

0x000000560000-0x000040560000 : "root"

mtd: partition "root" extends beyond the end of device "NAND 256MiB 3,3V 8-bit" -- size truncated to 0xfaa0000

ftl_cs: FTL header not found.

0x000000000000-0x000040000000 : "nand"

mtd: partition "nand" extends beyond the end of device "NAND 256MiB 3,3V 8-bit" -- size truncated to 0x10000000

uncorrectable error :

dm9000 Ethernet Driver, V1.31

eth0: dm9000e at c4872300,c4876304 IRQ 51 MAC: 08:90:90:90:90:90 (chip)

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

s3c2410-ohci s3c2410-ohci: S3C24XX OHCI

s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1

s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000

usb usb1: configuration #1 chosen from 1 choice

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

usbcore: registered new interface driver libusual

s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes

mice: PS/2 mouse device common for all mice

s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling

s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0

i2c /dev entries driver

s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq enabled

cpuidle: using governor ladder

sdhci: Secure Digital Host Controller Interface driver

sdhci: Copyright(c) Pierre Ossman

s3c-sdi s3c2440-sdi: powered down.

s3c-sdi s3c2440-sdi: mmc0 - using pio, sw SDIO IRQ

usbcore: registered new interface driver hiddev

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

Advanced Linux Sound Architecture Driver Version 1.0.21.

No device for DAI UDA134X

No device for DAI s3c24xx-i2s

S3C24XX_UDA134X SoC Audio driver

UDA134X SoC Audio Codec

asoc: UDA134X <-> s3c24xx-i2s mapping ok

ALSA device list:

#0: S3C24XX_UDA134X (UDA134X)

TCP cubic registered

NET: Registered protocol family 17

s3c2410-rtc s3c2410-rtc: hctosys: invalid date/time

eth0: link down

IP-Config: Unable to set interface netmask (-22).

Looking up port of RPC 100003/2 on 192.168.1.107

eth0: link up, 100Mbps, full-duplex, lpa 0x4DE1

Looking up port of RPC 100005/1 on 192.168.1.107

VFS: Mounted root (nfs filesystem) on device 0:14.

Freeing init memory: 168K

Processing /etc/profile... Done

# ls

bin etc linuxrc proc sys uImage var

dev lib mnt sbin tmp usr

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