--by wenwu
首先感谢http://hi.baidu.com/zkheartboy/blog/item/a73927ad3629c9094a36d6f1.html上提供的方法,我在写这篇文章的时候参考了作者的一些方法。
下面的所有操作,在 ubuntu7.10下全部调试通过。
但仅供参考!
我在写的时候,将shell命令完整部分都粘贴了下来,希望你能看清我在操作时的一些路径,这个很重要。
另外,我也是新手~
我写出来,一是希望能帮助其他像我一样的新手,二是希望自己能够从中学到更多的东西。也希望有更多的人能将自己的经历写下来,共同交流!
一、搭建开发环境
在www.uclinux.org上下载以下两个包:
交叉开发工具:arm-elf-tools-20040427.sh
uClinux的源码包:uClinux-dist-20040408.tar.gz
好像现在arm-elf-tools-20040427.sh不太好下,你也可以下载arm-elf-tools-20030314.sh
安装交叉开发工具:进入arm-elf-tools-20040427.sh所在的目录,执行以下命令进行安装:
代码: 全选
$sudo chmod +x arm-elf-tools-20040427.sh
$sudo ./arm-elf-tools-20040427.sh
解压uClinux源码包:
用以下命令:
代码: 全选
$tar zxvf uClinux-dist-20040408.tar.gz
SkyEye是开源软件的一个项目,SkyEye的目标是在Linux和Windows操作系统里提供一个完全的仿真环境。SkyEye仿真环境相当于一个嵌入式计算机系统,你可以在SkyEye里运行一些嵌入式Linux操作系统,如ARMLinux,uClinux,uc/OS-II(ucos-ii)等,并能分析和调试它们的源代码。
如果你想知道关于SkyEye和嵌入式系统更详细的信息,请访问下面的站点:
www.SkyEye.org
http://www.skyeye.org/index_cn.html
安装SkyEye
网上介绍了很多安装方法,其实在ubuntu里面安装最方便:
代码: 全选
wenwu@wenwu-desktop:~$ sudo apt-get install skyeye
在shell 里面直接键入skyeye后看到如下说明:
代码: 全选
**************************** WARNING **********************************
If you want to run ELF image, you should use -e option to indicate
your elf-format image filename. Or you only want to run binary image,
you need to set the filename of the image and its entry in skyeye.conf.
***********************************************************************
big_endian is false.
Failed to open skyeye config file skyeye.conf in the same directory
error: No such file or directory
------------------------- SkyEye -V1.2 ---------------------------
Usage: SkyEye [options] -e program [program args]
Default mode is STANDALONE mode
------------------------------------------------------------------
Options:
-e exec-file the (ELF executable format)kernel file name.
-l load_address,load_address_mask
Load ELF file to another address, not its entry.
-b specify the data type is big endian when non "-e" option.
-d in GDB Server mode (can be connected by GDB).
-c config-file the skyeye configure file name.
-h The SkyEye command options, and ARCHs and CPUs simulated.
------------------------------------------------------------------
----------- Architectures and CPUs simulated by SkyEye-------------
-------- ARM architectures ---------
at91
lpc
s3c4510b
s3c44b0x
s3c44b0
s3c3410x
ep7312
lh79520
ep9312
cs89712
sa1100
pxa_lubbock
pxa_mainstone
at91rm92
s3c2410x
s3c2440
sharp_lh7a400
ns9750
lpc2210
ps7500
integrator
-------- BlackFin architectures ----
bf533
当然,如果你的源里面没有 skyeye,就尝试从下面的方法安装:
首先下载skyeye:
下载地址:http://gro.clinux.org/projects/skyeye/
在这个网址里面有如下两个版本,我建议用1.2.2版本的,1.2.3版本的在安装时往往存在一些问题
skyeye_1_2_2_Rel.tar.bz2
skyeye_1_2_3_Rel.tar.bz2
因为在安装skyeye 时会用到一些别的包,所以在新立得软件包管理器中找到下面的软件包:binutils-dev 标记并安装
下面是关于这个软件包的描述
The GNU binary utilities (BFD development files)
This package includes header files and static libraries necessary to build
programs which use the GNU BFD library, which is part of binutils. Note
that building Debian packages which depend on the shared libbfd is Not
Allowed.
最后使用make命令进行软件的安装,编译完毕后会在binary生成一个skyeye可执行文件,该文件就是skyeye模拟器了。
使用make命令的时候可以加入一些选项参数,例如:
不允许DBCT
$make NO_DBCT=1
不支持LCD
$make NO_LCD=1
不支持BFD库
$make NO_BFD=1
不支持网络设备
$make NO_NET=1
如果在binary目录下生成了skyeye文件,那么安装成功。
为了可以在shell 里面直接运用skyeye命令,将这个路径/source/skyeye_1_2_2_Rel/binary 加入到系统环境变量中
代码: 全选
$gedit /etc/environment
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/slickedit/bin:/source/skyeye_1_2_2_Rel/binary"
重启系统后生效
但我一再提示你,如果你的ubuntu源里面有skyeye,就不要再进行上面那些繁琐的步骤,一条命令apt-get install skyeye就搞定!
三、测试arm-elf-tool 的工作情况
建立一个源文件键入以下代码:
代码: 全选
/*test.c*/
#include <stdio.h>
int main()
{
int i;
for(i=0;i<6;i++)
{
printf("i=%d\n",i);
printf("Hello,embedded linux!\n");
}
return 0;
}
代码: 全选
wenwu@wenwu-desktop:/source/work/test$ arm-elf-gcc -Wl,-elf2flt -o test test.c
wenwu@wenwu-desktop:/source/work/test$ ls
test test.c test.gdb
其中-elf2flt参数是将elf文件格式转为flat文件格式,这个工具是在你安装交叉编译器产生的.
也可以写一个makefile测试,下面是我写的一个,仅供参考:
代码: 全选
#begin
CC=arm-elf-gcc
LDFLAGS=-Wl,-elf2flt
LIBS=
OBJS=test.o
all:test
hello:$(OBJS)
$(CC) $(CFLAGS) $(LDFLAGS) -o hello $(OBJS)
clean:
rm -rf *.o *.elf *.gdb test
#end
代码: 全选
wenwu@wenwu-desktop:/source/work/test$ file test
test: BFLT executable - version 4 ram
代码: 全选
wenwu@wenwu-desktop:/source/work/test$ ./test
bash: ./test:无法执行二进制文件
代码: 全选
wenwu@wenwu-desktop:/source/work/test$ arm-elf-gcc -S -o test.S test.c
wenwu@wenwu-desktop:/source/work/test$ file test.S
test.S: ASCII assembler program text
四、测试这个程序:
测试这个程序需要用到一个工具skyeye-testsuits,可以在下面的网址下载:
http://gro.clinux.org/projects/skyeye/
网址里面有testsuite2.1.tar.bz2 但是在这里我们直接下载1.2.0版的二进制的工具包,skyeye-binary-testutils-1.2.0.tar.bz2
下载后解压
代码: 全选
wenwu@wenwu-desktop:/source$ tar jxvf skyeye-binary-testutils-1.2.0.tar.bz2
代码: 全选
wenwu@wenwu-desktop:/source$ ls skyeye-binary-testutils-1.2.0/at91x40/uclinux2
boot.rom linux readme skyeye.conf
可以在命令行里键入以下代码,
代码: 全选
skyeye -e linux
代码: 全选
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|
刚才我们不是写了一个代码吗?下面我们就看看怎么运行我们的程序:
首先在skyeye-binary-testutils-1.2.0/at91x40/uclinux2这个目录里面建立一个文件夹:romfs
这个目录主要用来存放用户程序,就是最后你写的程序也要拷到这个目录里面。
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ mkdir romfs
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ ls
boot.rom linux readme romfs skyeye.conf
代码: 全选
wenwu@wenwu-desktop:/mnt$ ls
wenwu@wenwu-desktop:/mnt$ sudo mkdir tmp
wenwu@wenwu-desktop:/mnt$ ls
tmp
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ sudo mount -o loop boot.rom /mnt/tmp/
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ ls /mnt/tmp/
bin dev etc home lib mnt proc sbin tmp usr var
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ sudo cp -r /mnt/tmp/* ./romfs/
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ ls romfs/
bin dev etc home lib mnt proc sbin tmp usr var
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ sudo cp /source/work/test/test romfs/bin/
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ ls romfs/bin/
boa dhcpcd ftp gdbserver inetd login ping route telnet test
busybox expand ftpd ifconfig init mount reboot sh telnetd umount
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ sudo genromfs -f boot.rom -d ./romfs/
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ ls -l boot.rom
-rw-r--r-- 1 wenwu wenwu 1561600 2007-11-11 14:03 boot.rom
代码: 全选
wenwu@wenwu-desktop:/source/skyeye-binary-testutils-1.2.0/at91x40/uclinux2$ skyeye -e linux
big_endian is false.
arch: arm
cpu info: armv3, arm7tdmi, 41007700, fff8ff00, 0
mach info: name at91, mach_init addr 0x8057550
ethmod num=1, mac addr=0:4:3:2:1:f, hostip=10.0.0.1
can't find device module: (name:net, type:(null))
log_info: log is off.
log_info:log file is /tmp/test.log, fd is 0x80f9318
log_info: log start clock 3200000
log_info: log end clock 3330000
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm7100 mmu ops
Loaded ROM ./boot.rom
start addr is set to 0x01000000 by exec file.
Linux version 2.4.20-uc0 (chy@localhost.localdomain) (gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from http://www.snapgear.com/)) #7 �� 8�� 1 19:43:07 CST 2003
Processor: Atmel AT91M40xxx revision 0
Architecture: EB01
On node 0 totalpages: 1024
zone(0): 0 pages.
zone(1): 1024 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/rom0
Calibrating delay loop... 12.97 BogoMIPS
Memory: 4MB = 4MB total
Memory: 2984KB available (833K code, 181K data, 40K init)
Dentry cache hash table entries: 512 (order: 0, 4096 bytes)
Inode cache hash table entries: 512 (order: 0, 4096 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 1024 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Atmel USART driver version 0.99
ttyS0 at 0xfffd0000 (irq = 2) is a builtin Atmel APB USART
ttyS1 at 0xfffcc000 (irq = 3) is a builtin Atmel APB USART
Blkmem copyright 1998,1999 D. Jeff Dionne
Blkmem copyright 1998 Kenneth Albanowski
Blkmem 1 disk images:
0: 1400000-157D3FF [VIRTUAL 1400000-157D3FF] (RO)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
SkyEye NE2k Ethernet driver version 0.2 (2003-04-27)
sene2k dev name: eth0: <6>NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
sys_mount:dev_name /dev/root,dir_name /root, type ext2, flag 0x8001, data 0
sys_mount:1 data_page 1122000, type_page 113bf74, dev_page 0, dir_page 8001
sys_mount:2 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
sys_mount:3 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
sys_mount:4 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
sys_mount:dev_name /dev/root,dir_name /root, type romfs, flag 0x8001, data 0
sys_mount:1 data_page 0, type_page 117f000, dev_page 117d000, dir_page 8001
sys_mount:2 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
sys_mount:3 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
sys_mount:4 data_page 0, type_page 117f000, dev_page 117d000, dir_page 117e000
VFS: Mounted root (romfs filesystem) readonly.
sys_mount:dev_name .,dir_name /, type <NULL>, flag 0x2000, data 0
sys_mount:1 data_page 111c120, type_page 0, dev_page 10e5d00, dir_page 10e5174
sys_mount:2 data_page 0, type_page 0, dev_page 117f000, dir_page 1122000
sys_mount:3 data_page 0, type_page 0, dev_page 117f000, dir_page 1122000
sys_mount:4 data_page 0, type_page 0, dev_page 117f000, dir_page 1122000
Shell invoked to run file: /etc/rc
Command: hostname GDB-ARMulator
Command: /bin/expand /etc/ramfs.img /dev/ram0
Command: mount -t proc proc /proc
sys_mount:dev_name /proc,dir_name /proc, type proc, flag 0xc0ed0000, data 11d0008
sys_mount:1 data_page 1000, type_page 1002, dev_page 118a008, dir_page c0ed0000
sys_mount:2 data_page 1188000, type_page 11a0000, dev_page 1189000, dir_page 1122000
sys_mount:3 data_page 1188000, type_page 11a0000, dev_page 1189000, dir_page 1122000
sys_mount:4 data_page 1188000, type_page 11a0000, dev_page 1189000, dir_page 1122000
mount: /etc/mtab: Read-only file system
Command: mount -t ext2 /dev/ram0 /var
sys_mount:dev_name /dev/ram0,dir_name /var, type ext2, flag 0xc0ed0000, data 11d0008
sys_mount:1 data_page 111c260, type_page 119fe40, dev_page 0, dir_page c0ed0000
sys_mount:2 data_page 1186000, type_page 1188000, dev_page 1187000, dir_page 1122000
sys_mount:3 data_page 1186000, type_page 1188000, dev_page 1187000, dir_page 1122000
sys_mount:4 data_page 1186000, type_page 1188000, dev_page 1187000, dir_page 1122000
mount: /etc/mtab: Read-only file system
Command: mkdir /var/tmp
Command: mkdir /var/log
Command: mkdir /var/run
Command: mkdir /var/lock
Command: cat /etc/motd
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|
GDB/ARMulator support by <davidm@snapgear.com>
For further information check:
http://www.uclinux.org/
Command: /bin/ifconfig eth0 up 10.0.0.2
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/>
代码: 全选
/> cd bin
/bin> ./test
i=0
Hello,embedded linux!
i=1
Hello,embedded linux!
i=2
Hello,embedded linux!
i=3
Hello,embedded linux!
i=4
Hello,embedded linux!
i=5
Hello,embedded linux!
/bin>
五、编译我们的uClinux内核
首先解压
代码: 全选
tar zxvf uClinux-dist-20040408.tar.gz
shell 中进 uClinux-dist目录,执行make menuconfig进行配置,我猜你遇到了和我一样的问题:
代码: 全选
wenwu@wenwu-desktop:/source/uClinux-dist$ make menuconfig
config/mkconfig > config.in
make -C /source/uClinux-dist/config/scripts/lxdialog all
make[1]: Entering directory `/source/uClinux-dist/config/scripts/lxdialog'
/usr/bin/ld: cannot find -lncurses
collect2: ld 返回 1
-e
>> Unable to find the Ncurses libraries.
>>
>> You must have Ncurses installed in order
>> to use 'make menuconfig'
make[1]: *** [ncurses] 错误 1
make[1]: Leaving directory `/source/uClinux-dist/config/scripts/lxdialog'
make: *** [menuconfig] 错误 2
wenwu@wenwu-desktop:/source/uClinux-dist$
在新立得软件管理器中找到libncurses5-dev,安装
用的朋友喜欢用make xconfig,直接运行会出现如下错误:
代码: 全选
wenwu@wenwu-desktop:/source/uClinux-dist$ sudo make xconfig
config/mkconfig > config.in
make -C /source/uClinux-dist/config/scripts tkparse
make[1]: Entering directory `/source/uClinux-dist/config/scripts'
make[1]: “tkparse”是最新的。
make[1]: Leaving directory `/source/uClinux-dist/config/scripts'
ARCH=dummy /source/uClinux-dist/config/scripts/tkparse < config.in > config.tmp
cat /source/uClinux-dist/config/scripts/header.tk >> ./config.tk
cat config.tmp >> config.tk
rm -f config.tmp
echo "set defaults \"/dev/null\"" >> config.tk
echo "set help_file \"config/Configure.help\"" >> config.tk
cat /source/uClinux-dist/config/scripts/tail.tk >> config.tk
chmod 755 config.tk
make: wish:命令未找到
make: *** [xconfig] 错误 127
tcl8.4
tcl8.4-dev
tk8.4
k8.4-dev
然后再进行配置:在下面这个选项里面选择GDB ARMulator,怎么选择应该不用再说了吧?
代码: 全选
--- Select the Vendor you wish to target
(GDB) Vendor
--- Select the Product you wish to target
(ARMulator) GDB Products
代码: 全选
(linux-2.4.x) Kernel Version
(uC-libc) Libc Version
[ ] Default all settings (lose changes)
[ ] Customize Kernel Settings
[ ] Customize Vendor/User Settings
[ ] Update Default Vendor Settings
代码: 全选
Do you wish to save your new kernel configuration?
< Yes > < No >
这个时候就可以进行编译了,编译首先用make dep
然后用make
很不幸,我们的错误总是不断存在!
代码: 全选
arm/clone.S: Assembler messages:
arm/clone.S:34: Error: undefined symbol `EINVAL' in operation
make[3]: *** [arm/clone.o] 错误 1
make[3]: Leaving directory `/source/uClinux-dist/lib/libc/sysdeps'
make[2]: *** [subdirs] 错误 1
make[2]: Leaving directory `/source/uClinux-dist/lib/libc'
make[1]: *** [all] 错误 2
make[1]: Leaving directory `/source/uClinux-dist/lib'
make: *** [subdirs] 错误 1
其实很多人都遇到了这个错误 ,是上面的库文件选择错了,什么?错了你还写在上面?我是想让你有更深的记忆!
make clean把上次编译过程生成的中间文件删除
然后make menuconfig
这次,我们把Libc Version换成uClibc
代码: 全选
(uClibc) Libc Version
再重复上面的步骤:
代码: 全选
make dep
make
编译成功后会在uClinux-dist目录里面生成一个images目录,这个目录里面有四个文件:
image.bin:这是包含内核映像和 romfs文件系统映像,可以写到Flash中的文件,
linux.data:包括内核所有的数据段
linux.text:包括内核所有的代码段
romfs.img:文件系统
另外在uClinux-dist/linux-2.4.x目录里面生成了两个文件:linux和system.map
linux:linux内核文件
system.map:内核符号表
然后在uClinux-dist目录里面建一个skyeye.conf文件,并键入以下配置文件
代码: 全选
#skyeye config file sample
cpu: arm7tdmi
mach: at91
mem_bank: map=M, type=RW, addr=0x00000000, size=0x00004000
mem_bank: map=M, type=RW, addr=0x01000000, size=0x00400000
mem_bank: map=M, type=R, addr=0x01400000, size=0x00400000, file=./boot.rom
mem_bank: map=M, type=RW, addr=0x02000000, size=0x00400000
mem_bank: map=M, type=RW, addr=0x02400000, size=0x00008000
mem_bank: map=M, type=RW, addr=0x04000000, size=0x00400000
mem_bank: map=I, type=RW, addr=0xf0000000, size=0x10000000
ln -s images/romfs.img boot.rom
代码: 全选
wenwu@wenwu-desktop:/source/uClinux-dist$ ln -s images/romfs.img boot.rom
下面就可以用skyeye运行我们自己编译出来的内核了。
代码: 全选
wenwu@wenwu-desktop:/source/uClinux-dist$ skyeye -e linux-2.4.x/linux
big_endian is false.
arch: arm
cpu info: armv3, arm7tdmi, 41007700, fff8ff00, 0
mach info: name at91, mach_init addr 0x8057550
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm7100 mmu ops
Loaded ROM ./boot.rom
start addr is set to 0x01000000 by exec file.
Linux version 2.4.24-uc0 (wenwu@wenwu-desktop) (gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from http://www.snapgear.com/)) #2 2007年 11月 11日 星期日 16:21:16 CST
Processor: Atmel AT91M40xxx revision 0
Architecture: EB01
On node 0 totalpages: 1024
zone(0): 0 pages.
zone(1): 1024 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/rom0
Calibrating delay loop... 15.82 BogoMIPS
Memory: 4MB = 4MB total
Memory: 2968KB available (850K code, 180K data, 40K init)
Dentry cache hash table entries: 512 (order: 0, 4096 bytes)
Inode cache hash table entries: 512 (order: 0, 4096 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 1024 (order: 0, 4096 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Atmel USART driver version 0.99
ttyS0 at 0xfffd0000 (irq = 2) is a builtin Atmel APB USART
ttyS1 at 0xfffcc000 (irq = 3) is a builtin Atmel APB USART
Blkmem copyright 1998,1999 D. Jeff Dionne
Blkmem copyright 1998 Kenneth Albanowski
Blkmem 1 disk images:
0: 1400000-14AC3FF [VIRTUAL 1400000-14AC3FF] (RO)
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (romfs filesystem) readonly.
Shell invoked to run file: /etc/rc
Command: hostname GDB-ARMulator
Command: /bin/expand /etc/ramfs.img /dev/ram0
Command: mount -t proc proc /proc
Command: mount -t ext2 /dev/ram0 /var
Command: mkdir /var/tmp
Command: mkdir /var/log
Command: mkdir /var/run
Command: mkdir /var/lock
Command: mkdir /var/empty
Command: cat /etc/motd
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|
GDB/ARMulator support by <davidm@snapgear.com>
For further information check:
http://www.uclinux.org/
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/>