在 Redhat9 上安装 RTLinux 3.2 [dslab]

//在Redhat9上安装RTLinux3.2 >>>> dslab 杨红刚

//更多文章见：http://dslab.lzu.edu.cn/

使用的文件：

rtlinux-3.2-wr.tar.bz2：从风河公司网站免费注册后下载 http://www.rtlinuxfree.com/
linux-2.4.28.tar.bz2 : 可以从兰大开源社区镜像站下载 ftp://mirror.lzu.edu.cn/kernel.org/v2.6/
环境：

处理器：Intel(R) Pentium(R) 4 CPU 2.80GHz

操作系统发行版：RedHat9

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

1. 创建工作目录，解压文件

# mkdir rtlinux

# cd rtlinux

将rtlinux-3.2-wr.tar.bz2, linux-2.4.28.tar.bz2 复制到当前目录

# tar -jxf rtlinux-3.2-wr.tar.bz2

# tar -jxf linux-2.4.28.tar.bz2

2. 编译linux

# cd linux-2.4.28

//给内核打补丁

//补丁测试

# patch -p1 --dry-run < ../rtlinux-3.2-wr/patches/kernel_patch-2.4.28-rtl3.2-rc1 //选择对应的补丁版本

如果没有什么错误那么就可以执行如下的命令，打上补丁

# patch -p1 < ../rtlinux-3.2-wr/patches/kernel_patch-2.4.28-rtl3.2-rc1

实际上，有个问题：

...

patch: **** malformed patch at line 2061: *+/

...

修改补丁文件

# vim ../rtlinux-3.2-wr/patches/kernel_patch-2.4.28-rtl3.2-rc1

将2061行的 *+/ 修改为 +*/

再重复上面的打补丁的过程

//配置内核

# cp /boot/config-2.4.20-8 .config //将系统上已有的配置文件拷贝过来

# make menuconfig

注意选择Processor family，我的为：Pentium-4

USB support

USB HIDBP Keyboard (basic) support 选上

USB HIDBP Mouse (basic) support 选上

我的鼠标键盘都是 usb接口

其他的默认即可

# make dep

# make bzImage //生成内核镜像

# make modules //生成模块

出现如下错误

...

dn_neigh.c:584: `THIS_MODULE' undeclared here (not in a function)

dn_neigh.c:584: initializer element is not constant

dn_neigh.c:584: (near initialization for `dn_neigh_seq_fops.owner')

make[2]: *** [dn_neigh.o] Error 1

make[2]: Leaving directory `/home/joseph/wf/rtlinux/an/linux-2.4.28/net/decnet'

make[1]: *** [_modsubdir_decnet] Error 2

make[1]: Leaving directory `/home/joseph/wf/rtlinux/an/linux-2.4.28/net'

make: *** [_mod_net] Error 2

在 ./net/decnet/dn_neigh.c 添加

#include <linux/module.h>

重新生成模块

# make modules_install //模块安装

# cp arch/i386/boot/bzImage /boot/vmlinuz-2.4.28-rtl3.2-rc1

# cp System.map /boot/System.map-2.4.28-rtl3.2-rc1

# cd /boot

# mkinitrd initrd-2.4.28-rtl3.2-rc1.img 2.4.28-rtl3.2-rc1

//如果有提示 mkinitrd 不能用，你要把 /sbin 添加到PATH中

# vim ~/.bashrc

添加内容： PATH=/sbin:$PATH

export PATH

# source ~/.bashrc //让设置生效]

//修改grub引导

#vim grub/menu.lst

增加如下内容：

title Red Hat Linux (2.4.28-rtl3.2-rc1-Joseph-Yang)

root (hd0,1)

kernel /vmlinuz-2.4.28-rtl3.2-rc1 ro root=LABEL=/

initrd /initrd-2.4.28-rtl3.2-rc1.img

# reboot //重新引导，如果没有问题就可以启动你新编译的内核了

3. RTLinux编译安装

# cd rtlinux-3.2-wr

# make menuconfig

出现如下错误：

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

schedulers//Makefile:8: ../rtl.mk: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

ls: No: 没有那个文件或目录

ls: directory: 没有那个文件或目录

ls: for: 没有那个文件或目录

ls: rtlinux: 没有那个文件或目录

ls: 3.2/include/asm: 没有那个文件或目录

Makefile:526: warning: overriding commands for target `install'

schedulers//Makefile:56: warning: ignoring old commands for target `install'

Makefile:600: warning: overriding commands for target `clean'

schedulers//Makefile:6: warning: ignoring old commands for target `clean'

make: *** No rule to make target `../rtl.mk'. Stop.

解决方法是：在 rtlinux-3.2-wr目录下创建linux-2.4.28目录的符号链接：

# cd rtlinux-3.2-wr

# ln -s ../linux-2.4.28 linux //符号链接名为linux

# make menuconfig

采用默认配置，保存即可

# make dep

出现如下的提示：

rm -f .depend

make .depend

make[1]: Entering directory `/home/joseph/wf/rtlinux/an/rtlinux-3.2-wr'

gcc -Wall -O2 -o scripts/mkdep scripts/mkdep.c

Kernel version 2.4.28-rtl3.2-rc1

for x in `find . -name Makefile`; do /

F=`echo $x|sed 's/Makefile$//g'`; /

(cd $F; $RTL/scripts/mkdep *.c *.h *.S > .depend 2>/dev/null); /

done

xargs: environment is too large for exec

make[1]: *** [.depend] Error 1

make[1]: Leaving directory `/home/joseph/wf/rtlinux/an/rtlinux-3.2-wr'

make: *** [dep] Error 2

我没有做任何处理，直接执行

# make

...

Now do "sh scripts/insrtl" to install the modules

# make install

# make regression

有如下提示：

...

./scripts/regression.sh

make: execvp: ./scripts/regression.sh: 权限不够

make: *** [regression] Error 127

# chmod +x ./scripts/regression.sh

# make regression

...

./scripts/regression.sh

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

- Installing basic modules -

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

Testing multiple loads of rtl.o... [ OK ]

Testing multiple loads of rtl_time.o... [ OK ]

Testing multiple loads of rtl_sched.o... [ OK ]

Testing multiple loads of rtl_posixio.o... [ OK ]

Testing multiple loads of rtl_fifo.o... [ OK ]

Testing RTLinux fifos... [ OK ]

Testing thread wait times... [ OK ]

Testing that Linux time progresses... [ OK ]

Testing that Linux time is monotonically increasing... [ OK ]

Testing ping flood... [ OK ]

Testing floating-point support... [ OK ]

Removing rtl_sched.o... [ OK ]

Testing periodic timer... [ OK ]

Testing oneshot timer... [ OK ]

# rtlinux start

...

Scheme: (-) not loaded, (+) loaded

(+) mbuff

(+) rtl_fifo

(+) rtl

(+) rtl_posixio

(+) rtl_sched

(+) rtl_time

# rtlinux stop

rmmod: rtl is in use

Scheme: (-) not loaded, (+) loaded

(-) mbuff

(-) rtl_fifo

(-) rtl

(-) rtl_posixio

(-) rtl_sched

(-) rtl_time

4. 应用例子

# cd examples/hello

# rtlinux start

# insmod hello.o

Warning: loading hello.o will taint the kernel: no license

See http://www.tux.org/lkml/#export-tainted for information about tainted modules

Module hello loaded, with warnings

#lsmod

Module Size Used by Tainted: P

hello 1160 0 (unused)

rtl_sched 30752 0 [hello]

rtl_fifo 10752 0 (unused)

rtl_posixio 8052 0 [rtl_fifo]

rtl_time 7020 0 [hello rtl_sched rtl_posixio]

rtl 20752 0 [hello rtl_sched rtl_fifo rtl_posixio rtl_time]

mbuff 7852 0 (unused)

parport_pc 19204 1 (autoclean)

lp 8548 0 (autoclean)

parport 36512 1 (autoclean) [parport_pc lp]

autofs 12244 0 (autoclean) (unused)

8139too 17224 1

mii 3992 0 [8139too]

ehci-hcd 21064 0 (unused)

usb-ohci 21864 0 (unused)

usbcore 78816 1 [ehci-hcd usb-ohci]

ext3 71460 2

jbd 51492 2 [ext3]

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

注意：你在运行例子程序时如果发现有类似的提示：

/bin/sh: line 1: scripts/insrtl: 权限不够

只要给相应的文件添加可执行权限即可

# chmod +x scripts/insrtl