DM8168心得之文件系统jffs2的制作.doc

dm8168心得之文件系统jffs2的制作/* author: 卢浩* time: 12.03.08* environment: ubuntu10.04lts +ti dm8186* kernel version: linux-2.6.37*/首先要搭建制作jffs2的环境要下载这4个文件以下是下载链接1.zlib-1.2.5.tar.gz/f/13924714.html2. lzo-2.06.tar.gz /opensource/lzo/download/lzo-2.06.tar.gz 3. e2fsprogs-1.42.tar.gz/projects/e2fsprogs/files/e2fsprogs/1.42/e2fsprogs-1.42.tar.gz/download 4. mtd-utils-d37fcc0.tar.gz/mtd-utils.git/snapshot/d37fcc0afd0d4a14c56812847e8e4257d0a99e3b.tar.gz 下载完之后，ti的文档里面给了两种jffs2的，一种是给主机的，一种是个目标板的，也是是8168的。我这里就介绍给8168用的jffs2targetthis section describes how to cross compile the mtd utilities on the linux development host for linux arm target.首先我在我建立了一个文件夹/home/user/mtd用来存放这4个压缩文件。接下来按照以下步骤操作zlib host$ tar xvf zlib-1.2.5.tar.gz host$ cd zlib-1.2.5/ host$ ./configure -prefix=/home/user/mtd/installedit resulting makefile and add toolchain prefix arm-arago-linux-gnueabi- to gcc, ldshared, cpp, ar and ranlib.这边需要注意的是修改makefile的时候要注意对应你当前的编译器，比如我用的是arm-none-linux-gnueabi-gcc,那就需要把下面的arm-arago-linux-gnueabi-gcc改成arm-none-linux-gnueabi-gcc,。否则会报错找不到arm-arago-linux-gnueabi-gcc host$ vi makefile cc=arm-arago-linux-gnueabi-gcc ldshared=arm-arago-linux-gnueabi-gcc -shared -wl,-soname,libz.so.1,-version-script,zlib.map cpp=arm-arago-linux-gnueabi-gcc -e ar=arm-arago-linux-gnueabi-ar rc ranlib=arm-arago-linux-gnueabi-ranlibsave and close vi editor. then you should be ready to compile. host$ make host$ make install host$ cd .result should be zlib.a in /home/user/mtd/install/lib directory and zlibs headers in /home/user/mtd/install/include.lzo host$ tar xvf lzo-2.06.tar.gz host$ cd lzo-2.06/ host$ ./configure -build=i686-pc-linux -prefix=/home/user/mtd/install -host=arm-arago-linux-gnueabi host$ make host$ make install host$ cd .result should be liblzo2.a in /home/user/mtd/install/lib directory and lzos headers in /home/user/mtd/install/include/lzo.e2fsprogs host$ tar xvf e2fsprogs-1.42.tar.gz host$ cd e2fsprogs-1.42/ host$ ./configure -build=i686-pc-linux -prefix=/home/user/mtd/install -host=arm-arago-linux-gnueabi host$ make host$ make install host$ cd lib/uuid/ host$ make install host$ cd ./././result should be libuuid.a in /home/user/mtd/install/lib directory and uuids headers in /home/user/mtd/install/include/uuid.mtd-utils host$ tar xvf mtd-utils-d37fcc0.tar.gz host$ cd mtd-utils-d37fcc0/mtd-utils dont have a configure script, so we have to edit makefile again. depending on the version of mtd utils, make sure head of top level makefile has:这边ti的意思是把这段代码放在makefile文件的顶端，但我编译错误了，后来我尝试放到低端，通过了。 host$ vi makefile prefix = /home/user/mtd/install zlibcppflags = -i$(prefix)/include lzocppflags = -i$(prefix)/include zlibldflags = -l$(prefix)/lib lzoldflags = -l$(prefix)/lib ldflags += $(zlibldflags) $(lzoldflags) cflags ?= -o2 -g $(zlibcppflags) $(lzocppflags) cross=arm-none-linux-gnueabi-save and close vi editor. edit common.mk and comment prefix=/usr. host$ vi common.mk # prefix=/usrsave and close vi editor. then you should be ready to compile. host$ without_xattr=1 make host$ make install destdir=/home/user/mtd/install host$ cd .directory/home/user/mtd/install/sbin/ should now contain cross compiled mtd utils that can be used on target.环境搭建好了，接下来我们要制作jffs2文件系统rootlocalhost util# cd /home/userrootlocalhost util# mkfs.jffs2 -lqn e 128 -r target -o/tftpboot/rd-jffs2.bin这里需要注意