how to forget_How to forget someone

how to forget_How to forget someone

       今天，我将与大家分享关于how to forget的最新动态，希望我的介绍能为有需要的朋友提供一些参考和建议。

1.Linux Encryption HOWTO 怎样制作一个加密的文件系统

2.Don't Mess With Me 歌词

3.Janet Jackson Livin' In A World (They Didn't Make)歌词

4.如何制作CRAMFS + YAFFS2文件系统的

Linux Encryption HOWTO 怎样制作一个加密的文件系统

       设定分区

       您的硬盘（hda)最少应该包含三个分区：

       hda1:这个小的没加密的分区 应该 要求 一个 口令 为了 加载 加密 的根文件系统

       hda2:这个分区应该包含你的加密根文件系统；确保它足够大

       hda3:这个分区就是你的当前的GNU/Linux系统

       在这时，hda1和hda2没有使用。hda3就是当前你安装的linux发行版； /usr 和/boot不能另外分区装载。

       你的分区分布也许会像下面这样：

       # fdisk -l /dev/hda

       Disk /dev/hda: 255 heads, 63 sectors, 2432 cylinders

       Units = cylinders of 16065 * 512 bytes

       Device Boot Start End Blocks Id System

       /dev/hda1 1 1 8001 83 Linux

       /dev/hda2 2 263 2104515 83 Linux

       /dev/hda3 264 525 2104515 83 Linux

       /dev/hda4 526 2047 12225465 83 Linux

       安装 Linux-2.4.27

       有两种主要的方案可用于在内核上添加 loopback加密支持：cryptoloop 和 loop-AES。本文是基于loop-AES方案的，因为因为它的特点是非常快 和非常优化实行 of Rijndael 用汇编语言。如果你有一个IA-32 (x86) CPU ，它将为您提供 最大的性能。另外，还有一些关于cryptoloop的安全关切.

       首先，下载和解压 loop-AES 软件包：

       wget pany

       for eleven years, and now you wanna dump me?

       And just to think, I was about to have a baby for you

       and then some bitch you was fuckin said she was havin one too?

       You wrong! Nigga dead wrong, you know the song

       "Don't know what you've got til it's gone"

       After the fight, the other night, and we both went to jail

       I burnt all your clothes up, I was "Waiting to Exhale"

       (That's right)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (You don't wanna mess with me)

       Heartbreaker, dream maker

       (I'm the Queen Bitch)

       Love taker don't you mess around with me, you're a

       (Don't be messin with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Hmm, you don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Yeah, now hold that)

       Now I'm back to my old ways, like in the old days

       Flirtin, not givin a fuck, what?

       Got you lookin in the mirror sayin, "Damn!"

       Sick thinkin bout the next man fuckin this tight pussy

       Niggaz want me, even though they got a honey

       If I'ma be number two, they givin me some hush money

       Ask Whitney, I learned how to break a heart from you

       cause when a woman's fed up, it ain't nuttin you can do

       I'm that Bitch, don't you ever forget

       Witchu when you rich or when you ain't have shit

       Now he cryin, he beggin, "Kim let me come back"

       Like Mark Morrison, "Return of the Mack" baby!

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (You don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Don't be messin with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Y'all niggaz don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Cause I'm not the one)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       Heartbreaker, dream maker.. you're a

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       Heartbreaker, dream maker.. you're a

       Lil' Kim - Don't Mess With Me

       /song/8214319

Janet Jackson Livin' In A World (They Didn't Make)歌词

       歌曲名:Don't Mess With Me

       歌手:白蛇合唱团

       专辑:Trouble

       Lil' Kim - Don't Mess With Me

       See.. some niggaz don't know how to act..

       so I'm about to get on some Left Eye shit

       and start burnin down niggaz cribs

       When we met, I can't front, I was all in your shit

       even though I was a bitch playin hard to get

       Cause see I never felt this way in my life

       It didn't take long before you made me your wife

       Shoppin sprees and puttin money in my pockets

       Pictures of you inside my heart-shaped lockets

       And my girls, knew you wasn't no good

       They told me bout them broads you was fuckin in the hood

       You said I was a diamond, and you was like a pearl

       So daddy how could you do this to your baby girl?

       Memories, is all it brings when I look at my rings

       and "Heartbreaker" is the song I sing (c'mon, c'mon)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Yeah, uh-huh uh-huh, you don't wanna mess with me)

       Heartbreaker, dream maker

       (Do you know, who I am?)

       Love taker don't you mess around with me, you're a

       (Don't be messin with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Hehe, yeah, you don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (You don't wanna mess around)

       Breakfast in Paris, dinner in Milan

       Sex on the beach, yeah we had it goin on

       Then one day you hid my birth control pills

       Said the way I sucked your dick it had you head over heels

       When you got rich I helped you run your company

       for eleven years, and now you wanna dump me?

       And just to think, I was about to have a baby for you

       and then some bitch you was fuckin said she was havin one too?

       You wrong! Nigga dead wrong, you know the song

       "Don't know what you've got til it's gone"

       After the fight, the other night, and we both went to jail

       I burnt all your clothes up, I was "Waiting to Exhale"

       (That's right)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (You don't wanna mess with me)

       Heartbreaker, dream maker

       (I'm the Queen Bitch)

       Love taker don't you mess around with me, you're a

       (Don't be messin with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Hmm, you don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Yeah, now hold that)

       Now I'm back to my old ways, like in the old days

       Flirtin, not givin a fuck, what?

       Got you lookin in the mirror sayin, "Damn!"

       Sick thinkin bout the next man fuckin this tight pussy

       Niggaz want me, even though they got a honey

       If I'ma be number two, they givin me some hush money

       Ask Whitney, I learned how to break a heart from you

       cause when a woman's fed up, it ain't nuttin you can do

       I'm that Bitch, don't you ever forget

       Witchu when you rich or when you ain't have shit

       Now he cryin, he beggin, "Kim let me come back"

       Like Mark Morrison, "Return of the Mack" baby!

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (You don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Don't be messin with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Y'all niggaz don't wanna mess with me)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       (Cause I'm not the one)

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       Heartbreaker, dream maker.. you're a

       Heartbreaker, dream maker

       Love taker don't you mess around with me, you're a

       Heartbreaker, dream maker.. you're a

       Lil' Kim - Don't Mess With Me

       /song/15194884

如何制作CRAMFS + YAFFS2文件系统的

       Children are called the future of an adult world

       They are born with spirits so innocent

       Til we teach them how to hate

       Add to the world's confusion

       We teach our kids rules

       That we don't adhere to ourselves

       Right or wrong

       What example can they take

       The people we learn from

       Forge the ideas we become

       Living in a world they didn't make

       Living in a world that's filled with hate

       Living in a world where grown-ups break the rules

       Living in a world they didn't make

       Paying for a lot of adult mistakes

       How much of this madness can they take

       Our children

       Children grow to become our young adults

       Problems of the world

       They must learn how to confront

       Doing drugs and joining gangs to rebel

       Colors show they belong

       To the social override

       Cause they're living in a space

       They feel out of place

       Living in a world they didn't make

       Living in a world that's filled with hate

       Living in a world where grown-ups break the rules

       Living in a world they didn't make

       Paying for a lot of adult mistakes

       How much of this madness can they take

       Our children

       如何制作CRAMFS + YAFFS2文件系统

       1．文件系统简述

       随着32位CPU价格不断下跌，片上存储设备的容量相比越来越大，越来越多的嵌入式系统开始应用各种嵌入式操作系统。一般在嵌入式领域，只要应用到操作系统的必然会需要一个，甚至是多个文件系统。所谓文件系统，实际上就是在一个具体的存储设备上任何文件的组织和目录。这个设备可能是各种RAM、NAND FLASH、NOR FLASH等DOC设备，还有以NAND FLASH 为基础的各种存储卡等[1]。目前，针对不同的设备和应用有很多文件系统可供选择，例如EXT2、TEMPFS、RAMDISK、CRAMFS、JFFS1/2、YAFFS1/2、XFS等。除此之外，还有很多供应商提供的商用文件系统。

       选择文件系统，要根据具体应用的需求。一般，首先要考虑的就是可靠性，健壮性和增强的需求。如果是像工控这样的不需经常更新控制程序的应用来说，我们选择CARAMFS这样的只读文件系统已经足够了，而且它还可以带来的另外一个好处就是CRAMFS的压缩率高达50%，可以大大节省我们的存储空间。但是如果是像涉及到数据采集这类需要保存数据的应用来说，只读的文件系统就很难满足应用系统的需求，我们可以选择JFFS或者YAFFS这样的可读写的文件系统。不过在实际应用中，需要考虑的因素还应该更多。

       2．文件系统的实现

       2．1文件系统的选择

       在本文涉及的应用中，根文件系统并不需要频繁的更改，但是却涉及到一些数据的存取。考虑到的存储设备是NAND FLASH，所以在根文件系统格式的选择上可以用压缩率比较高的CRAMFS，而在根文件系统下挂载一个可读写的YAFFS2文件系统。

       YAFFS2（Yet Another nandFlash FileSytem2）是专门针对NAND设备的一种文件系统。YAFFS2类似于JFFS/JFFS2文件系统，与YAFFS2不同的是JFFSS1/2文件系统最初是针对NOR FLASH的应用场合设计的。而YAFFS2针对NAND FLASH的特点采用增强的碎片回收和均衡磨损技术，大大提高了读写速度，延长了存储设备的使用寿命[2],可以更好的支持大容量的NAND FLASH芯片。而且在断电可靠性上，YAFFS2的优势更加明显[3]。

        2．2建立根文件系统

       Linux内核启动以后，根据参数linux_cmd_line的指示跳转到根文件系统的地址，完成文件系统的初始化和挂载任务。根文件系统的建立可以借助各种开发套件来完成，也可以完全由自己搭建一个。这里介绍如何通过开发套件的帮助来完成基本的根文件系统。Busybox是由Bruce Perens发起的一项计划，该计划最初的目的是协助Debian发行套件建立安装磁盘。由于Busybox小巧但功能不失强大，所以在嵌入式系统中有很广的应用。下载Busybox稳定版（www.busybox.net），解压后直接make menuconfig 进入Busybox配置菜单，这个界面根内核差不多。在Applets下面选择你需要命令，然后退出保存, 执行make , make install。在Busybox的目录下就会生成_install目录，这个目录就包含了将要配置的命令的工具包。把这个目录拷贝到工作目录，更名为rootfs, 这个目录就是要建立的根文件系统的雏形——但是它还不能工作，需要进一步的完善。

       在rootfs/下，首先在/rootfs/dev下建立必须的设备文件。关于设备的建立，可以参考Filesystem Hierarchy Standard来确定需要的哪些设备文件(/fhs/)。下一步就是完成/rootfs/etc这个目录下的3个比较重要的文件inittab,fstab,init.d/rcS(或者是rc.d/rc.sysinit,这个由inittab决定)。下面给出可供参考的样例：

       Inittab文件

       #System initialization .

       ::sysinit:/etc/init.d/rcS

       ::askfirst:/bin/sh

       ::restart:/sbin/init

       ::shutdown:/bin/umount –a –r

       ::shutdown:/sbin/swapoff –a

       Fstab文件

       none /proc proc defaults 0 0

       tmpfs /temp tmfs defaults 0 0

       fstab指定了设备的挂载点。要了解关于fstab文件的格式以及详细信息，可以参考

       /nfs-howto/）来测试文件系统是否可行，但是最后我们还是要把这个文件系统烧进目标板。

       可以有两种方式来应用YAFFS2文件系统，一是CRAMFS+YAFFS2的组合，一种是纯YAFFS2文件系统格式。由于在笔者的应用中，内核和根文件系统并不需要频繁更新，所以从节省存储空间和保护根文件系统的角度来考虑，我们选用CRAMFS这样的高压缩率、只读文件系统，而应用程序，用户空间使用YAFFS2文件系统格式。

       对于CRAMFS，可以直接用mkcramfs /rootfs ~/root.img来制作cramfs镜像，/rootfs是前面建立的根文件系统目录，~/root.img指定做好镜像的保存目录。由于YAFFS2文件系统当初设计就是针对nand设备的，在笔者的应用中，文件系统是在NANDFLASH中启动，因此要使用YAFFS2文件系统,就必须先在内核添加NAND设备驱动[5]，并修改arch\arm\mach-s3c2410\devs.c文件,增加nand flash分区。一般情况下bootloader, kernel, root 三个分区是必须的，也有的加了param分区来保存内核参数，user分区来作为用户空间的，但是也可以不要。

       在www.aleph.co.uk下载YAFFS2（GPL）源码，解压后在YAFFS2目录下执行

       patch-ker.sh ~/Linux2.6.14.2

       ~/Linux2.6.14.2是内核的路径，笔者的内核是2.6.14.2。patch后在内核的fs目录下就会生成yaffs2目录，这样内核就已经得到YAFFS2的支持了。

       接下来make menuconfig ,配置内核时在

       Device Drivers->

       Memory Technology Device (MTD)->

       下选中MTD Partitioning Surpport,这样我们的分区信息才有效。在

       File System->

       Miscellaneous filesystems->下配置YAFFS2如下:

       <>EFS file system support(read only) (EXPERIMENTAL)

       <*>YAFFS2 file system support

       — 512 byte / page devices

       [*]Lets Yaffs do its own ECC

       [*]Use the same ecc byte order as Steven Hill’s nand_ecc.c

       — 2048 byte (or larger) / page devices

       [*]Autoselect yaffs2 format

       [*]Disable lazy loading

       [*]Turn off wide tnodes

       [*]Turn off debug chunk erase check

       [*]Cache short names in RAM

       <>Jounalling Flash File System (JFFS) support

       保存配置，退出，执行make。Make结束后就得到了一个具备挂载yaffs2文件系统能力的内核镜像。

       在bootloader源文件中，将nand flash分成几个分区，前面提到的devs.c文件里的分区也必须与bootloader的分区一致，因为bootloader指定了内核和文件系统的地址，最后启动时也会到相应的地址寻找指令。在我们的应用中，将flash分成bootloader, param, kernel, root, user。其中root用来挂载CRAMFS根文件系统，user分区挂载YAFFS2文件系统。

       在YAFFS2源文件的utils目录下，执行make就可以生成 mkyaffs2image工具，执行

       ./mkyaffs2image （要制作yaffs2的目录） (目标镜像)

       生成yaffs2文件系统，不过因为前面根文件系统是CRAMFS格式，YAFFS2可以作为模块来加载，这样更加方便，更加灵活。加载模块也可以在后面给出的脚本中定义。

       最后一步就是要让内核在启动后挂载文件系统，挂载文件系统有两种方式：手动和自动挂载。在实际应用中当然是要系统在无需人工干预的情况下自动挂载文件系统。在Debian系统中，初始化脚本是/etc/init.d/rcS，在Rad Hat中是/etc/rc.d/rc.sysinit。这里面包含了装入文件系统，设置时间，打开交换分区，得到主机名等等内容。回顾前面给出的Inittab和init.d/rcS文件就知道，系统的Init进程是如何动作的。对照前面的rcS文件这里给出一个更加详细的并给出注释。

       #! /bin/sh //busybox提供的SHELL

       PATH=/sbin:/bin:/usr/sbin:/usr/bin //设置系统路径

       runlevel=S //运行级别

       prevlevel=N

       umask 022 //缺省访问权限为022

       export PATH runlevel prevlevel

       /bin/mount -f -t cramfs -o remount,ro /dev/mtdblock/3 /

        //cramfs作为根文件系统挂到第四个分区下,即root分区。

       /sbin/insmod -f /lib/yaffs2.ko //加载yaffs2模块

       /sbin/mount -t yaffs2 /dev/mtdblock/4 /usr //yaffs2挂到第五个分区，作为/usr

       /sbin/mount -t proc none /proc //mount命令由busybox提供

       /sbin/mount -t tmpfs none /root //挂载tmpfs到指定目录,下同

       /sbin/mount -t tmpfs none /tmp

       /sbin/mount -t tmpfs none /var

       /sbin/mkdir -p /var/lib //创建目录

       /sbin/mkdir -p /var/run

       /sbin/mkdir -p /var/log

       /etc/rc.d/init.d/leds start //初试用户程序leds

       /sbin/ifconfig lo 127.0.0.1 //指定lo设备的IP地址为127.0.0.1

       #/sbin/ifconfig eth0 192.168.0.2

       /sbin/hostname -F /etc/sysconfig/HOSTNAME //指定主机名文件路径.

       将文件系统烧进目标板对应分区，boot,即可运行。至此，目标板可以通过/usr进行读写文件，目标板完成对yaffs2的支持。

       3．结束语

       YAFFS2可靠的掉电保护和高效率的读写以及对nand存储设备的保护等优势使得它在越来越多的嵌入式系统中取得应用。在本文的应用中，YAFFS2在Linux下表现了良好的性能。

       好了，关于“how to forget”的话题就到这里了。希望大家通过我的介绍对“how to forget”有更全面、深入的认识，并且能够在今后的实践中更好地运用所学知识。