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更新 my-linux.md
给部分代码框添加shell标记
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@@ -28,31 +28,31 @@ lang: zh_CN
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把压缩包wget下来(用curl也行)
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```
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```shell
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wget https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.16.4.tar.xz
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```
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#### 解压
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把下载下来的压缩包进行解压
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```
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```shell
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tar -xf inux-6.16.4.tar.xz
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```
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#### 配置内核
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先cd到对应目录
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```
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```shell
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cd inux-6.16.4
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```
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我就直接使用默认配置了。如果需要可以调整配置。
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```
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```shell
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make defconfig
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```
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使用编译命令。(-j是要使用多少个核心)
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```
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```shell
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make -j4
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```
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等待编译完成后会提示内核的输出路径，我编译的是x86的。
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```
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```shell
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linux-6.16.4/arch/x86/boot/bzImage
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```
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@@ -66,19 +66,19 @@ linux-6.16.4/arch/x86/boot/bzImage
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选择Download Source接着，滑到最底下找到1.37.0版本(大约2mb左右,那些大小太少的好像是用来校验的,你要是想也可以全下载下来一个一个找😆)
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```
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```shell
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wget https://busybox.net/downloads/busybox-1.37.0.tar.bz2
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```
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#### 解压busybox
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还是老生常谈的解压
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```
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```shell
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tar -xf busybox-1.37.0.tar.bz2
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```
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#### 配置busybox
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解压完后cd进对应目录，配置busybox，由于我们这个系统简直就是一个毛坯房，几乎啥都没有，所以说要用静态编译。先去配置一下。
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```
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```shell
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make menuconfig
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```
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进到settings(按enter)找到Build Busybox as a static binary(no shared libs)按空格选择，按→选Exit
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@@ -87,25 +87,25 @@ make menuconfig
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#### 编译busybox
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配置完后就开始编译
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```
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```shell
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make -j 2
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```
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编译完成后，在你的工作目录创建一个临时目录
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```
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```shell
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mkdir busybox
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```
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然后
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```
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```shell
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make install CONFIG_PREFIX=../busybox
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```
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```shell
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#### 编辑img文件
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使用dd命令创建一个全都是0的文件
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```
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```shell
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dd if=/dev/zero of=Linux.img bs=1M count=512)
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```
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```shell
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给img文件分区
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```
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```shell
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gdisk Linux.img
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```
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输入n，后面两个按空格，最后一个输入50MB，guid填写EF00(注意大小写)
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@@ -115,82 +115,82 @@ gdisk Linux.img
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#### 挂载
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先使用losetup将一个文件或设备与一个回环设备（loop device）进行关联。
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```
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```shell
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sudo losetup -f -P Linux.img
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```
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lsblk查看
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```
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```shell
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lsblk
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```
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找到Linux的loop，我这边是loop0里面有loop0p1，loop0p1。
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loop0p1
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```
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```shell
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sudo mkfs.fat -F32 /dev/loop0p1
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```
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loop0p2
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```
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```shell
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sudo mkfs.exit4 /dev/loop0p2
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```
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在工作目录创建一个mnt文件夹
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```
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```shell
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mkdir mnt
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```
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挂载loop0p1
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```
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```shell
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sudo mount /dev/loop0p1 mnt
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```
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#### 创建 EFI
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```
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```shell
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sudo grub-install --target=x86_64-efi --efi-directory=$(realpath mnt) --bootloader-id=GRUB --removable --recheck
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```
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查看mnt里面的文件，应该会有一个叫做EFI的文件夹
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```
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```shell
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ls mnt
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```
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创建一个在mnt/BOOT/grub的文件夹
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```
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```shell
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mkdir -p mnt/boot/grub
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```
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复制文件
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```
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```shell
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cp mnt/BOOT/grub.cfg /mnt/boot/grub
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```
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查看loop0p2的id
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```
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```shell
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blkid /dev/loop0p2
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```
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把UUID物复制下来，替换mnt/boot/grub/grub.cfg中的UUID，然后把修改后的文件直接复制替换到mnt/EFI/BOOT/grub.cfg
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回到mnt的上一层，解除挂载。
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```
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```shell
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sudo umount mnt
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```
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#### 给系统搞个根目录
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先挂载 loop0p2
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```
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```shell
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sudo mount /dev/loop0p2 mnt
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```
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复制内核文件到mnt
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```
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```shell
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sudo cp linux-6.16.4/arch/x86/boot/bzImage mnt
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```
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把busybox编译出来的二进制文件移到对应目录
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```
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```shell
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sudo cp -r busybox/* mnt
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```
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cd到mnt
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```
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``` shell
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cd mnt
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```
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创建boot文件夹
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```
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```shell
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mkdir boot
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```
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创建其他需要的目录(有些文件创建来就是空着的，方便后期不用创建，比如说包管理器就要用etc文件夹
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```
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```shell
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mkdir proc
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mkdir sys
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@@ -198,33 +198,33 @@ mkdir sys
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mkdir etc
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```
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把bzImage文件移动到boot文件夹
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```
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```shell
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sudo mv bzImage boot/
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```
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跳转boot目录，ls检查一下
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```
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```shell
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cd boot
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ls
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```
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如果没有问题就能看到bzImage文件
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```
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```shell
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bzImage
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```
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创建grub文件夹
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```
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```shell
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mkdir grub
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```
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cd到grub
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```
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```shell
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cd grub
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```
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创建一个文件叫grub.cfg
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```
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```shell
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vim grub.cfg
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```
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里面的内容按这个填
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```
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```shell
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menuentry "Unics_MCKero" {
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insmod part_gpt
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insmod fat
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@@ -237,7 +237,7 @@ menuentry "Unics_MCKero" {
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Unics_MCKero这个是你的引导程序的名字可以修改(尽量使用英文，我不知道用特殊字符或者中文会不会不兼容)
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执行这个查看loop0p2的UUID
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```
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```shell
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blkid /dev/loop0p2
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```
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mnt/boot/grub.cfg里面的set=root 这个后面填写loop0p2的UUID
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@@ -245,15 +245,15 @@ mnt/boot/grub.cfg里面的set=root 这个后面填写loop0p2的UUID
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PARTUUID这里填写blkid /dev/loop0p2输出的PARTUUID，然后保存
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跳转到mnt的boot目录(因为我在mnt的boot/grub目录所以说我就直接使用直接返回上一层）
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```
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```shell
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cd ..
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```
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创建一个名为init的文件
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```
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```shell
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vim init
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```
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内容就写这个
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```
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```shell
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#!/bin/sh
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mount -t sysfs none /sys
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@@ -263,7 +263,7 @@ mount -t devtmpfs devtmpfs /dev
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exec /bin/sh
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```
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给init执行权限(一定要给,如果没给系统运行不了)
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```
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```shell
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chmod +x init
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```
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#### 网络
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@@ -272,11 +272,11 @@ chmod +x init
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先到这个项目的仓库[ifupdown-ng的github仓库](https://github.com/ifupdown-ng/ifupdown-ng)这是一个用c语言编写的项目，比较轻量，它可以用来管理网络设备。
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我们先把他的仓库克隆下来
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```
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```shell
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git clone https://github.com/ifupdown-ng/ifupdown-ng.git
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```
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跳转进仓库
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```
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```shell
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cd ifupdown-ng
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```
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因为我们的小系统没有依赖库，所以说我们需要静态编译这个程序。
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