LFS系统构建06-定制LFS镜像

¶LFS系统构建06-定制LFS镜像

¶打包lfs目录

export LFS=/mnt/lfs 
#将根目录打包，用来制作系统分区
cd $LFS
tar jcvpf ~/lfs-6.3.tar.bz2 ./* --exclude boot # 如果命令不识别，就分开来，一个个的打包
#将boot目录打包，用来制作boot分区
cd $LFS/boot
tar jcvpf ~/boot.tar.bz2 ./*

¶制作livecd

配置基本环境

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export ISO=~/iso
mkdir $ISO
mkdir -pv $ISO/boot/grub

配置stage2_eltorito，下载stage2_elltorito

1	mv stage2_eltorito $LFS/boot/grub/

配置initrd，下载initramfs

1 2	#下载initramfs.gz(我这里是用的gentoo的initrd启动辅助系统) cp -rv initramfs.gz $ISO/boot/

将你的基本系统中的boot目录中的内核复制过来

1	cp $LFS/boot/vmlinuz-4.20.12-lfs-8.4 $ISO/boot/

创建grub的引导配置文件

default 0
timeout 30
color white/black black/light-gray
title Install rack-leen liveCD
root (cd)
kernel /boot/vmlinuz-4.20.12-lfs-8.4  # 你的引导内核的位置
initrd /boot/initramfs.gz  # 你的辅助系统的位置

创建安装脚本

#===============================================================================
#
#          FILE: install.sh
#
#         USAGE: ./install.sh
#
#   DESCRIPTION: 
#
#       OPTIONS: ---
#  REQUIREMENTS: ---
#          BUGS: ---
#         NOTES: ---
#        AUTHOR: rack-leen
#  ORGANIZATION: 
#       CREATED: 2019年06月07日 18时19分09秒
#      REVISION:  ---
#===============================================================================
echo "start install ..."
#find the disk 找到存在的磁盘
DISK=`find /dev -type b | grep '.*[shv]d[a-d][0-9]' | sed -e 's/.$//' | head -1`
echo "Your DISK is $DISK"
DISK_PRE=`echo $DISK | sed -e 's/.$//'`
#set the partition  设置分区
echo "Input Your SWAP Partition for a number:"
read SWAP_NUM   # swap分区号
DISK_SWAP=${DISK}${SWAP_NUM}
echo "Input Your BOOT Partition for a number:"
read BOOT_NUM  # boot分区号
DISK_BOOT=${DISK}${BOOT_NUM}
echo "Input Your ROOT Partition for a number:"
read ROOT_NUM  # /分区号
DISK_ROOT=${DISK}${ROOT_NUM}
#init swap partition 初始化swap分区
mkswap $DISK_SWAP

#swapon 
$DISK_SWAP 
#init root partition 初始化根分区
mkfs.ext4 $DISK_ROOT 
mount $DISK_ROOT /mnt/lfs # 挂载根分区
cd /mnt/lfs
tar jxvpf /install/lfs-8.4.tar.bz2 #将根分区文件解压到根分区
cp ${DISK_PRE}* /mnt/lfs/dev/ -R #将dev目录下的设备全部复制到dev目录
echo "install ROOT finished"

#init boot partition 初始化boot分区
mkfs -t ext2 $DISK_BOOT 
mount $DISK_BOOT /mnt/boot 
cd /mnt/boot
tar jxvpf /install/boot.tar.bz2
echo "install BOOT finished"

#init fstab 
echo "${DISK_ROOT} / ext3 defaults 1 1">/mnt/lfs/etc/fstab 
echo "${DISK_SWAP} swap swap pri=1 0 0">>/mnt/lfs/etc/fstab 
echo "${DISK_BOOT} /boot ext3 defaults 0 0">>/mnt/lfs/etc/fstab 
echo "proc /proc proc defaults 0 0">>/mnt/lfs/etc/fstab 
echo "sysfs /sys sysfs defaults 0 0">>/mnt/lfs/etc/fstab 
echo "devpts /dev/pts devpts gid=4,mode=620 0 0">>/mnt/lfs/etc/fstab
echo "shm /dev/shm tmpfs defaults 0 0">>/mnt/lfs/etc/fstab 

#init grub grub.cfg
if [ $BOOT_NUM =1 ] ; then 
  GRUB_BOOT=0 
else 
  GRUB_BOOT=`expr $BOOT_NUM - 1` 
fi

# 将grub配置写入配置文件中
echo "
  default 0
  timeout 30
  color white/black black/light-gray
  title rack-leen OS 1.0
  root (hd0,$GRUB_BOOT)
        kernel  /boot/vmlinuz-4.20.12-lfs-8.4 root=${DISK_ROOT} vga=788
" >> /mnt/boot/grub/grub.cfg

# check ip address
check_ip() {
  echo $1 | grep "^\(\(25[0-5]\|2[0-4][0-9]\|1[0-9]\{2\}\|[1-9][0-9]\|[0-9]\)\.\)\{3\}\(25[0-5]\|2[0-4][0-9]\|1[0-9]\{2\}\|[1-9][0-9]\|[0-9]\)$" > /dev/null
  if [ $? -ne 0 ]; then
    return 1
  fi

  ipaddr=$1
  a=$(echo $ipaddr | awk -F'.' '{print $1}')
  b=$(echo $ipaddr | awk -F'.' '{print $2}')
  c=$(echo $ipaddr | awk -F'.' '{print $3}')
  d=$(echo $ipaddr | awk -F'.' '{print $4}')

  for n in $a $b $c $d; do
    if [ $n -gt 255 ] || [ $n -lt 0 ]; then
      return 2
    fi
  done

  return 0
}

# init ip address
NETCARD=$(cat /proc/net/dev | grep "eth" | sed -e "s/^\s*\(eth.*\)\:.*$/\1/")

for NET in $NETCARD; do
  IP=; read -p "Input IP address for $NET: " IP
  check_ip $IP
  while [ $? -ne 0 ]; do
    read -p "Invalid input. ReInput IP address for $NET: " IP
    check_ip $IP
  done

  GATEWAY=; read -p "Input GATEWAY address for $NET: " GATEWAY
  check_ip $GATEWAY
  while [ $? -ne 0 ]; do
    read -p "Invalid input. ReInput GATEWAY address for $NET: " GATEWAY
    check_ip $GATEWAY
  done

  BROADCAST=$(echo "$GATEWAY" | sed -e "s/^\([0-9]\{1,3\}\.[0-9]*\.[0-9]*\)\.[0-9]*$/\1.255/")

  echo \
"ONBOOT=yes
IFACE=$NET
SERVICE=ipv4-static
IP=$IP
GATEWAY=$GATEWAY
PREFIX=24
BROADCAST=$BROADCAST
" > /mnt/lfs/etc/sysconfig/ifconfig.$NET

  mkdir -p /mnt/lfs/etc/sysconfig/network-scripts
  ln -s ../ifconfig.$NET /mnt/lfs/etc/sysconfig/network-scripts/ifcfg-$NET

  echo "Init $NET ip finished"
done


#reset MAC address 
rm -f /mnt/lfs/etc/udev/rules.d/70-persistent-net.rules

#chroot and MBR 
cd /
umount /mnt/boot 
mount $DISK_BOOT /mnt/lfs/boot 
chroot /mnt/lfs /bin/bash -c "echo -e 'root (hd0,$GRUB_BOOT)\nsetup (hd0)\nquit' | /usr/sbin/grub"

echo "******************************************************************"
echo "******************** install finish now reboot *******************"
echo "******************************************************************"
chroot /mnt/lfs/ /bin/bash -c "reboot"

创建install目录，用来存放打包的系统包(根分区包和boot分区包)和安装脚本

cd $ISO
mkdir -pv $ISO/install
cp boot.tar.bz2 ./install
cp lfs-8.4.tar.bz2 ./install
cp install.sh ./install

创建镜像文件

1 2	cd $ISO mkisofs -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o liveCD-lfs-8.4.iso /home/rackleen/iso

├── boot
│   ├── grub
│   │   ├── menu.lst
│   │   └── stage2_eltorito
│   ├── initramfs.gz
│   └── vmlinuz-4.20.12-lfs-8.4
├── install
│   ├── boot.tar.bz2
│   ├── install.sh
│   └── lfs-8.4.tar.bz2
└── liveCD-lfs-8.4.iso

效果图