kickstart 自动安装 CentOS7

环境

• CentOS7.6
• genisoimage 1.1.11
• CentOS-7-x86_64-Minimal-1810.iso

复制 iso 内容到本地磁盘

mount -o loop CentOS-7-x86_64-Minimal-1810.iso /mnt/
mkdir -p /home/iso/centos7
cd /mnt && cp -af * /home/iso/centos7/

创建 isolinux/ks.cfg

mbr 启动，/home/iso/centos7/isolinux/ks.cfg 内容如下

# Install OS instead of upgrade
install
# Reboot after installation
reboot
# System authorization information
auth --enableshadow --passalgo=sha512
# Use CDROM installation media
cdrom
# Use graphical install
graphical
# Run the Setup Agent on first boot
firstboot --enable
ignoredisk --only-use=sda
# Keyboard layouts
keyboard --vckeymap=cn --xlayouts='cn'
# System language
lang zh_CN.UTF-8
# Firewall configuration
firewall --disabled
# SELinux configuration
selinux --disabled

# Network information
#network  --bootproto=dhcp --device=eth0 --onboot=off --ipv6=auto --no-activate
#network  --hostname=localhost.localdomain

# Root password(111111)
rootpw --iscrypted $6$kD.hMvv5nCY8a/SM$Gnmb4zspkuyL75BP2Gj.1SGUaWBugXkd/zMFhoDndp9CSi8VP7R5JP7rfWzL4y7fy8crH3ryDT4PFkKCc7/xM.
# System services
services --enabled="chronyd"
# System timezone
timezone Asia/Shanghai --isUtc
# Clear the Master Boot Record
zerombr
# System bootloader configuration
bootloader --location=mbr --boot-drive=sda
# Partition clearing information
clearpart --none --initlabel
# Disk partitioning information
part /boot --fstype="xfs" --ondisk=sda --size=512
part / --fstype="xfs" --ondisk=sda --grow --size=1

%packages
@^minimal
@core
chrony

%end

%post
lsblk > /root/lsblk
%end

%addon com_redhat_kdump --disable --reserve-mb='auto'

%end

%anaconda
pwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty
pwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok
pwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty
%end

efi 启动，/home/iso/centos7/isolinux/ks.cfg 内容如下

# Install OS instead of upgrade
install
# Reboot after installation
reboot
# System authorization information
auth --enableshadow --passalgo=sha512
# Use CDROM installation media
cdrom
# Use graphical install
graphical
# Run the Setup Agent on first boot
firstboot --enable
ignoredisk --only-use=sda
# Keyboard layouts
keyboard --vckeymap=cn --xlayouts='cn'
# System language
lang zh_CN.UTF-8
# Firewall configuration
firewall --disabled
# SELinux configuration
selinux --disabled

# Network information
#network  --bootproto=dhcp --device=eth0 --onboot=off --ipv6=auto --no-activate
#network  --hostname=localhost.localdomain

# Root password(111111)
rootpw --iscrypted $6$kD.hMvv5nCY8a/SM$Gnmb4zspkuyL75BP2Gj.1SGUaWBugXkd/zMFhoDndp9CSi8VP7R5JP7rfWzL4y7fy8crH3ryDT4PFkKCc7/xM.
# System services
services --enabled="chronyd"
# System timezone
timezone Asia/Shanghai --isUtc
# Clear the Master Boot Record
zerombr
# System bootloader configuration
bootloader --location=mbr --boot-drive=sda
# Partition clearing information
clearpart --none --initlabel
# Disk partitioning information
part /boot --fstype="xfs" --ondisk=sda --size=512
part /boot/efi --fstype="xfs" --ondisk=sda --size=512
part / --fstype="xfs" --ondisk=sda --grow --size=1

%packages
@^minimal
@core
chrony

%end

%post
%end

%addon com_redhat_kdump --disable --reserve-mb='auto'

%end

%anaconda
pwpolicy root --minlen=6 --minquality=1 --notstrict --nochanges --notempty
pwpolicy user --minlen=6 --minquality=1 --notstrict --nochanges --emptyok
pwpolicy luks --minlen=6 --minquality=1 --notstrict --nochanges --notempty
%end

还可以用 ·system-config-kickstart· 定制自己需要的kickstart描述文件

# 安装
yum install system-config-kickstart
#运行
system-config-kickstart

修改启动项文件

mbr 启动，只需修改 isolinux/isolinux.cfg

1. 删除 “label check” 下的 “menu default” 一行
2. 在 “label linux” 一行上方添加如下内容

label auto
  menu label ^Auto install CentOS 7
  menu default
  kernel vmlinuz
  append initrd=initrd.img inst.stage2=hd:LABEL=CentOS7 inst.ks=cdrom:/isolinux/ks.cfg quiet

efi 启动，只需修改 EFI/BOOT/grub.cfg

1. 修改第一行

 set default="0"

2. 在 “### BEGIN /etc/grub.d/10_linux ###” 一行下添加如下内容

menuentry 'Auto Install CentOS 7' --class fedora --class gnu-linux --class gnu --class os {
    linuxefi /images/pxeboot/vmlinuz inst.ks=cdrom:/isolinux/ks.cfg inst.stage2=hd:LABEL=CentOS7 quiet
    initrdefi /images/pxeboot/initrd.img
}

生成 ISO 镜像

mbr 启动，执行如下命令

genisoimage -v -R -J -T -V CentOS7 \
    -b isolinux/isolinux.bin \
    -c isolinux/boot.cat \
    -cache-inodes \
    -joliet-long \
    -no-emul-boot \
    -boot-load-size 4 \
    -boot-info-table \
    -o /home/centos7.iso \
    /home/iso/centos7

efi 启动，执行如下命令

genisoimage -v -R -J -T -V CentOS7 \
   -b images/efiboot.img \
    -c isolinux/boot.cat \
    -cache-inodes \
    -joliet-long \
    -no-emul-boot \
    -boot-load-size 4 \
    -boot-info-table \
    -o /home/centos7-efi.iso \
    /home/iso/centos7

转：https://my.oschina.net/colben/blog/3102457