PXE批量安装

### 关闭防火墙

```
iptables -F
```

### 安装httpd、tftp、dhcp服务

```
# centos 7:
yum install -y httpd tftp-server dhcp xinetd
# centos 8:
dnf install -y httpd tftp-server dhcp xinetd
```

### 启动httpd服务并设置

```
systemctl start httpd
systemctl enable httpd
mount openEuler-20.03-LTS-SP2-aarch64-dvd.iso /mnt
cp -r /mnt/* /var/www/html/openEuler/
```

### 配置tftp

```

vim /etc/xinetd.d/tftp
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /var/lib/tftpboot
disable = no
per_source = 11
cps = 100 2
flags = IPv4
}
systemctl start tftp
systemctl enable tftp
systemctl start xinetd
systemctl status xinetd
systemctl enable xinetd
```

### 设置和修改kickstart配置文件 openEuler-ks.cfg

```
vim  /var/www/html/ks/openEuler-ks.cfg
#version=DEVEL
# use disk
ignoredisk --only-use=sda
# partition use lvm
autopart --type=lvm
# Partition clearing information
clearpart --all --initlabel --drives=sda
# 硬盘配置
# part /boot --fstype=ext4 --asprimary --size=1024
# part /boot/efi --size=300
# part pv.008003 --grow --size=1
# volgroup rootvg --pesize=8192 pv.008003
# logvol swap --fstype=swap --name=swap --vgname=rootvg --size=65536
# logvol / --fstype=ext4 --name=root --vgname=rootvg --grow --size=1

# Use graphical install
graphical
# Keyboard layouts
keyboard --vckeymap=us --xlayouts='us'
# System language
lang en_US.UTF-8
#Use http installation source
url --url=http://10.10.10.53/openEuler/
# root password
rootpw --plaintext Huawei@123
# timezone
timezone Asia/Shanghai
# Do not configure the X Window System
skipx
# install
%packages
@^minimal-environment
@standard

%end
# network settings
network  --bootproto=dhcp --device=ens33 --ipv6=auto --activate
network  --hostname=openeuler

# Run the Setup Agent on first boot
firstboot --enable

# Reboot after installation
reboot
```

### 修改pxe配置文件grub.cfg

```

# cp -r /mnt/images/pxeboot/* /var/lib/tftpboot/
# cp /mnt/EFI/BOOT/grubaa64.efi /var/lib/tftpboot/
# cp /mnt/EFI/BOOT/grub.cfg /var/lib/tftpboot/
# ls /var/lib/tftpboot/
grubaa64.efi  grub.cfg  initrd.img  TRANS.TBL  vmlinuz
# vim /var/lib/tftpboot/grub.cfg
set default="1"

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod ext2

set timeout=60
BIOS启动
... ... ... ...
label linux
  menu label ^Install Red Hat Enterprise Linux 8.0
  kernel vmlinuz
  append initrd=initrd.img inst.stage2=ftp://10.10.10.53/dvd inst.ks=ftp://10.10.10.53/ks.cfg quiet
... ... ... ...
UEFI启动
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Install openEuler 20.03 LTS SP2' --class red --class gnu-linux --class gnu --class os {
        set root=(tftp,10.10.10.53)
        linux /vmlinuz ro inst.geoloc=0 console=ttyAMA0 console=tty0 rd.iscsi.waitnet=0 inst.ks=http://10.10.10.53/ks/openEuler-ks.cfg
        initrd /initrd.img
}

# Linux和initrd查看镜像包中文件，错误会导致找不到命令
```

### 配置DHCP

```
# vim /etc/dhcp/dhcpd.conf
ddns-update-style interim;
ignore client-updates;
filename "grubaa64.efi"; 　　 # pxelinux 启动文件位置;
next-server 10.10.10.53;　　# (重要)TFTP Server 的IP地址;
subnet 10.10.10.2.0 netmask 255.255.255.0 {
option routers 10.10.10.1; # 网关地址
option subnet-mask 255.255.255.0; # 子网掩码
range dynamic-bootp 10.10.10.50 10.10.10.200; # 动态ip范围
default-lease-time 21600;
max-lease-time 43200;
}
# systemctl start dhcpd
# systemctl enable dhcpd
```