如何在Hetzner根服务器上安装CentOS 7
时间：2020-02-23 14:30:37 来源:igfitidea点击:
在本文中，我们将重点介绍在Hetzner根服务器上安装CentOS 7. Hetzner是一家云托管，提供按月计费模式的极具竞争力的价格拍卖物理服务器硬件。
我们将在具有以下规格的Hetzner根服务器上进行此安装。
CPU: Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz (12 cores) Memory: 64GB RAM Disk: 2 x 1024GB NVMe SSDs Network: 1Gbit IPV4 Adresses: 1 x IPV4 public address
请注意，使用Hetzner Root服务器，我们将获得一个IPv4公用IP地址，但是我们可以请求使用其他IP或者子网。
启动救援模式
登录到根服务器的Hetzner控制台，然后导航到"主要功能"下的"服务器"部分。
主要功能>服务器>服务器标签>救援
选择要在救援模式下使用的操作系统，CPU体系结构和公共密钥，然后单击"激活救援系统"。
在"重置服务器"部分下重新引导服务器。
创建根服务器配置。
使用Rescue激活期间显示的root用户和密码，以抢救模式SSH到服务器。
$ssh theitroad@localhost
Welcome to the Hetzner Rescue System.
This Rescue System is based on Debian 9 (stretch) with a newer
kernel. You can install software as in a normal system.
To install a new operating system from one of our prebuilt
images, run 'installimage' and follow the instructions.
More information at http://wiki.hetzner.de
Rescue System up since 2019-07-04 23:34 +02:00
Last login: Sat May 6 09:03:05 2019 from 41.90.217.125
Hardware data:
CPU1: Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz (Cores 12)
Memory: 64339 MB
Disk /dev/nvme0n1: 1024 GB (=> 953 GiB)
Disk /dev/nvme1n1: 1024 GB (=> 953 GiB)
Total capacity 1907 GiB with 2 Disks
Network data:
eth0 LINK: yes
MAC: b4:2e:99:47:fa:5c
IP: xxxxxxxxxxxxxxxxxx
IPv6: xxxxxxxxxxxxxxxxxx
Intel(R) PRO/1000 Network Driver
theitroad@localhost ~ #
我的根服务器有两个磁盘@ 512GB。将它们配置为非冗余RAID 1(剥离)配置。让我们从预先构建的镜像之一创建Hetzner服务器配置，以供installimage用于新操作系统。
$vim install-config.txt DRIVE1 /dev/nvme0n1 DRIVE2 /dev/nvme1n1 SWRAID 1 SWRAIDLEVEL 0 BOOTLOADER grub HOSTNAME myrootserver.theitroad.local PART /boot ext3 512M PART lvm vg0 200G #PART lvm vg0 all LV vg0 root/xfs 50G LV vg0 swap swap swap 16G LV vg0 var /var xfs 100G LV vg0 tmp /tmp xfs 30G IMAGE /root/.oldroot/nfs/install/../images/CentOS-76-64-minimal.tar.gz
配置完成后，安装镜像并创建分区。
# installimage -a -c install-config.txt
安装应该开始。
安装过程。
Hetzner Online GmbH - installimage
Your server will be installed now, this will take some minutes
You can abort at any time with CTRL+C ...
: Reading configuration done
: Loading image file variables done
: Loading centos specific functions done
1/17 : Deleting partitions done
2/17 : Test partition size done
3/17 : Creating partitions and /etc/fstab done
4/17 : Creating software RAID level 0 done
5/17 : Creating LVM volumes done
6/17 : Formatting partitions
: formatting /dev/md/0 with ext3 done
: formatting /dev/vg0/root with xfs done
: formatting /dev/vg0/swap with swap done
: formatting /dev/vg0/var with xfs done
: formatting /dev/vg0/tmp with xfs done
7/17 : Mounting partitions done
8/17 : Sync time via ntp done
: Importing public key for image validation done
9/17 : Validating image before starting extraction done
10/17 : Extracting image (local) done
11/17 : Setting up network config done
12/17 : Executing additional commands
: Setting hostname done
: Generating new SSH keys done
: Generating mdadm config done
: Generating ramdisk done
: Generating ntp config done
13/17 : Setting up miscellaneous files done
14/17 : Configuring authentication
: Fetching SSH keys done
: Disabling root password done
: Disabling SSH root login without password done
: Copying SSH keys done
15/17 : Installing bootloader grub done
16/17 : Running some centos specific functions done
17/17 : Clearing log files done
INSTALLATION COMPLETE
You can now reboot and log in to your new system with
the same password as you logged in to the rescue system.
安装完成后，重新启动服务器。
# shutdown -r now
登录并确认服务器安装。
[theitroad@localhost ~]# cat /etc/os-release NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7"
更新CentOS并安装基本软件包。
sudo yum -y update sudo yum -y install vim wget curl bash-completion epel-release telnet
我们现在已经在Hetzner根服务器上成功安装了CentOS 7.
