部署kvm

KVM虚拟化

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1、部署kvm

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环境说明：
系统：CentOS7
IP：192.168.89.157
虚拟机设置（内存：8G 磁盘：200G 虚拟化功能：开启）
设置虚拟机内存，添加一块200G的硬盘

//新建分区，将硬盘所有大小都给这个分区
[root@157 ~]# parted /dev/sdb
GNU Parted 3.2
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mklabel
New disk label type? msdos
(parted) unit
Unit?  [compact]? MiB
(parted) p
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 204800MiB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start  End  Size  Type  File system  Flags

(parted) mkpart
Partition type?  primary/extended? primary
File system type?  [ext2]? xfs
Start? 10MiB
End? 204790MiB
(parted) p
Model: VMware, VMware Virtual S (scsi)
Disk /dev/sdb: 204800MiB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start    End        Size       Type     File system  Flags
 1      10.0MiB  204790MiB  204780MiB  primary  xfs          lba

(parted) q
Information: You may need to update /etc/fstab.

[root@151 ~]# mkfs.xfs /dev/sdb1
meta-data=/dev/sdb1              isize=512    agcount=4, agsize=13105920 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=0 inobtcount=0
data     =                       bsize=4096   blocks=52423680, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=25597, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@157 ~]#  blkid /dev/sdb1
/dev/sdb1: UUID="61f2a261-3735-4a8c-a600-2c696ae3a3e0" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="89539e83-01"
[root@151 ~]# mkdir /kvmdata
[root@151 ~]# vim /etc/fstab
UUID=61f2a261-3735-4a8c-a600-2c696ae3a3e0  /kvmdata xfs defaults 0 0
[root@157 ~]# mount -a
[root@157 ~]# df -Th /dev/sdb1
Filesystem     Type  Size  Used Avail Use% Mounted on
/dev/sdb1      xfs   200G  1.5G  199G   1% /kvmdata
[root@151 ~]#

//KVM安装
//关闭防火墙和selinux
[root@157 ~]# systemctl stop firewalld
[root@157 ~]# systemctl disable firewalld
[root@157 ~]# cat /etc/sysconfig/selinux
SELINUX=disabled

//部署yum源
[root@157 ~]# cd /etc/yum.repos.d
[root@157 yum.repos.d]# rm -rf*
[root@157 yum.repos.d]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo

//安装所需软件包
[root@157 ~]# yum -y install epel-release vim wget net-t