virt-install 创建虚拟机模板

上传 iso 到宿主机

ls -l /data1/iso/

total 4422912
-rw-r--r-- 1 root root 1774077952 Jan 22 08:51 ctyunos-2.0.1-210625-x86_64-dvd.iso
-rw-r--r-- 1 root root 2754981888 May  7  2024 ubuntu-24.04-live-server-amd64.iso

创建虚拟磁盘（可选）

创建 qcow2 文件

qemu-img create -f qcow2 /data/ctyunos/ctyun-01_system.qcow2 20G

Formatting '/data/ctyunos/ctyun-01_system.qcow2', fmt=qcow2 size=21474836480 cluster_size=65536 lazy_refcounts=off refcount_bits=16

查看 qcow2 文件大小

ls -lh /data/ctyunos/ctyun-01_system.qcow2

-rw-r--r-- 1 root root 193K Jan 24 15:46 /data/ctyunos/ctyun-01_system.qcow2

查看支持的系统版本

osinfo-query os | grep centos

 centos6.0            | CentOS 6.0                                         | 6.0      | http://centos.org/centos/6.0            
 centos6.1            | CentOS 6.1                                         | 6.1      | http://centos.org/centos/6.1            
 centos6.2            | CentOS 6.2                                         | 6.2      | http://centos.org/centos/6.2            
 centos6.3            | CentOS 6.3                                         | 6.3      | http://centos.org/centos/6.3            
 centos6.4            | CentOS 6.4                                         | 6.4      | http://centos.org/centos/6.4            
 centos6.5            | CentOS 6.5                                         | 6.5      | http://centos.org/centos/6.5            
 centos6.6            | CentOS 6.6                                         | 6.6      | http://centos.org/centos/6.6            
 centos6.7            | CentOS 6.7                                         | 6.7      | http://centos.org/centos/6.7            
 centos6.8            | CentOS 6.8                                         | 6.8      | http://centos.org/centos/6.8            
 centos6.9            | CentOS 6.9                                         | 6.9      | http://centos.org/centos/6.9            
 centos7.0            | CentOS 7.0                                         | 7.0      | http://centos.org/centos/7.0

根据 iso 创建虚拟机

事前创建磁盘文件

virt-install \
    --name ctyun-2.0.1-01 \
    --ram 2048 \
    --vcpus 2  \
    --virt-type kvm  \
    --os-variant=generic \
    --description ctyun-2.0.1-01  \
    --network bridge=CN1,model=virtio  \
    --network bridge=CN2,model=virtio  \
    --graphics vnc,listen=0.0.0.0  \
    --disk path=/data/ctyunos/ctyun-01_system.qcow2,format=qcow2,bus=virtio \
    --disk path=/data/ctyunos/ctyun-01_data.qcow2,format=qcow2,size=20,bus=virtio \
    --cdrom=/data/iso/ctyunos-2.0.1-220311-x86_64-dvd.iso \
    --noautoconsole \
    --channel unix,path=/var/lib/libvirt/qemu/ctyun-2.0.1-01.agent,mode=bind,target_type=virtio,name=org.qemu.guest_agent.0 \
    --console pty,target_type=serial \
    --autostart

Starting install...
Allocating 'ctyun-01_data.qcow2'                                                                     |  20 GB  00:00:00
Domain installation still in progress. You can reconnect to 
the console to complete the installation process.

无需事先创建磁盘文件

virt-install \
    --name ctyun-2.0.1-01 \
    --ram 2048 \
    --vcpus 2  \
    --virt-type kvm  \
    --os-variant=generic \
    --description ctyun-2.0.1-01  \
    --network bridge=CN1,model=virtio  \
    --network bridge=CN2,model=virtio  \
    --graphics vnc,listen=0.0.0.0  \
    --disk path=/data/ctyunos/ctyun-01_system.qcow2,size=10,format=qcow2,bus=virtio \
    --disk path=/data/ctyunos/ctyun-01_data.qcow2,size=20,format=qcow2,bus=virtio \
    --cdrom=/data/iso/ctyunos-2.0.1-220311-x86_64-dvd.iso \
    --noautoconsole \
    --channel unix,path=/var/lib/libvirt/qemu/ctyun-2.0.1-01.agent,mode=bind,target_type=virtio,name=org.qemu.guest_agent.0 \
    --console pty,target_type=serial \
    --autostart

Starting install...
Allocating 'ctyun-01_system.qcow2'                                                                          |  10 GB  00:00:00     
Allocating 'ctyun-01_data.qcow2'                                                                     |  20 GB  00:00:00
Domain installation still in progress. You can reconnect to 
the console to complete the installation process.

查看虚机 ID

virsh list --all

 Id   Name          State
-----------------------------
 1    ctyun-2.0.1-01   running

查看虚机 VNC 信息

virsh vncdisplay 1

:0

通过 VNC 连接

安装过程。。。。

虚拟机开启

virsh start ctyun-2.0.1-01

Domain ctyun-2.0.1-01 started

查看虚拟机网卡信息

ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:de:1f:fe brd ff:ff:ff:ff:ff:ff
    inet 192.168.80.138/24 brd 192.168.80.255 scope global dynamic noprefixroute ens3
       valid_lft 1757sec preferred_lft 1757sec
    inet6 fe80::de9:e2c7:769d:93ed/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: ens4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:26:0d:d5 brd ff:ff:ff:ff:ff:ff
    inet 192.168.174.124/24 brd 192.168.174.255 scope global dynamic noprefixroute ens4
       valid_lft 1758sec preferred_lft 1758sec
    inet6 fe80::f02a:ae03:bb7d:2e96/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

查看虚拟机磁盘信息

fdisk -l

Disk /dev/vda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x31741cc3

Device     Boot   Start      End  Sectors Size Id Type
/dev/vda1  *       2048  2099199  2097152   1G 83 Linux
/dev/vda2       2099200 20971519 18872320   9G 8e Linux LVM


Disk /dev/vdb: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




Disk /dev/mapper/ctyunos-root: 7.102 GiB, 8585740288 bytes, 16769024 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/ctyunos-swap: 1 GiB, 1073741824 bytes, 2097152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

查看宿主机网卡信息

ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master CN2 state UP group default qlen 1000
    link/ether 00:0c:29:2f:c1:1a brd ff:ff:ff:ff:ff:ff
3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master CN1 state UP group default qlen 1000
    link/ether 00:0c:29:2f:c1:24 brd ff:ff:ff:ff:ff:ff
4: CN2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:2f:c1:1a brd ff:ff:ff:ff:ff:ff
    inet 192.168.174.123/24 brd 192.168.174.255 scope global noprefixroute CN2
       valid_lft forever preferred_lft forever
    inet6 fe80::51c3:93b:274:6372/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
5: CN1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:2f:c1:24 brd ff:ff:ff:ff:ff:ff
    inet 192.168.80.137/24 brd 192.168.80.255 scope global noprefixroute CN1
       valid_lft forever preferred_lft forever
    inet6 fe80::2392:17b5:d36:9ae/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
6: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:fe:8d:0f brd ff:ff:ff:ff:ff:ff
    inet 192.168.124.1/24 brd 192.168.124.255 scope global virbr0
       valid_lft forever preferred_lft forever
9: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master CN1 state UNKNOWN group default qlen 1000
    link/ether fe:54:00:de:1f:fe brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc54:ff:fede:1ffe/64 scope link 
       valid_lft forever preferred_lft forever
10: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master CN2 state UNKNOWN group default qlen 1000
    link/ether fe:54:00:26:0d:d5 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc54:ff:fe26:dd5/64 scope link 
       valid_lft forever preferred_lft forever

查看网桥信息

brctl show

bridge name	bridge id		STP enabled	interfaces
CN1		8000.000c292fc124	yes		ens192
							vnet0
CN2		8000.000c292fc11a	yes		ens160
							vnet1
virbr0		8000.525400fe8d0f	yes

posted @ 2025-01-27 08:56 小吉猫阅读(102) 评论(0) 收藏举报

刷新页面返回顶部

小吉猫

virt-install 创建虚拟机模板

上传 iso 到宿主机

创建虚拟磁盘（可选）

创建 qcow2 文件

查看 qcow2 文件大小

查看支持的系统版本

根据 iso 创建虚拟机

事前创建磁盘文件

无需事先创建磁盘文件

查看虚机 ID

查看虚机 VNC 信息

通过 VNC 连接

虚拟机开启

查看虚拟机网卡信息

查看虚拟机磁盘信息

查看宿主机网卡信息

查看网桥信息

公告