Install virtual machines in CentOS7 Command Line Mode

Install virtual machines in CentOS7 Command Line Mode

1. host environment description:

Operating System: CentOS7

System GUI: None

CPU: Intel4 generation, memory: 16 GB, Hard Disk 1 Tb

Host IP Address: 192.168.0.95 (Intranet)

Services enabled: ssh, ftp, and samba sharing (the shared directory is/var/data/test1 and the permission is read/write)

2. Preparations

Install kvm

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1. $ Sudoyum-yinstallqemu-kvmlib1_virt-installbridge-utilsvirt-install
2. $ Sudosystemctlstartlibvirtd
3. $ Sudosystemctlenablelibw.d

3. Add a bridge Nic named br0

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1. $ Sudonano/etc/sysconfig/network-scripts/ifcfg-br0

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1. DEVICE = br0
2. TYPE = Bridge
3. BOOTPROTO = none
4. ONBOOT = yes
5. IPADDR = 192.168.0.223
6. NETMASK = 255.255.255.0
7. GATEWAY = 192.168.0.1

4. Restart the network

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1. $ Sudosystemctlnetworkrestart

5. Upload the system image to the shared directory/var/data/test1.

Because the samba sharing service is enabled, you only need to enable sharing on other machines in the LAN.

Use "\ 192.168.0.95" in windows"

Use smb in Linux: // 192.168.0.95

You can find

If samba has set user and access permissions, use the corresponding user and password to log on.

Copy the system installation image to/var/data/test

6. Start Installation

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1. $ Sudovirt-install \
2. -- Name = CentOS7 \
3. -- Controllertype = scsi, model = virtio-scsi \
4. -- Diskpath =/var/lib/libvirt/images/CentOS7.dsk, size = 20, sparse = true, cache = none, bus = scsi \
5. -- Graphicsvnc, listen = 0.0.0.0, port = 5950 \
6. -- Networkbridge = kvm01 \
7. -- Vcpus = 2 -- ram = 2048 \
8. -- Cdrom =/var/data/test1/CentOS7.iso \
9. -- OS-type = linux \
10. -- OS-variant = rhel7

Parameter description:

Name ---> Virtual Machine name

Disk path -----> virtual hard disk storage path with any suffix

Size -----> virtual hard disk size (in G)

Port -----> vnc port

Vcpus ---> Number of system kernels

Ram ------> running memory

Cdrom ----> Installation Package location

OS-variant -----> because CentOS is based on Redhat, it corresponds to its version