统信服务器操作系统【qcow2 镜像空间扩容】方案

准备环境

1、统信服务器操作系统 V20 e 版本或V20 a 版本安装完成

2、安装libguestfs-tools-c扩容工具

#yum install libguestfs-tools-c

扩容步骤

1、检查环境信息

1.1、查看镜像信息

qemu-img info uniontechos-server-20-1050a-amd64-gui.qcow2

image: uniontechos-server-20-1050a-amd64-gui.qcow2

file format: qcow2 virtual size: 12.5 GiB (13421772800 bytes) #系统安装后的默认大小

disk size: 3.24 GiB

cluster_size: 65536

Format specific information:

compat: 1.1 lazy

refcounts: false

refcount bits: 16

corrupt: false

1.2、查看镜像分区信息

virt-df uniontechos-server-20-1050a-amd64-gui.qcow2

文件系统 1K-blocks 已用空间 可用空间 使用百分比%

uniontechos-server-20-1050a-amd64-gui.qcow2:/dev/sda1

1038336 197216 841120 19%

uniontechos-server-20-1050a-amd64-gui.qcow2:/dev/uniontechos/root

11524096 6933576 4590520 61%

1.3、确认需要扩容的分区名

virt-filesystems --partitions --long -a uniontechos-server-20-1050a-amd64-gui.qcow2

Name Type MBR Size Parent

/dev/sda1 partition 83 1073741824 /dev/sda

/dev/sda2 partition 8e 12339642368 /dev/sda

2、扩容

2.1、备份镜像

cp uniontechos-server-20-1050a-amd64-gui.qcow2

uniontechos-server-20-1050a-amd64-gui.qcow2-bak

2.2、创建新的镜像文件，并指定空间

qemu-img create -f qcow2 1050a-expand.qcow2 100G

2.3、将系统扩容到新的镜像

virt-resize--expand/dev/sda2 uniontechos-server-20-1050a-amd64-gui.qcow2

1050a-expand.qcow2

[ 0.0] Examining uniontechos-server-20-1050a-amd64-gui.qcow2

**********

Summary of changes:

/dev/sda1: This partition will be left alone.

/dev/sda2: This partition will be resized from 11.5G to 99.0G. The LVM PV

on /dev/sda2 will be expanded using the ??pvresize?? method.

**********

[ 2.4] Setting up initial partition table on 1050a-expand.qcow2

[ 3.4] Copying /dev/sda1

100% ????????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????????? --:--

[ 5.5] Copying /dev/sda2

100% ????????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????????????? 00:00

[ 110.8] Expanding /dev/sda2 using the ??pvresize?? method

Resize operation completed with no errors. Before deleting the old disk,

carefully check that the resized disk boots and works correctly.

3、扩容 lvm 分区

guestfish-i --network -a1050a-expand.qcow2

Welcome to guestfish, the guest

filesystem shell for editing virtual machine filesystems and disk images.

4、扩容 lvm 分区

Type: ‘help’ for help on commands

‘man’ to read the manual

‘quit’ to quit the shell

Operating system: UnionTech OS Server 20

/dev/uniontechos/root mounted on /

/dev/sda1 mounted on /boot

><fs> command'lvs'

><fs> command'lvextend -l +100%FREE /dev/mapper/uniontechos-root

><fs> command'xfs_growfs /dev/mapper/uniontechos-root

5、验证

5.1、再次查看镜像空间

查看镜像空间

5.2、再次查看分区空间

再次查看分区空间

5.3、重新启动镜像

1050a-expand.qcow2