pve lxc 虚拟机 raw 格式磁盘扩容

1.关闭要扩容的lxc虚拟机
2.进入pve的shell
bash 复制代码
#安装必要软件, CTid=101 的LXC 为例
apt install guestfs-tools
 
cd /var/lib/vz/images/101/
 
#备份已有数据
cp vm-101-disk-0.raw vm-101.bak
 
#查看raw 磁盘情况
virt-df -h vm-101-disk-0.raw
 
#执行结果：
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Filesystem                                Size       Used  Available  Use%
vm-101-disk-0.raw:/dev/sda                6.8G       927M       5.5G   14%
 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
guestfish
><fs> add vm-101-disk-0.raw
><fs> run
><fs> list-filesystems
/dev/sda: ext4
><fs> e2fsck-f /dev/sda
><fs> resize2fs-size /dev/sda 3000M
><fs> e2fsck-f /dev/sda
><fs> quit
 
#查看调整后的磁盘情况
virt-df -h vm-101-disk-0.raw
 
#执行结果
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Filesystem                                Size       Used  Available  Use%
vm-101-disk-0.raw:/dev/sda                2.8G       928M       1.7G   33%
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
#使用qemu-img 调整磁盘大小
qemu-img resize --shrink -f raw vm-101-disk-0.raw 3G
 
#执行结果
------------------------------------------------
Image resized.
------------------------------------------------
 
#查看磁盘信息
qemu-img info vm-101-disk-0.raw 
 
#执行结果
---------------------------------------------------------------------------------------------------------------------------------------
 
image: vm-101-disk-0.raw
file format: raw
virtual size: 3 GiB (3221225472 bytes)
disk size: 1.68 GiB
Child node '/file':
    filename: vm-101-disk-0.raw
    protocol type: file
    file length: 3 GiB (3221225472 bytes)
    disk size: 1.68 GiB
------------------------------------------------------------------------------------------------------------------------------------
 
 
#修改LXC 信息,磁盘大小调整到3G
nano /etc/pve/lxc/101.conf
 
#重新启动LXC
参考文献：
shrink virtual disk size of VM
pve lxc 虚拟机 raw 格式 磁盘 扩容

pve lxc 虚拟机 raw 格式磁盘扩容
