免费扩容UCloud系统盘到40G

UCloud最近搞活动,香港地区cn2路线1核1G 40G硬盘的云主机一年才150块钱(需实名认证和绑定银行卡,详询qq:2851147893,非广告!)。稍微有点坑的是创建实例时系统盘默认才20G,想免费用40G需用手动操作一番。以下是免费扩容到40G的步骤。

  1. 登录Ucloud云管理后台,关机;
  2. 点开主机右边的“…”,找到“更改配置”;
  3. 选择“调整磁盘容量”,点“继续”;
  4. 调整容量到40G,配置费用都是0,再多就要加钱了!然后点击确定;
  5. 重新开机;
  6. 安装growpart: yum install -y cloud-utils
  7. 扩容块设备并重启:growpart /dev/vda 1 && reboot
  8. 扩容文件系统:xfs_growfs /dev/vda1

注意,以上操作适用于CentOS系统,其他系统可能略有出入,例如ext4文件系统的扩容设备则是:resize2fs /dev/vda1

有了40G,基本上就和其他云服务器厂商在同一水准了。

另附一些辅助命令:

  1. df -Th: 查看系统的磁盘使用情况及文件系统。扩容前是20G,扩容成功后应该出现40G,文件系统是xfs:

磁盘使用情况磁盘使用情况

  1. fdisk -l: 列出块设备。未扩容前是20G,扩容成功后变成40G:

fdisk输出fdisk输出

参考

  1. https://docs.ucloud.cn/compute/uhost/guide/disk
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