获取软件包下载busybox安装包1.31.0当前最新稳定版本，并解压：wgethttps://qqq-1253133144.cos.ap-chengdu.myqcloud.com/bbb/busybox-1.31.0.tar.bz2tar -xjvf busybox-1.31.0.tar.bz2编译环境配置l编译和安装busybox：cd busybox-1.31.0/make defconfi

XFS文件系统扩容注意：备份！备份！备份！操作前备份！查看磁盘挂载、分区信息root@BJ-CentOS7 ~ # df -hT | grep vdc/dev/vdc1xfs 10G 33M 10G 1% /vdc1root@BJ-CentOS7 ~ #root@BJ-CentOS7 ~ # lsblk/dev/vdcNAMEMAJ:MIN RM SIZE RO TYPE MOUNTPOINTvd