Linux EXT4格式硬盘扩容

fdisk 对硬盘进行扩容( 待续...)

https://www.cnblogs.com/wangzhigang/p/5530741.html

#e2fsck -f /dev/mapper/ycgsstore_sdb-wmy

#resize2fs /dev/mapper/ycgsstore_sdb-wmy

https://www.linuxquestions.org/questions/linux-general-1/df-showing-incorrect-used-space-after-lvextend-758945/