[root@iZ25ywakjatZ ~]# resize2fs /dev/vda1
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/vda1 is mounted on /; on-line resizing required
old desc_blocks = 2, new_desc_blocks = 4
Performing an on-line resize of /dev/vda1 to 13106775 (4k) blocks.
The filesystem on /dev/vda1 is now 13106775 blocks long.
备注: