分区以vfat格式挂载，只支持最大4GB的文件；需要修改成以ext4格式挂载
[root@64-128 ~]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/vda1 ext4 103079844 2993172 95351840 4% /
devtmpfs devtmpfs 65917808 0 65917808 0% /dev
tmpfs tmpfs 65928572 0 65928572 0% /dev/shm
tmpfs tmpfs 65928572 17160 65911412 1% /run
tmpfs tmpfs 65928572 0 65928572 0% /sys/fs/cgroup
tmpfs tmpfs 13185716 0 13185716 0% /run/user/0
tmpfs tmpfs 61440 0 61440 0% /var/log/rtlog
/dev/vdb vfat 1073479712 32 1073479680 1% /mnt
查看分区格式
[root@64-128 ~]# sudo file -s /dev/vdb
/dev/vdb: x86 boot sector, mkdosfs boot message display, code offset 0x58, OEM-ID "mkfs.fat", sectors/cluster 64, Media descriptor 0xf8, heads 64, sectors 2147483648 (volumes > 32 MB) , FAT (32 bit), sectors/FAT 262081, serial number 0x6f30216d, label: "ephemeral0 "
umount分区
umount /mnt
格式化为ext4文件系统
[root@64-128 ~]# mkfs.ext4 /dev/vdb
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
67108864 inodes, 268435456 blocks
13421772 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2415919104
8192 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
重新挂载
mount -t ext4 /dev/vdb /mnt
