最近一直在编译、安装一些tf部署相关的软件，发现磁盘空间不够用了，选择增加磁盘空间：
1，关闭VMware中对应的centos虚拟机后，编辑配置选项，拓展磁盘空间；
2，开机进入虚拟机：
[root@bogon marshall]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, untilyou decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type:
p primary (3 primary, 0extended, 1 free)
e extended
Select (default e): p
Selected partition 4
First sector (41943040-83886079, default41943040): 41943040
Last sector, +sectors or +size{K,M,G}(41943040-83886079, default 83886079): 83886079
Partition 4 of type Linux and of size 20GiB is set
Command (m for help): t
Partition number (1-4, default 4): 4
Hex code (type L to list all codes): L
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIXroot 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIXusr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16<32M 40 Venix 80286 85 Linux extended c7 Syrinx
5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FSdata
6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS /.
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de DellUtility
8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt
9 AIXbootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access
a OS/2Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs
e W95FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT
f W95Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 5c PriamEdisk a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary
16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 64 NovellNetware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 70 DiskSecureMult bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT
1e Hidden W95 FAT1 80 Old Minix
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'LinuxLVM'
Command (m for help): p
Disk /dev/sda: 42.9 GB, 42949672960 bytes,83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes /512 bytes
I/O size (minimum/optimal): 512 bytes / 512bytes
Disk label type: dos
Disk identifier: 0x00019c50
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 616447 307200 83 Linux
/dev/sda2 616448 4810751 2097152 82 Linux swap / Solaris
/dev/sda3 4810752 41943039 18566144 83 Linux
/dev/sda4 41943040 83886079 20971520 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition tablefailed with error 16: Device or resource busy.
The kernel still uses the old table. Thenew table will be used at
the next reboot or after you runpartprobe(8) or kpartx(8)
Syncing disks.
3，关机reboot
4，创建vg和lv
Vgdisplay和lvdisplay均没有显示任何信息，添加新vg和lv
[root@bogon marshall]# vgcreate vg0/dev/sda4 -s 64M
Volume group "vg0" successfully created
[root@bogon marshall]# lvcreate -L 19G -nlv1 vg0
Logical volume "lv1" created.
[root@bogon /]# mkfs.xfs /dev/vg0/lv1
meta-data=/dev/vg0/lv1 isize=512 agcount=4, agsize=1245184 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=4980736,imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks,lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@bogon /]# mkdir /bigdata/
[root@bogon /]# mount /dev/vg0/lv1/bigdata/
[root@bogon /]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda3 xfs 18G 18G 511M 98% /
devtmpfs devtmpfs 1.4G 0 1.4G 0% /dev
tmpfs tmpfs 1.4G 156K 1.4G 1% /dev/shm
tmpfs tmpfs 1.4G 9.0M 1.4G 1% /run
tmpfs tmpfs 1.4G 0 1.4G 0% /sys/fs/cgroup
/dev/sda1 xfs 297M 203M 95M 69% /boot
.host:/ vmhgfs 224G 201G 23G 90% /mnt/hgfs
tmpfs tmpfs 284M 8.0K 284M 1% /run/user/1000
/dev/mapper/vg0-lv1 xfs 19G 33M 19G 1% /bigdata