最近一直在編譯、安裝一些tf部署相關的軟體，發現磁碟空間不夠用了，選擇增加磁碟空間：

1，關閉VMware中對應的centos虛擬機器後，編輯配置選項，拓展磁碟空間；

2，開機進入虛擬機器：

[[email protected] 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，關機reboot

4，建立vg和lv

Vgdisplay和lvdisplay均沒有顯示任何資訊，新增新vg和lv

[[email protected] marshall]# vgcreate vg0/dev/sda4  -s 64M

 Volume group "vg0" successfully created

[[email protected] marshall]# lvcreate -L 19G -nlv1 vg0

 Logical volume "lv1" created.

[[email protected] /]# 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

[[email protected] /]# mkdir /bigdata/

[[email protected] /]# mount /dev/vg0/lv1/bigdata/

[[email protected] /]# 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