一、關(guān)閉你的虛擬機(jī)系統(tǒng),找到如下內(nèi)容:選擇"Edit Virtual mache settings”
點(diǎn)擊"Expand“
擴(kuò)大虛擬機(jī)的空間為"40G"(根據(jù)個(gè)人需要填寫空間大小)弦牡。但是linux下面并不可見(jiàn)躏率。
二秆麸、使用linux下的fdisk工具進(jìn)行分區(qū)。
用root用戶登錄到你的linux系統(tǒng)碴裙,
執(zhí)行df -T 查看主分區(qū)的文件系統(tǒng)格式centos7變成了xfs centos6還是ext4 所以這步很重要不然后面你的分區(qū)不對(duì)你擴(kuò)容失敗
如下圖:
查看你系統(tǒng)的分區(qū)
fdisk -l
會(huì)出現(xiàn)以下的信息:
Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
/dev/sda2 64 2611 20458496 8e Linux LVM
Disk /dev/mapper/vg_zxw-lv_root: 18.8 GB, 18832424960 bytes
255 heads, 63 sectors/track, 2289 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_zxw-lv_root doesn't contain a valid partition table
Disk /dev/mapper/vg_zxw-lv_swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_zxw-lv_swap doesn't contain a valid partition table
根據(jù)提示信息可以判斷出此系統(tǒng)的磁盤接口為SCSI,對(duì)應(yīng)“sda”如果上面的紅色字體是“hda”点额,那么此系統(tǒng)的磁盤接口為IDE對(duì)應(yīng)“hda”所以我做一下操作:
fdisk /dev/sda/
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help):m //“ 列出fdisk的幫助”
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help):n //” 命令n用于添加新分區(qū)"
Command action
e extended
p primary partition (1-4)
p //" 選擇創(chuàng)建主分區(qū)"此時(shí)舔株,
Partition number (1-4):3 //fdisk會(huì)讓你選擇主分區(qū)的編號(hào),如果已經(jīng)有了主分區(qū)sda1咖楣,sda2督笆,那么編號(hào)就選3,即要?jiǎng)?chuàng)建的該分區(qū)為sda3.
First cylinder (2611-3916, default 2611): //此時(shí)诱贿,fdisk又會(huì)讓你選擇該分區(qū)的開始值這個(gè)就是分區(qū)的Start 值(start cylinder)娃肿;這里最好直接按回車咕缎,
Using default value 2611
Last cylinder, +cylinders or +size{K,M,G} (2611-3916, default 3916): //此時(shí),fdisk又會(huì)讓你選擇該分區(qū)的開始值這個(gè)就是分區(qū)的End 值這里最好直接按回車料扰,
Using default value 3916
Command (m for help): w //w "保存所有并退出凭豪,分區(qū)劃分完畢"
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
三、我們的新建分區(qū)/dev/sda3晒杈,卻不是LVM的嫂伞。所以,接下來(lái)使用fdisk將其改成LVM的拯钻。
fdisk /dev/sda
Command (m for help): m
Command (m for help): t //改變分區(qū)系統(tǒng)id Partition number (1-4): 3 //指定分區(qū)號(hào)
Hex code (type L to list codes): 8e //指定要改成的id號(hào)帖努,8e代表LVM。
Command (m for help): w
四粪般、重啟系統(tǒng)后拼余,登陸系統(tǒng)。
五亩歹、格式化該新添加的分區(qū):
fdisk -l
Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
/dev/sda2 64 2611 20458496 8e Linux LVM
/dev/sda3 2611 3916 10483750 8e Linux LVM
你會(huì)發(fā)現(xiàn)多了一塊分區(qū)匙监。
mkfs -t ext3 /dev/sda3
此時(shí)我們就可以使用該新增分區(qū)啦:
六、擴(kuò)充新分區(qū)
lvs
pvcreate /dev/sda3
Physical volume "/dev/sda3" successfully created
vgextend VolGroup00 /dev/sda3 (其中是當(dāng)前需要擴(kuò)充的lvm組名小作,可以通過(guò)df -h查看亭姥,例如我的是: /dev/mapper/VolGroup00-LogVol00)
vgdisplay
--- Volume group ---
VG Name vg_zxw
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 4994 / 10.01GB
VG UUID sqBgTs-iA8x-tCXZ-KYxK-SyWS-TfXQ-uBsLaR
(主要查看Free PE / Size 4994 / 10.01GB,說(shuō)明我們最多可以有10.01GB的擴(kuò)充空間顾稀。我一般選擇小于10.01GB)
lvextend -L+9.8G /dev/VolGroup00/LogVol00 /dev/sda3
Logical volume LogVol00 successfully resized
e2fsck -a /dev/VolGroup00/LogVol00
(做fsck达罗,檢查文件系統(tǒng))
resize2fs /dev/VolGroup00/LogVol00
fdisk -l //查看一下你的系統(tǒng)磁盤空間"/"目錄變成了40GB
ok,這樣就大功告成了础拨。