1、查看硬盤使用情況

df -h -------------------- Filesystem Size Used Avail Use% Mounted on devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 3.9G 12K 3.9G 1% /dev/shm tmpfs 3.9G 14M 3.8G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/mapper/centos-root 26G 17G 17G 100% / /dev/sda1 1014M 233M 782M 23% /boot tmpfs 781M 0 781M 0% /run/user/0

發現/dev/mapper/centos-root已使用100%

2、在VMware Workstation中設置擴容

選擇到虛擬機，右鍵設置，選擇硬盤，擴容，輸入容量。

3、新建分區

查看分區情況

fdisk -l ------------------ 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 / 512 bytes Disk label type: dos Disk identifier: 0x000b9f67Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 41943039 19921920 8e Linux LVM /dev/sda3 41943040 62914559 10485760 8e Linux LVMDisk /dev/mapper/centos-root: 27.9 GB, 27913093120 bytes, 54517760 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/mapper/centos-swap: 2147 MB, 2147483648 bytes, 4194304 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes

現在容量已變成Disk /dev/sda: 42.9 GB說明擴容成功
現在進行分區操作

fdisk /dev/sda #上面查詢出的掛載的設備號

查看分區情況

格式化分區

重啟電腦

4、擴容主分區

查看虛擬卷組名

vgdisplay --------------- Volume group ---VG Name centosSystem ID Format lvm2Metadata Areas 2Metadata Sequence No 5VG Access read/writeVG Status resizableMAX LV 0Cur LV 2Open LV 2Max PV 0Cur PV 2Act PV 2VG Size 28.99 GiBPE Size 4.00 MiBTotal PE 7422Alloc PE / Size 7167 / <28.00 GiBFree PE / Size 255 / 1020.00 MiBVG UUID 27c394-CgrW-lNJT-7KNZ-Mkkr-IXFL-EL2vuB

進入lvm管理

lvm lvm> pvcreate /dev/sda4 #剛才新建分區Physical volume "/dev/sda4" successfully created. lvm> vgextend centos /dev/sda4 #centos通過上面命令查詢出來的VG NameVolume group "centos" successfully extended lvm> lvextend -L +10G /dev/mapper/centos-root #擴展已有卷的容量

以上是卷擴了容量，執行以下命令來文件擴容

resize2fs /dev/mapper/centos-root ------------------------------ resize2fs 1.42.9 (28-Dec-2013) resize2fs: Bad magic number in super-block while trying to open /dev/mapper/centos-root Couldn't find valid filesystem superblock.

出現了錯誤
查詢文件系統格式為xfs

cat /etc/fstab | grep centos-root /dev/mapper/centos-root / xfs defaults 0 0

使用xfs命令擴容

xfs_growfs /dev/mapper/centos-root ---------------------------- meta-data=/dev/mapper/centos-root isize=512 agcount=7, agsize=1113856 blks= sectsz=512 attr=2, projid32bit=1= crc=1 finobt=0 spinodes=0 data = bsize=4096 blocks=6814720, imaxpct=25= sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=2560, version=2= sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 6814720 to 9436160

查詢

df -h ---------------------- Filesystem Size Used Avail Use% Mounted on devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 3.9G 12K 3.9G 1% /dev/shm tmpfs 3.9G 14M 3.8G 1% /run tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/mapper/centos-root 36G 17G 20G 46% / /dev/sda1 1014M 233M 782M 23% /boot tmpfs 781M 0 781M 0% /run/user/0

配置成功

總結

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