主要腳本整理

lsblk fdisk /dev/sdanp 主分區(qū)e 擴(kuò)展分區(qū)+99Gw partprobe lsblk lvmpvcreate /dev/sda3pvdisplayvgextend centos /dev/sda3vgdisplay lvextend -l +100%FREE /dev/centos/root xfs_growfs /dev/centos/root df -h

VMware擴(kuò)容20G實操演示

[root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 40G 0 disk ├─sda1 8:1 0 1G 0 part /boot └─sda2 8:2 0 19G 0 part ├─centos-root 253:0 0 17G 0 lvm /└─centos-swap 253:1 0 2G 0 lvm [SWAP] sr0 11:0 1 133M 0 rom /run/media/zxl/GParted-live [root@localhost ~]# fdisk /dev/sda 歡迎使用 fdisk (util-linux 2.23.2)。更改將停留在內(nèi)存中，直到您決定將更改寫入磁盤。 使用寫入命令前請三思。命令(輸入 m 獲取幫助)：n Partition type:p primary (2 primary, 0 extended, 2 free)e extended Select (default p): Using default response p 分區(qū)號 (3,4，默認(rèn) 3)： 起始 扇區(qū) (41943040-83886079，默認(rèn)為 41943040)： 將使用默認(rèn)值 41943040 Last 扇區(qū), +扇區(qū) or +size{K,M,G} (41943040-83886079，默認(rèn)為 83886079)： 將使用默認(rèn)值 83886079 分區(qū) 3 已設(shè)置為 Linux 類型，大小設(shè)為 20 GiB命令(輸入 m 獲取幫助)：w The partition table has been altered!Calling ioctl() to re-read partition table.WARNING: Re-reading the partition table failed with error 16: 設(shè)備或資源忙. 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) 正在同步磁盤。 [root@localhost ~]# partprobe Warning: 無法以讀寫方式打開 /dev/sr0 (只讀文件系統(tǒng))。/dev/sr0 已按照只讀方式打開。 Error: 無效的分區(qū)表 - /dev/sr0 出現(xiàn)遞歸分區(qū)。 [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 40G 0 disk ├─sda1 8:1 0 1G 0 part /boot ├─sda2 8:2 0 19G 0 part │ ├─centos-root 253:0 0 17G 0 lvm / │ └─centos-swap 253:1 0 2G 0 lvm [SWAP] └─sda3 8:3 0 20G 0 part sr0 11:0 1 133M 0 rom /run/media/zxl/GParted-live [root@localhost ~]# lvm lvm> pvcreate /dev/sda3 WARNING: dos signature detected on /dev/sda3 at offset 510. Wipe it? [y/n]: yWiping dos signature on /dev/sda3.Physical volume "/dev/sda3" successfully created. lvm> pvdisplay --- Physical volume ---PV Name /dev/sda2VG Name centosPV Size <19.00 GiB / not usable 3.00 MiBAllocatable yes (but full)PE Size 4.00 MiBTotal PE 4863Free PE 0Allocated PE 4863PV UUID Hhi1KI-pLeY-Jh5H-ztsH-0Fjn-o3iN-xw9Dfy"/dev/sda3" is a new physical volume of "20.00 GiB"--- NEW Physical volume ---PV Name /dev/sda3VG Name PV Size 20.00 GiBAllocatable NOPE Size 0 Total PE 0Free PE 0Allocated PE 0PV UUID Fw8jKJ-P35z-R67s-oPCN-16pj-3IR1-YTpLQ7lvm> vgextend centos /dev/sda3Volume group "centos" successfully extended lvm> pvdisplay --- Physical volume ---PV Name /dev/sda2VG Name centosPV Size <19.00 GiB / not usable 3.00 MiBAllocatable yes (but full)PE Size 4.00 MiBTotal PE 4863Free PE 0Allocated PE 4863PV UUID Hhi1KI-pLeY-Jh5H-ztsH-0Fjn-o3iN-xw9Dfy--- Physical volume ---PV Name /dev/sda3VG Name centosPV Size 20.00 GiB / not usable 4.00 MiBAllocatable yes PE Size 4.00 MiBTotal PE 5119Free PE 5119Allocated PE 0PV UUID Fw8jKJ-P35z-R67s-oPCN-16pj-3IR1-YTpLQ7lvm> vgdisplay --- Volume group ---VG Name centosSystem ID Format lvm2Metadata Areas 2Metadata Sequence No 4VG Access read/writeVG Status resizableMAX LV 0Cur LV 2Open LV 2Max PV 0Cur PV 2Act PV 2VG Size 38.99 GiBPE Size 4.00 MiBTotal PE 9982Alloc PE / Size 4863 / <19.00 GiBFree PE / Size 5119 / <20.00 GiBVG UUID nhvJGV-brrI-Kq8K-GpCu-dQbs-OOsz-3j8FOTlvm> lvextend -l +100%FREE /dev/centos/rootSize of logical volume centos/root changed from <17.00 GiB (4351 extents) to 36.99 GiB (9470 extents).Logical volume centos/root successfully resized. lvm> ^C [root@localhost ~]# xfs_growfs /dev/centos/root meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=1113856 blks= sectsz=512 attr=2, projid32bit=1= crc=1 finobt=0 spinodes=0 data = bsize=4096 blocks=4455424, 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 4455424 to 9697280 [root@localhost ~]# df -h 文件系統(tǒng) 容量 已用 可用 已用% 掛載點(diǎn) devtmpfs 974M 0 974M 0% /dev tmpfs 991M 12K 991M 1% /dev/shm tmpfs 991M 11M 980M 2% /run tmpfs 991M 0 991M 0% /sys/fs/cgroup /dev/mapper/centos-root 37G 11G 27G 28% / /dev/sda1 1014M 172M 843M 17% /boot tmpfs 199M 20K 199M 1% /run/user/1000 /dev/sr0 133M 133M 0 100% /run/media/zxl/GParted-live [root@localhost ~]#

總結(jié)

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