Device Boot Start End Blocks Id System /dev/sda1 * 1 26 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 26 2350 18668544 8e Linux LVM
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'). -----小小分割线-----
Command (m for help): n
-----小小分割线，输入n代表新建的意思-----
Command action e extended p primary partition (1-4) -----小小分割线，输入p代表分区表，只能1至4-----
Partition number (1-4): 3 #新建3号分区
-----小小分割线，划分多少内存给3号分区-----
First cylinder (2350-4960, default 2350): Using default value 2350 Last cylinder, +cylinders or +size{K,M,G} (2350-4960, default 4960): Using default value 4960
Device Boot Start End Blocks Id System /dev/sda1 * 1 26 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 26 2350 18668544 8e Linux LVM /dev/sda3 2350 4960 20966832 83 Linux
-----小小分割线，这里的t是更改系统分区ID-----
Command (m for help): t Partition number (1-4): 3 Hex code (type L to list codes): 8e Changed system type of partition 3 to 8e (Linux LVM)
-----小小分割线，w代表写入并退出，完成-----
Command (m for help): w 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.
另其生效
重启服务器或者partprobe创建物理卷
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[root@Mysql01-213-66 ~]# pvcreate /dev/sda3 Physical volume "/dev/sda3" successfully created
查询物理卷
使用vgscan
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[root@Mysql01-213-66 ~]# vgscan Reading all physical volumes. This may take a while... Found volume group "vg_mysql0121366" using metadata type lvm2
使用新增物理卷扩展vg
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[root@Mysql01-213-66 ~]# vgextend vg_mysql0121366 /dev/sda3 Volume group "vg_mysql0121366" successfully extended [root@Mysql01-213-66 ~]# vgscan Reading all physical volumes. This may take a while... Found volume group "vg_mysql0121366" using metadata type lvm2
[root@Mysql01-213-66 ~]# vgdisplay --- Volume group --- VG Name vg_mysql0121366 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 2 Act PV 2 VG Size 37.79 GiB PE Size 4.00 MiB Total PE 9675 Alloc PE / Size 4557 / 17.80 GiB Free PE / Size 5118 / 19.99 GiB VG UUID Zy2PVv-xSsx-NEAv-L6ba-G8Oy-tBBq-5zXKQm
[root@Mysql01-213-66 ~]# lvdisplay --- Logical volume --- LV Path /dev/vg_mysql0121366/LogVol01 LV Name LogVol01 VG Name vg_mysql0121366 LV UUID 5znkJ2-wdeZ-Y2o1-ECDS-gzzl-PqaS-qo2yZR LV Write Access read/write LV Creation host, time Mysql01-213-66, 2015-08-30 20:42:13 +0800 LV Status available # open 1 LV Size 8.00 GiB Current LE 2048 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 --- Logical volume --- LV Path /dev/vg_mysql0121366/LogVol00 LV Name LogVol00 VG Name vg_mysql0121366 LV UUID b1FV1n-iKyK-kZ23-glRO-opFh-gDRp-TzWNcL LV Write Access read/write LV Creation host, time Mysql01-213-66, 2015-08-30 20:42:14 +0800 LV Status available # open 1 LV Size 2.00 GiB Current LE 512 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Logical volume --- LV Path /dev/vg_mysql0121366/LogVol02 LV Name LogVol02 VG Name vg_mysql0121366 LV UUID eoVdk3-cbcP-9PlI-kZBL-6pY2-Jpbl-1WI2uH LV Write Access read/write LV Creation host, time Mysql01-213-66, 2015-08-30 20:42:14 +0800 LV Status available # open 1 LV Size 7.80 GiB Current LE 1997 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1
[root@Mysql01-213-66 ~]# resize2fs -f /dev/mapper/vg_mysql0121366-LogVol01 resize2fs 1.41.12 (17-May-2010) resize2fs: Bad magic number in super-block while trying to open /dev/mapper/vg_mysql0121366-LogVol01 Couldn't find valid filesystem superblock.
