255 heads, 63 sectors/track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
/dev/sdb1 1 13 104391 8e Linux LVM #看到Id是8e哦.
/dev/sdb2 14 26 104422+ 8e Linux LVM
/dev/sdb3 27 39 104422+ 8e Linux LVM
Physical volume "/dev/sdb1" successfully created
Physical volume "/dev/sdb2" successfully created
Physical volume "/dev/sdb3" successfully created
Reading all physical volumes. This may take a while...
Couldn't find device with uuid '6T3gUb-fFdj-MMUL-wUTN-qdXG-8iEP-KsWbgb'.
Couldn't find all physical volumes for volume group VolGroup00.
Couldn't find device with uuid '6T3gUb-fFdj-MMUL-wUTN-qdXG-8iEP-KsWbgb'.
Couldn't find all physical volumes for volume group VolGroup00.
Volume group "VolGroup00" not found
[root@localhost /]# vgcreate vg0 /dev/sdb1 /dev/sdb2 #建立卷组,名字叫:vg0
Volume group "vg0" successfully created
[root@localhost /]#
[root@localhost /]# vgdisplay vg0 # 查看下卷组vg0得情况
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size 200.00 MB
PE Size 4.00 MB #默认PE 都是4M, 通过 vgcreate -s 8M 可修改.
Total PE 50
Alloc PE / Size 0 / 0
Free PE / Size 50 / 200.00 MB
VG UUID WKRPJT-MI6G-vGk9-vne2-Gfg2-sAry-llsF7B
请输入内容
/dev/cdrom: open failed: Read-only file system
Rounding up size to full physical extent 12.00 MB
Logical volume "data" created
[root@localhost /]# lvdisplay #查看下逻辑卷情况
--- Logical volume ---
LV Name /dev/vg0/data
VG Name vg0
LV UUID qrC9H4-iHWi-Si4m-hN7G-x6Cm-yupr-aXRBVi
LV Write Access read/write
LV Status available
# open 0
LV Size 12.00 MB #为什么是12M呢?我不是输入10M大小的吗?
Current LE 3 就当是个问题考考大家了,
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:2
Couldn't find all physical volumes for volume group VolGroup00.
Couldn't find device with uuid '6T3gUb-fFdj-MMUL-wUTN-qdXG-8iEP-KsWbgb'.
Couldn't find all physical volumes for volume group VolGroup00.
Volume group "VolGroup00" not found
[root@localhost /]# mkfs.ext3 /dev/vg0/data #格式化成ext3格式.
mke2fs 1.35 (28-Feb-2004)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
3072 inodes, 12288 blocks
614 blocks (5.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=12582912
2 block groups
8192 blocks per group, 8192 fragments per group
1536 inodes per group
Superblock backups stored on blocks:
8193
Creating journal (1024 blocks): done
Writing superblocks and filesystem accounting information: done
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@localhost /]# mount /dev/vg0/data /mnt/ #mount到/mnt文件夹
[root@localhost /]# cp /etc/services /mnt/ #拷贝个文件进去试下
[root@localhost /]# ls /mnt/ #看下,里面已经有个services文件了.成功.
lost+found services
[root@localhost /]# lvextend -L +10M /dev/vg0/data #扩展逻辑卷大小
/dev/cdrom: open failed: Read-only file system
Rounding up size to full physical extent 12.00 MB
Extending logical volume data to 24.00 MB
Logical volume data successfully resized