快来了解一下创建逻辑卷的过程吧

ulppknot

首先分区：
" t3 b9 J' R. Q  V( a+ {6 V# fdisk /dev/sda
3 Z# V( c4 j- C; W8 I' t7 J$ eThe number of cylinders for this disk is set to 60801.
There is nothing wrong with that, but this is larger than 1024,
9 ?- G$ P1 |( K( C5 \7 l1 s1 t7 nand could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Command (m for help):p
Disk /dev/sda: 500.1 GB, 500107862016 bytes
( p1 o7 Y' B% J9 H6 {255 heads, 63 sectors/track, 60801 cylinders
# f1 s8 A( t( ]5 w9 u5 F) m9 JUnits = cylinders of 16065 * 512 = 8225280 bytes
/ w3 }6 \. g% _0 C, o. R   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       12748   102398278+  83  Linux
& O% o4 R' }; |: h  E4 [/dev/sda2           12749       13270     4192965   82  Linux swap / Solaris
Command (m for help): n
- U0 q" I! u  [& jCommand action
+ m- N+ y7 z& B) U6 ?   e   extended
6 I% u5 F: b" X   p   primary partition (1-4)
p
Partition number (1-4): 3
First cylinder (13271-60801, default 13271):
Using default value 13271
Last cylinder or +size or +sizeM or +sizeK (13271-60801, default 60801):
Using default value 60801
Command (m for help): t
, H" Y# \/ f0 Z& ~Partition number (1-4): 3
2 d+ p% ]/ p5 ]Hex code (type L to list codes): 8e
; V' C! {7 `( @4 a1 u! b6 hChanged system type of partition 3 to 8e (Linux LVM)
4 g; k: [* ?: O. a' L+ k$ s8 lCommand (m for help): w
, A1 }9 B  j! h0 c* q% ^The partition table has been altered!
Calling ioctl() to re-read partition table.
1 V) R2 @4 _% s* P执行下面的命令不必重启机器：
# partprobe 这个命令必须记住，老是忘记
  ?' {1 ~' @0 o1 N  X' S3 T创建物理卷：
. O6 [4 x; X, d, _& n# pvcreate /dev/sda3
创建卷组：
$ }% f. Q" V0 m/ q( @, N0 i# vgcreate xenvg /dev/sda3
6 ]/ r- M" @+ b. g创建逻辑卷：
( K' H( }# w! \9 |- d+ m+ j# lvcreate -L 10G -n test xenvg

CCxiaom

了解一下