擴展后執(zhí)行fdisk -l查看是否成功

[root@localhost??~?]#?fdisk??-?l

Disk??/?dev?/?sda:??16.1??GB,??16106127360??bytes

255??heads,??63??sectors?/?track,??1958??cylinders

Units??=??cylinders?of??16065???*???512???=???8225280??bytes

Device?Boot??????Start?????????End??????Blocks???Id??System

/?dev?/?sda1????*?????????????1?????????????6?????????48163?+????83???Linux

/?dev?/?sda2????????????????7???????????515???????4088542?+????83???Linux

/?dev?/?sda3??????????????516??????????1239???????5815530?????83???Linux

/?dev?/?sda4?????????????1240??????????1305????????530145??????5???Extended

/?dev?/?sda5?????????????1240??????????1305????????530113?+????82???Linux?swap??/??Solaris

可見sda已經(jīng)擴展成為16G，但是沒分配給文件系統(tǒng)

繼續(xù)執(zhí)行fdisk /dev/sda進行新建磁盤

[root@localhost??~?]#?fdisk??/?dev?/?sda

The?number?of?cylinders

for

this??disk

is

set??to??1958?.

There

is??nothing?wrong?with?that,?but

this

is??larger?than??1024?,

and?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):?n

No?free?sectors?available

前面執(zhí)行fdisk -l的時候明明最后才是1305柱面，而且應(yīng)該有1958柱面，為什么說沒有空閑的扇區(qū)。

再看看fdisk -l執(zhí)行結(jié)果，原來是/dev/sda5分配了作為swap分區(qū)，找到原因了就容易解決。

1.關(guān)閉swap分區(qū) # swapoff /dev/sda5

2.刪除sda4和sda5.

[root@localhost??~?]#?fdisk??/?dev?/?sda

The?number?of?cylinders

for

this??disk

is

set??to??1958?.

There

is??nothing?wrong?with?that,?but

this

is??larger?than??1024?,

and?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):?d

Partition?number?(?1?-?5?):??5

Command?(m

for??help):?d

Partition?number?(?1?-?5?):??4

3.建立擴展分區(qū)4，建立分區(qū)sda5，寫入

Command?(m

for??help):?n

Command?action

e???extended

p???primary?partition?(?1?-?4?)

e

Selected?partition??4

First?cylinder?(?1240?-?1958?,

default???1240?):

Using

default??value??1240

Last?cylinder?or??+?size?or??+?sizeM?or??+?sizeK?(?1240?-?1958?,

default???1958?):

Using

default??value??1958

Command?(m

for??help):?n

First?cylinder?(?1240?-?1958?,

default???1240?):

Using

default??value??1240

Last?cylinder?or??+?size?or??+?sizeM?or??+?sizeK?(?1240?-?1958?,

default???1958?):

Using

default??value??1958

Command?(m

for??help):?w

The?partition?table?has?been

文章來自：

1. ??http://blog.csdn.net/season_hangzhou/article/details/36423223

2. ?http://hchmsguo.iteye.com/blog/1226666

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