Linux 使用fdisk添加新分区

[root@DB-ONE-SERVER~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/VolGroup00-sda3

 30G 2.4G 26G 9% /

/dev/sda1 99M 23M 71M 25% /boot

tmpfs 4.0G 0 4.0G 0% /dev/shm

You have new mail in /var/spool/mail/root

Disk /dev/sda: 42.9 GB, 42949672960 bytes

255 heads, 63 sectors/track, 5221 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sda1 * 1 13 104391 83 Linux

/dev/sda2 14 5221 41833260 8e Linux LVM

Disk /dev/sdb: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesnt contain a valid partition table

Disk /dev/dm-0: 32.3 GB, 32346472448 bytes

255 heads, 63 sectors/track, 3932 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-0 doesnt contain a valid partition table

Disk /dev/dm-1: 10.4 GB, 10468982784 bytes

255 heads, 63 sectors/track, 1272 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-1 doesnt contain a valid partition table

[root@DB-ONE-SERVER~]# fdisk /dev/sdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel. Changes will remain in memory only,

until you decide to write them. After that, of course, the previous

content wont be recoverable.

The number of cylinders for this disk is set to 2610.

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)

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): m

Command action

 a toggle a bootable flag

 b edit bsd disklabel

 c toggle the dos compatibility flag

 d delete a partition

 l list known partition types

 m print this menu

 n add a new partition

 o create a new empty DOS partition table

 p print the partition table

 q quit without saving changes

 s create a new empty Sun disklabel

 t change a partitions system id

 u change display/entry units

 v verify the partition table

 w write table to disk and exit

 x extra functionality (experts only)

Command (m for help): p

Disk /dev/sdb: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

Command (m for help): n

Command action

 e extended

 p primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-2610, default 1): 1

Last cylinder or +size or +sizeM or +sizeK (1-2610, default 2610): 

Using default value 2610

Command (m for help): p

Disk /dev/sdb: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sdb1 1 2610 20964793+ 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@DB-ONE-SERVER~]# fdisk -l /dev/sdb

Disk /dev/sdb: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sdb1 1 2610 20964793+ 83 Linux

[root@DB-ONE-SERVER~]# mkfs.ext4 /dev/sdb1

mke4fs 1.41.12 (17-May-2010)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

1310720 inodes, 5241198 blocks

262059 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=4294967296

160 block groups

32768 blocks per group, 32768 fragments per group

8192 inodes per group

Superblock backups stored on blocks: 

 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 

 4096000

Writing inode tables: done 

Creating journal (32768 blocks): done

Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 36 mounts or

180 days, whichever comes first. Use tune4fs -c or -i to override.

/dev/VolGroup00/sda3 / ext3 defaults 1 1

/dev/sdb1 /u02 ext4 defaults 1 2

LABEL=/boot /boot ext3 defaults 1 2

tmpfs /dev/shm tmpfs defaults 0 0

devpts /dev/pts devpts gid=5,mode=620 0 0

sysfs /sys sysfs defaults 0 0

proc /proc proc defaults 0 0

/dev/VolGroup00/sda4 swap swap defaults 0 0

~

[root@DB-ONE-SERVER~]# cd /

[root@DB-ONE-SERVER/]# mkdir u02

[root@DB-ONE-SERVER/]# mount -a

[root@DB-ONE-SERVER/]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/VolGroup00-sda3

 30G 2.4G 26G 9% /

/dev/sda1 99M 23M 71M 25% /boot

tmpfs 4.0G 0 4.0G 0% /dev/shm

/dev/sdb1 20G 172M 19G 1% /u02

[root@DB-ONE-SERVER/]# 

 

下面来看看虚拟上Linux的添加新的逻辑分区的步骤,其实操作是一样的，只是顺带介绍一下虚拟机如何添加硬盘

Disk /dev/sda: 584.6 GB, 584646328320 bytes

255 heads, 63 sectors/track, 71079 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sda1 * 1 19441 156151808 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 19441 44937 204796672 83 Linux

Partition 2 does not end on cylinder boundary.

/dev/sda3 44937 57685 102398336 83 Linux

Partition 3 does not end on cylinder boundary.

/dev/sda4 57685 71080 107595584 5 Extended

Partition 4 does not end on cylinder boundary.

/dev/sda5 57685 70433 102398336 83 Linux

/dev/sda6 70433 70949 4144768 82 Linux swap

/dev/sda7 70949 71080 1052288 83 Linux

Disk /dev/sdb: 146.1 GB, 146156158976 bytes

2 heads, 24 sectors/track, 5947109 cylinders

Units = cylinders of 48 * 512 = 24576 bytes

 Device Boot Start End Blocks Id System

/dev/sdb1 3 5947064 142729472 83 Linux

[root@oracle_server ~]# 

Disk /dev/sda: 584.6 GB, 584646328320 bytes

255 heads, 63 sectors/track, 71079 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sda1 * 1 19441 156151808 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 19441 44937 204796672 83 Linux

Partition 2 does not end on cylinder boundary.

/dev/sda3 44937 57685 102398336 83 Linux

Partition 3 does not end on cylinder boundary.

/dev/sda4 57685 71080 107595584 5 Extended

Partition 4 does not end on cylinder boundary.

/dev/sda5 57685 70433 102398336 83 Linux

/dev/sda6 70433 70949 4144768 82 Linux swap

/dev/sda7 70949 71080 1052288 83 Linux

Disk /dev/sdb: 146.1 GB, 146156158976 bytes

2 heads, 24 sectors/track, 5947109 cylinders

Units = cylinders of 48 * 512 = 24576 bytes

 Device Boot Start End Blocks Id System

/dev/sdb1 3 5947064 142729472 83 Linux

[root@oracle_server ~]# echo "- - -" /sys/class/scsi_host/host0/scan

[root@oracle_server ~]# fdisk -l

Disk /dev/sda: 584.6 GB, 584646328320 bytes

255 heads, 63 sectors/track, 71079 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

/dev/sda1 * 1 19441 156151808 83 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 19441 44937 204796672 83 Linux

Partition 2 does not end on cylinder boundary.

/dev/sda3 44937 57685 102398336 83 Linux

Partition 3 does not end on cylinder boundary.

/dev/sda4 57685 71080 107595584 5 Extended

Partition 4 does not end on cylinder boundary.

/dev/sda5 57685 70433 102398336 83 Linux

/dev/sda6 70433 70949 4144768 82 Linux swap

/dev/sda7 70949 71080 1052288 83 Linux

Disk /dev/sdb: 146.1 GB, 146156158976 bytes

2 heads, 24 sectors/track, 5947109 cylinders

Units = cylinders of 48 * 512 = 24576 bytes

 Device Boot Start End Blocks Id System

/dev/sdb1 3 5947064 142729472 83 Linux

Disk /dev/sdc: 107.3 GB, 107374182400 bytes

255 heads, 63 sectors/track, 13054 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdc doesnt contain a valid partition table

[root@oracle_server ~]# fdisk /dev/sdc

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel. Changes will remain in memory only,

until you decide to write them. After that, of course, the previous

content wont be recoverable.

The number of cylinders for this disk is set to 13054.

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)

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

Command (m for help): m

Command action

 a toggle a bootable flag

 b edit bsd disklabel

 c toggle the dos compatibility flag

 d delete a partition

 l list known partition types

 m print this menu

 n add a new partition

 o create a new empty DOS partition table

 p print the partition table

 q quit without saving changes

 s create a new empty Sun disklabel

 t change a partitions system id

 u change display/entry units

 v verify the partition table

 w write table to disk and exit

 x extra functionality (experts only)

Command (m for help): p

Disk /dev/sdc: 107.3 GB, 107374182400 bytes

255 heads, 63 sectors/track, 13054 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

 Device Boot Start End Blocks Id System

Command (m for help): n

Command action

 e extended

 p primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-13054, default 1): 

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-13054, default 13054): 

Using default value 13054

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@oracle_server u04]# mkfs.ext3 /dev/sdc1

mke2fs 1.35 (28-Feb-2004)

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

13107200 inodes, 26214055 blocks

1310702 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=29360128

800 block groups

32768 blocks per group, 32768 fragments per group

16384 inodes per group

Superblock backups stored on blocks: 

 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 

 4096000, 7962624, 11239424, 20480000, 23887872

Writing inode tables: done 

Creating journal (8192 blocks): done

Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 32 mounts or

180 days, whichever comes first. Use tune2fs -c or -i to override.

[root@oracle_server ~]$ more /etc/fstab

# This file is edited by fstab-sync - see man fstab-sync for details

LABEL=/1 / ext3 defaults 1 1

none /dev/pts devpts gid=5,mode=620 0 0

none /dev/shm tmpfs defaults 0 0

none /proc proc defaults 0 0

none /sys sysfs defaults 0 0

LABEL=/tmp /tmp ext3 defaults 1 2

LABEL=/u01 /u01 ext3 defaults 1 2

LABEL=/u02 /u02 ext3 defaults 1 2

LABEL=/u03 /u03 ext3 defaults 1 2

LABEL=SWAP-sda6 swap swap defaults 0 0

/dev/sdb1 /u03/flash_recovery_area ext3 defaults 1 2

/dev/hda /media/cdrecorder auto pamconsole,exec,noauto,managed 0 0

/dev/fd0 /media/floppy auto pamconsole,exec,noauto,managed 0 0

vi

[oracle@get-orasvr02 ~]$ vi /etc/fstab

# This file is edited by fstab-sync - see man fstab-sync for details

LABEL=/1 / ext3 defaults 1 1

none /dev/pts devpts gid=5,mode=620 0 0

none /dev/shm tmpfs defaults 0 0

none /proc proc defaults 0 0

none /sys sysfs defaults 0 0

LABEL=/tmp /tmp ext3 defaults 1 2

LABEL=/u01 /u01 ext3 defaults 1 2

LABEL=/u02 /u02 ext3 defaults 1 2

LABEL=/u03 /u03 ext3 defaults 1 2

LABEL=SWAP-sda6 swap swap defaults 0 0

/dev/sdb1 /u03/flash_recovery_area ext3 defaults 1 2

/dev/sdc1 /u04 ext3 defaults 1 2

/dev/hda /media/cdrecorder auto pamconsole,exec,noauto,managed 0 0

/dev/fd0 /media/floppy auto pamconsole,exec,noauto,managed 0 0

[root@oracle_server ~]# mkdir /u04

[root@oracle_server ~]# mount -a

[root@oracle_server ~]$ df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda1 147G 86G 54G 62% /

/dev/sda7 1012M 34M 927M 4% /tmp

/dev/sda5 97G 73G 19G 80% /u01

/dev/sda3 97G 84G 7.6G 92% /u02

/dev/sda2 193G 133G 51G 73% /u03

/dev/sdb1 134G 74G 54G 59% /u03/flash_recovery_area

/dev/sdc1 99G 93M 94G 1% /u04

10.14 Linux fdisk命令详解：给硬盘分区 我们在安装操作系统的过程中已经对系统硬盘进行了分区，但如果新添加了一块硬盘，想要正常使用，难道需要重新安装操作系统才可以分区吗？
潇湘隐者 网名潇湘隐者/潇湘剑客、英文名Kerry，兴趣广泛，广泛涉猎，个性随意，不善言辞。执意做一名会写代码的DBA，混迹于IT行业