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Centos5給/根分區擴容

2019-11-02 16:19:53
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[root@localhost ~]# fdisk /dev/hda3

The number of cylinders for this disk is set to 3916.

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): p

Disk /dev/hda4: 32.2 GB, 32212254720 bytes

255 heads, 63 sectors/track, 3916 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0×000bc363

Device Boot Start End Blocks Id System

/dev/hda1 * 1 25 200781 83 Linux

/dev/hda2 26 1958 15526822+ 8e Linux LVM

/dev/hda3 1959 2610 5237190 8e Linux LVM

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Selected partition 4

First cylinder (2611-3916, default 2611):

Using default value 2611

Last cylinder or +size or +sizeM or +sizeK (2611-3916, default 3916):

Using default value 3916

Command (m for help): t

Partition number (1-4): 4

Hex code (type L to list codes): 8e

Changed system type of partition 4 to 8e (Linux LVM)

Command (m for help): p

Disk /dev/hda: 32.2 GB, 32212254720 bytes

255 heads, 63 sectors/track, 3916 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0×000bc363

Device Boot Start End Blocks Id System

/dev/hda1 * 1 25 200781 83 Linux

/dev/hda2 26 1958 15526822+ 8e Linux LVM

/dev/hda3 1959 2610 5237190 8e Linux LVM

/dev/hda4 2611 3916 10490445 8e Linux LVM

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.

Syncing disks.

(注：建議重啟一下CentOS系統)

[root@localhost ~]# pvcreate /dev/hda3

Physical volume “/dev/hda4″ successfully created

[root@localhost ~]# vgextend VolGroup00 /dev/hda3

Volume group “VolGroup00″ successfully extended

[root@localhost ~]# lvextend -l +100%FREE /dev/VolGroup00/LogVol00

Extending logical volume LogVol00 to 28.25 GB

Logical volume LogVol00 successfully resized

[root@localhost ~]# lvresize -l +100%FREE /dev/VolGroup00/LogVol00

New size (904 extents) matches existing size (904 extents)

lvresize: Resize a logical volume

lvresize

[-A|--autobackup y|n]

[--alloc AllocationPolicy]

[-d|--debug]

[-h|--help]

[-i|--stripes Stripes [-I|--stripesize StripeSize]]

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