Centos5给/根分区扩容
<p>终于还是找到了.现在将执行代码贴出来.希望对大家有帮助!</p>
<p>
<span># fdisk /dev/hda3</span></p>
<p>
The number of cylinders for this disk is set to 3916.<br>
There is nothing wrong with that, but this is larger than 1024,<br>
and could in certain setups cause problems with:<br>
1) software that runs at boot time (e.g., old versions of LILO)<br>
2) booting and partitioning software from other OSs<br>
(e.g., DOS FDISK, OS/2 FDISK)<br><br><span>Command (m for help): p</span></p>
<p>
Disk /dev/hda4: 32.2 GB, 32212254720 bytes<br>
255 heads, 63 sectors/track, 3916 cylinders<br>
Units = cylinders of 16065 * 512 = 8225280 bytes<br>
Disk identifier: 0×000bc363</p>
<p>
Device Boot Start End Blocks Id System<br>
/dev/hda1 * 1 25 200781 83 Linux<br>
/dev/hda2 26 1958 15526822+ 8e Linux LVM<br>
/dev/hda3 1959 2610 5237190 8e Linux LVM</p>
<p>
<span>Command (m for help): n</span><br>
Command action<br>
e extended<br>
p primary partition (1-4)<br><br>
Selected partition 4<br>
First cylinder (2611-3916, default 2611):<br>
Using default value 2611<br>
Last cylinder or +size or +sizeM or +sizeK (2611-3916, default 3916):<br>
Using default value 3916</p>
<p>
<span>Command (m for help): t</span><br><span>Partition number (1-4): 4</span><br><span>Hex code (type L to list codes): 8e</span><br>
Changed system type of partition 4 to 8e (Linux LVM)</p>
<p>
<span>Command (m for help): p</span></p>
<p>
Disk /dev/hda: 32.2 GB, 32212254720 bytes<br>
255 heads, 63 sectors/track, 3916 cylinders<br>
Units = cylinders of 16065 * 512 = 8225280 bytes<br>
Disk identifier: 0×000bc363</p>
<p>
Device Boot Start End Blocks Id System<br>
/dev/hda1 * 1 25 200781 83 Linux<br>
/dev/hda2 26 1958 15526822+ 8e Linux LVM<br>
/dev/hda3 1959 2610 5237190 8e Linux LVM<br>
/dev/hda4 2611 3916 10490445 8e Linux LVM</p>
<p>
<span>Command (m for help): w</span><br>
The partition table has been altered!</p>
<p>
Calling ioctl() to re-read partition table.</p>
<p>
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.<br>
The kernel still uses the old table.<br>
The new table will be used at the next reboot.<br>
Syncing disks.</p>
<p>
(注：建议重启一下CentOS系统)</p>
<p>
<span># pvcreate /dev/hda3</span><br>
Physical volume “/dev/hda4″ successfully created<br><span># vgextend VolGroup00 /dev/hda3</span><br>
Volume group “VolGroup00″ successfully extended<br><span># lvextend -l +100%FREE /dev/VolGroup00/LogVol00</span><br>
Extending logical volume LogVol00 to 28.25 GB<br>
Logical volume LogVol00 successfully resized<br>
# lvresize -l +100%FREE /dev/VolGroup00/LogVol00<br>
New size (904 extents) matches existing size (904 extents)<br>
lvresize: Resize a logical volume</p>
<p>
lvresize<br>
[-A|--autobackup y|n]<br>
[--alloc AllocationPolicy]<br>
[-d|--debug]<br>
[-h|--help]<br>
[-i|--stripes Stripes [-I|--stripesize StripeSize]]<br>
{-l|–extents [+|-]LogicalExtentsNumber[%{VG|LV|FREE}] |<br>
-L|–size [+|-]LogicalVolumeSize}<br>
[-n|--nofsck]<br>
[-r|--resizefs]<br>
[-t|--test]<br>
[--type VolumeType]<br>
[-v|--verbose]<br>
[--version]<br>
LogicalVolume [ PhysicalVolumePath... ]</p>
<p>
<span># resize2fs /dev/VolGroup00/LogVol00</span><br>
resize2fs 1.40.2 (12-Jul-2007)<br>
Filesystem at /dev/VolGroup00/LogVol00 is mounted on /; on-line resizing required<br>
old desc_blocks = 2, new_desc_blocks = 2<br>
Performing an on-line resize of /dev/VolGroup00/LogVol00 to 7405568 (4k) blocks.<br>
The filesystem on /dev/VolGroup00/LogVol00 is now 7405568 blocks long.</p>
頁:
[1]