How to extend hard disk under virtual machine Linux __linux

"Original link": http://blog.csdn.net/tianlesoftware/article/details/5642883

Install the virtual machine space is small, then added 5G space, toss a half-day, hang up. Tidy up a note, spare.

1. Add disk to view disk status

[ROOT@DB1/]# Fdisk-l

disk/dev/sda:10.7 GB, 10737418240 bytes

255 heads, Sectors/track, 1305 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Device Boot Start End Blocks Id System

/DEV/SDA1 * 151 1305 9277537+ Linux

/dev/sda2 1 1204843+ Linux swap

Partition table entries are in-disk order

disk/dev/sdb:5368 MB, 5368709120 bytes

255 heads, Sectors/track, 652 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Device Boot Start End Blocks Id System

From the results of the query, a/DEV/SDB disk

2. use Fdisk to partition the/dev/sdb

[ROOT@DB1/]# Fdisk/dev/sdb

Command (M for help): N

Command Action

E Extended

P primary partition (1-4)

P

Partition number (1-4): 1

The cylinder (1-652, default 1):

Using Default value 1

Last cylinder or +size or +sizem or +sizek (1-652, default 652):

Using Default value 652

Command (M for help): W

The partition table has been altered!

Calling IOCTL () to re-read partition table.

Syncing disks.

Look at the partition again, come out with a/dev/sdb1 area, this 1 is what we specified earlier, if we specify 2, it becomes sdb2.

[ROOT@DB1/]# Fdisk-l

disk/dev/sda:10.7 GB, 10737418240 bytes

255 heads, Sectors/track, 1305 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Device Boot Start End Blocks Id System

/DEV/SDA1 * 151 1305 9277537+ Linux

/dev/sda2 1 1204843+ Linux swap

Partition table entries are in-disk order

disk/dev/sdb:5368 MB, 5368709120 bytes

255 heads, Sectors/track, 652 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Device Boot Start End Blocks Id System

/DEV/SDB1 1 652 5237158+ Linux

[ROOT@DB1/]#

If the/proc/partitions does not see the corresponding partition after it is created, use the Parprobe command to refresh it:

[Root@web1 ~]# Cat/proc/partitions
Major Minor #blocks name


8 0 175825944 SDA
8 1 1020096 sda1
8 2 30716280 Sda2
8 3 8193150 Sda3
[Root@web1 ~]# PARTPROBE/DEV/SDA
[Root@web1 ~]# Cat/proc/partitions
Major Minor #blocks name


8 0 175825944 SDA
8 1 1020096 sda1
8 2 30716280 Sda2
8 3 8193150 Sda3
8 4 135893835 SDA4
[Root@web1 ~]#

3. format/DEV/SDB1 partition

[ROOT@DB1/]# mkfs-t EXT3/DEV/SDB1

MKE2FS 1.35 (28-feb-2004)

FileSystem label=

OS Type:linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

655360 inodes, 1309289 blocks

65464 blocks (5.00%) reserved for the Super user

The Data block=0

Maximum filesystem blocks=1342177280

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

Writing Inode Tables:done

Creating journal (8192 blocks): Done

Writing superblocks and filesystem accounting Information:done

This filesystem'll be automatically checked every mounts or

180 days, whichever comes. Use Tune2fs-c or-i to override.

4. Create the table of contents and hang the/DEV/SDB1 to the directory

[ROOT@DB1/]# ls

Backup dev initrd media opt sbin sys usr

Bin etc Lib Misc proc SELinux tftpboot var

Boot home lost+found mnt root SRV tmp

[ROOT@DB1/]# mkdir/u01

[ROOT@DB1/]# ls

Backup dev initrd media opt sbin sys u01

Bin etc Lib misc proc SELinux tftpboot usr

Boot home lost+found mnt root SRV tmp var

[ROOT@DB1/]# mount/dev/sdb1/u01