Expand Linux capacity by using virtual machines

Expand the Linux capacity of virtual machines-general Linux technology-Linux technology and application information. The following is a detailed description. View the Added Disk ls under cd/dev? L hd * (hdb and hdc are generally added)
Disk Space df? K
Partition A New Hard Disk:
Fdisk/dev/hdb
Next step
Command (m for help): n
Command action
E extended
P primary partition (1-4)
P
Partition number (1-4): 1
First cylinder (1-10402, default 1): 1
Last cylinder or + size or + sizeM or + sizeK (1-10402, default 10402): 10402
Command (m for help): p
Disk/dev/hdb: 5368 MB, 5368709120 bytes
16 heads, 63 sectors/track, 10402 cylinders
Units = cylinders of 1008*512 = 516096 bytes
Device Boot Start End Blocks Id System
/Dev/hdb4 1 10402 5242576 + 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl () to re-read partition table.
Syncing disks.
Check that hdb1 is added to cd/dev and an oracle directory is added.
Next step: mke2fs/dev/hdb4
Next step: mount/dev/hdb4/home/oracle
Next step: edit the/etc/fstab file
Add a statement:/dev/hdb1/home/oracle ext2 defaults 1 2