新增磁區並加以格式化

運用fdisk來增修磁碟，然後以mke2fs格式化成ext3磁區！

root@bullock-desktop:~# mke2fs -j -L "backup" /dev/sda2
mke2fs 1.40-WIP (14-Nov-2006)
Filesystem label=backup
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
3933120 inodes, 7865825 blocks
393291 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
241 block groups
32768 blocks per group, 32768 fragments per group
16320 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 26 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
root@bullock-desktop:~#