确定你要格式化的硬盘，我的两块硬盘都是SCSI接口的，可以通过:
border@ubuntu:/dev$ ls sd*
sda sda1 sda2 sda5 sda6 sda7 sdb sdb1
如果是USB设备:
cd /dev
ls hd*
IDE设备是:
cd /dev
ls hd*
查看分区信息:
border@ubuntu:~$ sudo fdisk -l
[sudo] password for border:
Disk /dev/sda: 146.8 GB, 146815733760 bytes
255 heads, 63 sectors/track, 17849 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x980c980c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 383 3076416 b W95 FAT32
/dev/sda2 384 17849 140295645 f W95 Ext'd (LBA)
/dev/sda5 384 2933 20482843+ c W95 FAT32 (LBA)
/dev/sda6 2934 17756 119065716 83 Linux
/dev/sda7 17757 17849 746991 82 Linux swap / Solaris
Disk /dev/sdb: 36.7 GB, 36703918080 bytes
255 heads, 63 sectors/track, 4462 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xa3535cb2
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 4462 35840983+ 7 HPFS/NTFS
确定要格式化的分区为sdb1.
开始格式化:
border@ubuntu:/dev$ sudo fdisk /dev/sdb
The number of cylinders for this disk is set to 4462.
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): m (帮助信息)
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition (删除分区)
l list known partition types
m print this menu
n add a new partition (创建新分区)
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id (转换分区类型)
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
删除旧分区d (delete a partition):
Command (m for help): d
Selected partition 1
创建新分区 n (add a new partition):
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-4462, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-4462, default 4462):
Using default value 4462
转换分区类型 t (change a partition’s system id):
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): l
0 Empty 1e Hidden W95 FAT1 80 Old Minix be Solaris boot
1 FAT12 24 NEC DOS 81 Minix / old Lin bf Solaris
2 XENIX root 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
5 Extended 41 PPC PReP Boot 85 Linux extended c7 Syrinx
6 FAT16 42 SFS 86 NTFS volume set da Non-FS data
7 HPFS/NTFS 4d QNX4.x 87 NTFS volume set db CP/M / CTOS / .
8 AIX 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility
9 AIX bootable 4f QNX4.x 3rd part 8e Linux LVM df BootIt
a OS/2 Boot Manag 50 OnTrack DM 93 Amoeba e1 DOS access
b W95 FAT32 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O
c W95 FAT32 (LBA) 52 CP/M 9f BSD/OS e4 SpeedStor
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs
f W95 Ext'd (LBA) 54 OnTrackDM6 a5 FreeBSD ee EFI GPT
10 OPUS 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/
11 Hidden FAT12 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b
12 Compaq diagnost 5c Priam Edisk a8 Darwin UFS f1 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor a9 NetBSD f4 SpeedStor
16 Hidden FAT16 63 GNU HURD or Sys ab Darwin boot f2 DOS secondary
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fd Linux raid auto
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fe LANstep
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid ff BBT
1c Hidden W95 FAT3 75 PC/IX
Hex code (type L to list codes): 83 (83 为 Linux ext3 格式)
You cannot change a partition into an extended one or vice versa
Delete it first.
保存退出 w (write table to disk and exit):
Command (m for help): w
创建文件系统:
border@ubuntu:~$ sudo mkfs.ext3 /dev/sdb1
单独挂载分区:
如果要挂载到/svn到话，你要先把现在/svn的文件全部（包括隐藏文件）转移到分割好到分区，再编辑/etc/fstab:
/dev/sdb1 /svn ext3 relatime 0 2
最后重启电脑，重启后查看格式和后的分区信息:
border@ubuntu:/bvcomsvn$ sudo fdisk -l
Disk /dev/sda: 146.8 GB, 146815733760 bytes
255 heads, 63 sectors/track, 17849 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x980c980c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 383 3076416 b W95 FAT32
/dev/sda2 384 17849 140295645 f W95 Ext'd (LBA)
/dev/sda5 384 2933 20482843+ c W95 FAT32 (LBA)
/dev/sda6 2934 17756 119065716 83 Linux
/dev/sda7 17757 17849 746991 82 Linux swap / Solaris
Disk /dev/sdb: 36.7 GB, 36703918080 bytes
255 heads, 63 sectors/track, 4462 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xa3535cb2
Device Boot Start End Blocks Id System
/dev/sdb1 1 4462 35840983+ 83 Linux
sdb1 由原来的 HPFS/NTFS 变为现在的 Linux。
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