Scientific Linux 6
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Add Hard Drive
2011/04/17
  This is an example to create a partition when you add a new hard drive.

[root@dlp ~]#
fdisk /dev/sdb
# enter operation mode for partitions


WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
  switch off the mode (command 'c') and change display units to

  sectors (command 'u').


Command (m for help):
p
# show partition table


Disk /dev/sdb: 320.1 GB, 320071851520 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c881d

  Device Boot
Start
End
Blocks
Id
System

 
# none

Command (m for help):
n
# create a partition

Command action
  e    extended
  p    primary partition (1-4)
p
# primary

Partition number (1-4):
1
# specify partition number

First cylinder (1-1-38913, default 1):
# starting cylinder

Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-38913, default 38913): 
# end cylinder

Using default value 38913

Command (m for help):
p
# show partition table


Disk /dev/sdb: 320.1 GB, 320071851520 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c881d

  Device Boot
Start
End
Blocks
Id
System

  /dev/sdb1
1
38913
312568641
83
Linux  
# created


Command (m for help):
t
# change type

Selected partition 1
Hex code (type L to list codes):
L
# show list


0 Empty
24 NEC DOS
81 Minix / old Lin
bf Solaris

1 FAT12
39 Plan 9
82 Linux swap / So
c1 DRDOS/sec (FAT-

2 XENIX root
3c PartitionMagic
83 Linux
c4 DRDOS/sec (FAT-

3 XENIX usr
40 Venix 80286
84 OS/2 hidden C:
c6 DRDOS/sec (FAT-

4 FAT16 <32M
41 PPC PReP Boot
85 Linux extended
c7 Syrinx

5 Extended
42 SFS
86 NTFS volume set
da Non-FS data

6 FAT16
4d QNX4.x
87 NTFS volume set
db CP/M / CTOS / .

7 HPFS/NTFS
4e QNX4.x 2nd part
88 Linux plaintext
de Dell Utility

8 AIX
4f QNX4.x 3rd part
8e Linux LVM
df BootIt

9 AIX bootable
50 OnTrack DM
93 Amoeba
e1 DOS access

a OS/2 Boot Manag
51 OnTrack DM6 Aux
94 Amoeba BBT
e3 DOS R/O

b W95 FAT32
52 CP/M
9f BSD/OS
e4 SpeedStor

c W95 FAT32 (LBA)
53 OnTrack DM6 Aux
a0 IBM Thinkpad hi
eb BeOS fs

e W95 FAT16 (LBA)
54 OnTrackDM6
a5 FreeBSD
ee GPT

f W95 Ext'd (LBA)
55 EZ-Drive
a6 OpenBSD
ef EFI (FAT-12/16/

10 OPUS
56 Golden Bow
a7 NeXTSTEP
f0 Linux/PA-RISC b

11 Hidden FAT12
5c Priam Edisk
a8 Darwin UFS
f1 SpeedStor

12 Compaq diagnost
61 SpeedStor
a9 NetBSD
f4 SpeedStor

14 Hidden FAT16 <3
63 GNU HURD or Sys
ab Darwin boot
f2 DOS secondary

16 Hidden FAT16
64 Novell Netware
af HFS / HFS+
fb VMware VMFS

17 Hidden HPFS/NTF
65 Novell Netware
b7 BSDI fs
fc VMware VMKCORE

18 AST SmartSleep
70 DiskSecure Mult
b8 BSDI swap
fd Linux raid auto

1b Hidden W95 FAT3
75 PC/IX
bb Boot Wizard hid
fe LANstep

1c Hidden W95 FAT3
80 Old Minix
be Solaris boot
ff BBT

1e Hidden W95 FAT1

Hex code (type L to list codes):
8e
 
# specify Linux LVM

Changed system type of partition 1 to 8e (Linux LVM)

Command (m for help):
p
# show partition table


Disk /dev/sdb: 320.1 GB, 320071851520 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c881d

  Device Boot
Start
End
Blocks
Id
System

  /dev/sdb1
1
38913
312568641
8e
Linux LVM  
# changed


Command (m for help):
w
# save and quit

The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@dlp ~]#
sfdisk -l /dev/sdb
# show status


Disk /dev/sdb: 38913 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device
  Boot
Start
End
#cyls
#blocks
Id
System

/dev/sdb1
0+
20022
38913-
312568641
8e
Linux LVM  
# created

/dev/sdb2
0
-
0
0
0
Empty

/dev/sdb3
0
-
0
0
0
Empty

/dev/sdb4
0
-
0
0
0
Empty

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