shell> fdisk /dev/hda

The number of cylinders for this disk is set to 5221.
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

Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
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
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)

Command (m for help): n

Command (m for help): p

Disk /dev/hda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 13 104391 83 Linux
/dev/hda2 14 1305 10377990 8e Linux LVM
/dev/hda3 1306 5221 31455270 8e Linux LVM

Command (m for help): t
Partition number (1-4): 3

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):


partprobe -s 通知OS磁盘分区的变化

[root@vi /]# pvcreate /dev/hda3
Physical volume “/dev/hda3″ successfully created
[root@vi /]# vgextend VolGroup00 /dev/hda3
Volume group “VolGroup00″ successfully extended 划到卷组VolGroup00

[root@vi /]# pvdisplay
— Physical volume —
PV Name /dev/hda2
VG Name VolGroup00
PV Size 9.90 GB / not usable 22.76 MB
Allocatable yes (but full)
PE Size (KByte) 32768
Total PE 316
Free PE 0
Allocated PE 316
PV UUID 75v4Gp-nrcZ-XG4A-lLHB-zAkN-3y3b-NkKMst

— Physical volume —
PV Name /dev/hda3
VG Name VolGroup00
PV Size 30.00 GB / not usable 30.04 MB
Allocatable yes
PE Size (KByte) 32768
Total PE 959
Free PE 959
Allocated PE 0
PV UUID 05T1E6-NGjV-m5jp-t6m9-juaF-7Fud-CyfqL2

lvextend -L +20G /dev/VolGroup00/LogVol00 增加空间

/sbin/resize2fs /dev/VolGroup00/LogVol00 让空间调整生效


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