1.首先创建LVM格式的分区,在此我们用fdisk命令。
suselinux:~ # uname -a
Linux suselinux 2.6.5-7.97-default #1 Fri Jul 2 14:21:59 UTC 2004 i686 i686 i386 GNU/Linux
suselinux:~ # fdisk -l
Disk /dev/hda: 10.4 GB, 10485522432 bytes
16 heads, 63 sectors/track, 20317 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 10403 5243080+ 83 Linux
/dev/hda2 10404 12484 1048824 82 Linux swap
suselinux:~ # fdisk /dev/hda
The number of cylinders for this disk is set to 20317.
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): n
Command action
e extended
p primary partition (1-4)
e
Partition number (1-4): 3
First cylinder (12485-20317, default 12485):
Using default value 12485
Last cylinder or +size or +sizeM or +sizeK (12485-20317, default 20317):
Using default value 20317
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l
First cylinder (12485-20317, default 12485):
Using default value 12485
Last cylinder or +size or +sizeM or +sizeK (12485-20317, default 20317): +100M
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l
First cylinder (12680-20317, default 12680):
Using default value 12680
Last cylinder or +size or +sizeM or +sizeK (12680-20317, default 20317): +200M
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l
First cylinder (13069-20317, default 13069):
Using default value 13069
Last cylinder or +size or +sizeM or +sizeK (13069-20317, default 20317): +300M
Command (m for help): t
Partition number (1-7): 5
Hex code (type L to list codes): 8e
Changed system type of partition 5 to 8e (Linux LVM)
Command (m for help): t
Partition number (1-7): 6
Hex code (type L to list codes): 8e
Changed system type of partition 6 to 8e (Linux LVM)
Command (m for help): t
Partition number (1-7): 7
Hex code (type L to list codes): 8e
Changed system type of partition 7 to 8e (Linux LVM)
Command (m for help): p
Disk /dev/hda: 10.4 GB, 10485522432 bytes
16 heads, 63 sectors/track, 20317 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 10403 5243080+ 83 Linux
/dev/hda2 10404 12484 1048824 82 Linux swap
/dev/hda3 12485 20317 3947832 5 Extended
/dev/hda5 12485 12679 98248+ 8e Linux LVM
/dev/hda6 12680 13068 196024+ 8e Linux LVM
/dev/hda7 13069 13650 293296+ 8e Linux LVM
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.
suselinux:~ # shutdown -fr now
Broadcast message from root (pts/0) (Tue Jul 1 23:35:41 2008):
The system is going down for reboot NOW!
2.创建PV
suselinux:~ # fdisk -l
Disk /dev/hda: 10.4 GB, 10485522432 bytes
16 heads, 63 sectors/track, 20317 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 10403 5243080+ 83 Linux
/dev/hda2 10404 12484 1048824 82 Linux swap
/dev/hda3 12485 13647 586152 5 Extended
/dev/hda5 12485 12678 97744+ 8e Linux LVM
/dev/hda6 12679 13066 195520+ 8e Linux LVM
/dev/hda7 13067 13647 292792+ 8e Linux LVM
suselinux:~ # pvcreate /dev/hda5
No physical volume label read from /dev/hda5
Physical volume "/dev/hda5" successfully created
suselinux:~ # pvcreate /dev/hda6
No physical volume label read from /dev/hda6
Physical volume "/dev/hda6" successfully created
suselinux:~ # pvcreate /dev/hda7
No physical volume label read from /dev/hda7
Physical volume "/dev/hda7" successfully created
suselinux:~ # pvscan
PV /dev/hda5 lvm2 [95.76 MB]
PV /dev/hda6 lvm2 [191.24 MB]
PV /dev/hda7 lvm2 [286.23 MB]
Total: 3 [573.24 MB] / in use: 0 [0 ] / in no VG: 3 [573.24 MB]
3.创建VG
suselinux:~ # vgcreate testvg /dev/hda5 /dev/hda6
Volume group "testvg" successfully created
suselinux:~ # vgscan
Reading all physical volumes. This may take a while...
Found volume group "testvg" using metadata type lvm2
suselinux:~ # vgdisplay -v
Finding all volume groups
Finding volume group "testvg"
--- Volume group ---
VG Name testvg
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 255
Cur LV 0
Open LV 0
Max PV 255
Cur PV 2
Act PV 2
VG Size 280.00 MB
PE Size 4.00 MB
Total PE 70
Alloc PE / Size 0 / 0
Free PE / Size 70 / 280.00 MB
VG UUID uQAOsM-QLEA-Eezz-tMr0-1WRY-kQ3i-WT0YKp
--- Physical volumes ---
PV Name /dev/hda5
PV UUID FThAaT-LgGU-R8l4-awX8-LUJe-IYTZ-C5R896
PV Status allocatable
Total PE / Free PE 23 / 23
PV Name /dev/hda6
PV UUID 1Y7jV1-FyP7-h1vs-qkWQ-Kx5X-8u9Q-3YBZbo
PV Status allocatable
Total PE / Free PE 47 / 47
4.创建LV
suselinux:~ # lvcreate -l 23 -n testlv1 testvg /dev/hda5
Logical volume "testlv1" created
suselinux:~ # lvcreate -L 188M testvg /dev/hda6
Logical volume "lvol0" created
suselinux:~ # lvdisplay
--- Logical volume ---
LV Name /dev/testvg/testlv1
VG Name testvg
LV UUID VLle39-nwZn-HnvM-n1Gh-SS7b-cv8R-52h5vC
LV Write Access read/write
LV Status available
# open 0
LV Size 92.00 MB
Current LE 23
Segments 1
Allocation next free (default)
Read ahead sectors 0
Block device 253:0
--- Logical volume ---
LV Name /dev/testvg/lvol0
VG Name testvg
LV UUID MuuTIA-aDQ2-CdGA-s6ko-jAr9-ms73-7zjoNB
LV Write Access read/write
LV Status available
# open 0
LV Size 188.00 MB
Current LE 47
Segments 1
Allocation next free (default)
Read ahead sectors 0
Block device 253:1
5.创建文件系统
suselinux:~ # mkfs -t ext3 /dev/testvg/testlv1
mke2fs 1.34 (25-Jul-2003)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
23616 inodes, 94208 blocks
4710 blocks (5.00%) reserved for the super user
First data block=1
12 block groups
8192 blocks per group, 8192 fragments per group
1968 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 27 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
suselinux:~ # mkreiserfs -l fs2 /dev/testvg/lvol0
mkreiserfs 3.6.13 (2003 )
A pair of credits:
Vladimir Demidov wrote the parser for sys_reiser4(), the V3 alpha port, part of
the V3 journal relocation code, and helped Hans keep the business side of
things running.
Oleg Drokin was the debugger for V3 during most of the time that V4 was under
development, and was quite skilled and fast at it. He wrote the large write
optimization of V3.
Guessing about desired format.. Kernel 2.6.5-7.97-default is running.
Format 3.6 with standard journal
Count of blocks on the device: 48128
Number of blocks consumed by mkreiserfs formatting process: 8213
Blocksize: 4096
Hash function used to sort names: "r5"
Journal Size 8193 blocks (first block 18)
Journal Max transaction length 1024
inode generation number: 0
UUID: c3f79adc-0cc8-42c2-92ee-9141c1ac7177
LABEL: fs2
ATTENTION: YOU SHOULD REBOOT AFTER FDISK!
ALL DATA WILL BE LOST ON '/dev/testvg/lvol0'!
Continue (y/n):y
Initializing journal - 0%....20%....40%....60%....80%....100%
Syncing..ok
ReiserFS is successfully created on /dev/testvg/lvol0.
suselinux:~ # mkdir /fs1 /fs2
mkdir: cannot create directory `/fs1': File exists
mkdir: cannot create directory `/fs2': File exists
suselinux:~ # mkdir /fs1
mkdir: cannot create directory `/fs1': File exists
suselinux:~ # mount /dev/testvg/testlv1 /fs1
suselinux:~ # mount /dev/testvg/lvol0 /fs2
suselinux:~ # mount
/dev/hda1 on / type reiserfs (rw,acl,user_xattr)
proc on /proc type proc (rw)
tmpfs on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/hdc on /media/dvd type subfs (ro,nosuid,nodev,fs=cdfss,procuid,iocharset=utf8)
/dev/fd0 on /media/floppy type subfs (rw,nosuid,nodev,sync,fs=floppyfss,procuid)
usbfs on /proc/bus/usb type usbfs (rw)
/dev/mapper/testvg-testlv1 on /fs1 type ext3 (rw)
/dev/mapper/testvg-lvol0 on /fs2 type reiserfs (rw)
suselinux:~ # df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/hda1 reiserfs 5.1G 810M 4.3G 16% /
tmpfs tmpfs 253M 12K 253M 1% /dev/shm
/dev/mapper/testvg-testlv1
ext3 90M 4.1M 81M 5% /fs1
/dev/mapper/testvg-lvol0
reiserfs 188M 33M 156M 18% /fs2
suselinux:~ #
