Partedによるパーティション作成＋LVM作成＋ファイルシステム作成＋マウント処理
インストール時に使い切っていなかったディスク領域にpartedコマンドでパーティション＋LVMを作成し、ext4でフォーマットを実施。
環境:CentOS 6.5
パーティション作成 LVM作成 ファイルシステム作成 マウント処理
■パーティション作成
[root@CentOS ~]# parted /dev/sda
GNU Parted 2.1
/dev/sda を使用
GNU Parted へようこそ！ コマンド一覧を見るには 'help' と入力してください。
(parted) print
モデル: ATA WDC WD5000AAKX-0 (scsi)
ディスク /dev/sda: 500GB
セクタサイズ (論理/物理): 512B/512B
パーティションテーブル: gpt
番号 開始 終了 サイズ ファイルシステム 名前 フラグ
1 1049kB 211MB 210MB ext4 boot
2 211MB 108GB 107GB lvm
(parted) unit MB
(parted) print
モデル: ATA WDC WD5000AAKX-0 (scsi)
ディスク /dev/sda: 500108MB
セクタサイズ (論理/物理): 512B/512B
パーティションテーブル: gpt
番号 開始 終了 サイズ ファイルシステム 名前 フラグ
1 1.05MB 211MB 210MB ext4 boot
2 211MB 107585MB 107374MB lvm
(parted) mkpart
パーティションの名前? []?
ファイルシステムの種類? [ext2]?
開始? 107585
終了? 500108
警告: WARNING: the kernel failed to re-read the partition table on /dev/sda (デバイスもしくはリソースがビジー状態です). As a result, it may not reflect all
of your changes until after reboot.
(parted) print
モデル: ATA WDC WD5000AAKX-0 (scsi)
ディスク /dev/sda: 500108MB
セクタサイズ (論理/物理): 512B/512B
パーティションテーブル: gpt
番号 開始 終了 サイズ ファイルシステム 名前 フラグ
1 1.05MB 211MB 210MB ext4 boot
2 211MB 107585MB 107374MB lvm
3 107585MB 500108MB 392523MB
(parted) set
パーティション番号? 3
反転するフラグ? lvm
新しい状態? [on]/off? on
警告: WARNING: the kernel failed to re-read the partition table on /dev/sda (デバイスもしくはリソースがビジー状態です). As a result, it may not reflect all
of your changes until after reboot.
(parted) print
モデル: ATA WDC WD5000AAKX-0 (scsi)
ディスク /dev/sda: 500108MB
セクタサイズ (論理/物理): 512B/512B
パーティションテーブル: gpt
番号 開始 終了 サイズ ファイルシステム 名前 フラグ
1 1.05MB 211MB 210MB ext4 boot
2 211MB 107585MB 107374MB lvm
3 107585MB 500108MB 392523MB lvm
(parted) quit
■LVM作成
【PVの作成】
[root@CentOS ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name vg_centos
PV Size 100.00 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 25599
Free PE 0
Allocated PE 25599
PV UUID djfDDx-6Rpo-4X5d-5MeC-YWn0-yONI-Jy8QlI
"/dev/sda3" is a new physical volume of "365.57 GiB"
--- NEW Physical volume ---
PV Name /dev/sda3
VG Name
PV Size 365.57 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID AjNZRX-mMEs-QXkR-2VH8-kRFA-4caI-b1cky6
[root@CentOS ~]# pvcreate /dev/sda3
Physical volume "/dev/sda3" successfully created
[root@CentOS ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name vg_centos
PV Size 100.00 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 25599
Free PE 0
Allocated PE 25599
PV UUID djfDDx-6Rpo-4X5d-5MeC-YWn0-yONI-Jy8QlI
"/dev/sda3" is a new physical volume of "365.57 GiB"
--- NEW Physical volume ---
PV Name /dev/sda3
VG Name
PV Size 365.57 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID 3u11TK-uRB6-j8oe-i77M-JsKj-Jvas-kzJKpN
【VGの作成】
[root@CentOS ~]# vgdisplay
--- Volume group ---
VG Name vg_centos
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 100.00 GiB
PE Size 4.00 MiB
Total PE 25599
Alloc PE / Size 25599 / 100.00 GiB
Free PE / Size 0 / 0
VG UUID jS4d8e-1Tax-ulu0-41qT-DrlL-hONN-XcpoMh
[root@CentOS ~]# vgcreate vg_virtualbox /dev/sda3
Volume group "vg_virtualbox" successfully created
[root@CentOS ~]# vgdisplay
--- Volume group ---
VG Name vg_virtualbox
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 365.56 GiB
PE Size 4.00 MiB
Total PE 93584
Alloc PE / Size 0 / 0
Free PE / Size 93584 / 365.56 GiB
VG UUID A0o3SZ-ziMe-targ-Re2J-F6Ax-jkpb-xnVBqQ
--- Volume group ---
VG Name vg_centos
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 100.00 GiB
PE Size 4.00 MiB
Total PE 25599
Alloc PE / Size 25599 / 100.00 GiB
Free PE / Size 0 / 0
VG UUID jS4d8e-1Tax-ulu0-41qT-DrlL-hONN-XcpoMh
【LVの作成】 現状で必要な容量のみ作成することにし、他のLVを追加するかそのまま拡張するか後で決めることにした。
[root@CentOS ~]# lvdisplay
--- Logical volume ---
LV Path /dev/vg_centos/LogVol01
LV Name LogVol01
VG Name vg_centos
LV UUID afUoDQ-z5FZ-IvQG-19sy-RgAc-TMH1-DZBnOR
LV Write Access read/write
LV Creation host, time CentOS, 2015-07-05 14:21:10 +0900
LV Status available
# open 1
LV Size 96.00 GiB
Current LE 24575
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/vg_centos/LogVol00
LV Name LogVol00
VG Name vg_centos
LV UUID opf5WS-n2mV-3X4o-KHN2-v5rP-sbC7-3YWSQj
LV Write Access read/write
LV Creation host, time CentOS, 2015-07-05 14:21:28 +0900
LV Status available
# open 1
LV Size 4.00 GiB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
[root@CentOS ~]# lvcreate -n /dev/vg_virtualbox/LogVol00 -L 144GB vg_virtualbox
Logical volume "LogVol00" created
[root@CentOS ~]# lvdisplay
--- Logical volume ---
LV Path /dev/vg_virtualbox/LogVol00
LV Name LogVol00
VG Name vg_virtualbox
LV UUID n5Grvt-rvhF-XY10-SdZL-Hq0M-JVMn-iJ66kV
LV Write Access read/write
LV Creation host, time CentOS, 2015-07-25 23:21:33 +0900
LV Status available
# open 0
LV Size 144.00 GiB
Current LE 36864
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/vg_centos/LogVol01
LV Name LogVol01
VG Name vg_centos
LV UUID afUoDQ-z5FZ-IvQG-19sy-RgAc-TMH1-DZBnOR
LV Write Access read/write
LV Creation host, time CentOS, 2015-07-05 14:21:10 +0900
LV Status available
# open 1
LV Size 96.00 GiB
Current LE 24575
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/vg_centos/LogVol00
LV Name LogVol00
VG Name vg_centos
LV UUID opf5WS-n2mV-3X4o-KHN2-v5rP-sbC7-3YWSQj
LV Write Access read/write
LV Creation host, time CentOS, 2015-07-05 14:21:28 +0900
LV Status available
# open 1
LV Size 4.00 GiB
Current LE 1024
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
[root@CentOS ~]# mkfs -t ext4 /dev/vg_virtualbox/LogVol00
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
9437184 inodes, 37748736 blocks
1887436 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
1152 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
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@CentOS ~]# tune2fs -l /dev/vg_virtualbox/LogVol00
tune2fs 1.41.12 (17-May-2010)
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 55f40716-75dc-411f-a8ae-ab1ee90720b4
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 9437184
Block count: 37748736
Reserved block count: 1887436
Free blocks: 37108459
Free inodes: 9437173
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1015
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Sat Jul 25 23:23:53 2015
Last mount time: n/a
Last write time: Sat Jul 25 23:24:19 2015
Mount count: 0
Maximum mount count: 26
Last checked: Sat Jul 25 23:23:53 2015
Check interval: 15552000 (6 months)
Next check after: Thu Jan 21 23:23:53 2016
Lifetime writes: 2437 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 041343e4-690e-4af6-945e-5e731ac0076d
Journal backup: inode blocks
[root@CentOS ~]# tune2fs -c 0 -i 0 /dev/vg_virtualbox/LogVol00
tune2fs 1.41.12 (17-May-2010)
Setting maximal mount count to -1
Setting interval between checks to 0 seconds
[root@CentOS ~]#[root@CentOS ~]# tune2fs -l /dev/vg_virtualbox/LogVol00 |grep -e 'Check interval' -e 'Maximum mount count'
Maximum mount count: -1
Check interval: 0 (<none>)
■マウント処理
[root@CentOS ~]# mkdir /virtualbox
[root@CentOS ~]# vim /etc/fstab
[root@CentOS ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sun Jul 5 14:24:36 2015
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/vg_centos-LogVol01 / ext4 defaults 1 1
UUID=fb09d98f-b893-42ad-a001-f5d1cc343ec4 /boot ext4 defaults 1 2
/dev/mapper/vg_virtualbox-LogVol00 /virtualbox ext4 defaults 1 3
/dev/mapper/vg_centos-LogVol00 swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
[root@CentOS ~]# mount -a
[root@CentOS ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos-LogVol01
95G 50G 41G 56% /
tmpfs 3.8G 0 3.8G 0% /dev/shm
/dev/sda1 190M 64M 117M 36% /boot
/dev/mapper/vg_virtualbox-LogVol00
142G 60M 135G 1% /virtualbox
[root@CentOS ~]# ls /virtualbox/
lost+found
[root@CentOS ~]# chown manatee. /virtualbox/
[root@CentOS ~]# ls -ld /virtualbox/
drwxr-xr-x. 5 manatee manatee 4096 7月 25 23:45 2015 /virtualbox/
