2017年07月26日 22:56
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# FDISK でパーティションの状況を確認
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[root@server1 ~]# fdisk -l /dev/sda
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 2999.0 GB, 2998950428672 bytes, 5857325056 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O サイズ (最小 / 推奨): 512 バイト / 512 バイト
Disk label type: gpt
# Start End Size Type Name
1 2048 4095 1M BIOS boot parti
2 4096 2101247 1G Microsoft basic
3 2101248 219957247 103.9G Linux LVM
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# 3 番目のパーティションを消去
※ 私の例では、同じ「セクタ番号」、同じ「Type」で作成する事で、データは消えなかった。＜けど、ご自身の責任で行ってね。
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コマンド (m でヘルプ): d
パーティション番号 (1-3, default 3): 3
Partition 3 is deleted
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# 消した 3 番で再作成
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コマンド (m でヘルプ): n
パーティション番号 (3-128, default 3): 3
First sector (34-5857325022, default 2101248):
Last sector, +sectors or +size{K,M,G,T,P} (2101248-5857325022, default 5857325022):
Created partition 3
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# サイズを拡大して作成したパーティション確認
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コマンド (m でヘルプ): p
Disk /dev/sda: 2999.0 GB, 2998950428672 bytes, 5857325056 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O サイズ (最小 / 推奨): 512 バイト / 512 バイト
Disk label type: gpt
# Start End Size Type Name
1 2048 4095 1M BIOS boot parti
2 4096 2101247 1G Microsoft basic
3 2101248 5857325022 2.7T Linux filesyste
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# Type を確認 > LVM は 15 。
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コマンド (m でヘルプ): l
1 EFI System C12A7328-F81F-11D2-BA4B-00A0C93EC93B
2 MBR partition scheme 024DEE41-33E7-11D3-9D69-0008C781F39F
3 BIOS boot partition 21686148-6449-6E6F-744E-656564454649
4 Microsoft reserved E3C9E316-0B5C-4DB8-817D-F92DF00215AE
5 Microsoft basic data EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
6 Microsoft LDM metadata 5808C8AA-7E8F-42E0-85D2-E1E90434CFB3
7 Microsoft LDM data AF9B60A0-1431-4F62-BC68-3311714A69AD
8 Windows recovery evironmnet DE94BBA4-06D1-4D40-A16A-BFD50179D6AC
9 IBM General Parallel Fs 37AFFC90-EF7D-4E96-91C3-2D7AE055B174
10 HP-UX data partition 75894C1E-3AEB-11D3-B7C1-7B03A0000000
11 HP-UX service partition E2A1E728-32E3-11D6-A682-7B03A0000000
12 Linux filesystem 0FC63DAF-8483-4772-8E79-3D69D8477DE4
13 Linux RAID A19D880F-05FC-4D3B-A006-743F0F84911E
14 Linux swap 0657FD6D-A4AB-43C4-84E5-0933C84B4F4F
15 Linux LVM E6D6D379-F507-44C2-A23C-238F2A3DF928
16 Linux reserved 8DA63339-0007-60C0-C436-083AC8230908
17 FreeBSD data 516E7CB4-6ECF-11D6-8FF8-00022D09712B
18 FreeBSD boot 83BD6B9D-7F41-11DC-BE0B-001560B84F0F
19 FreeBSD swap 516E7CB5-6ECF-11D6-8FF8-00022D09712B
20 FreeBSD UFS 516E7CB6-6ECF-11D6-8FF8-00022D09712B
21 FreeBSD ZFS 516E7CBA-6ECF-11D6-8FF8-00022D09712B
22 FreeBSD Vinum 516E7CB8-6ECF-11D6-8FF8-00022D09712B
23 Apple HFS/HFS+ 48465300-0000-11AA-AA11-00306543ECAC
24 Apple UFS 55465300-0000-11AA-AA11-00306543ECAC
25 Apple RAID 52414944-0000-11AA-AA11-00306543ECAC
26 Apple RAID offline 52414944-5F4F-11AA-AA11-00306543ECAC
27 Apple boot 426F6F74-0000-11AA-AA11-00306543ECAC
28 Apple label 4C616265-6C00-11AA-AA11-00306543ECAC
29 Apple TV recovery 5265636F-7665-11AA-AA11-00306543ECAC
30 Apple Core storage 53746F72-6167-11AA-AA11-00306543ECAC
31 Solaris boot 6A82CB45-1DD2-11B2-99A6-080020736631
32 Solaris root 6A85CF4D-1DD2-11B2-99A6-080020736631
33 Solaris /usr & Apple ZFS 6A898CC3-1DD2-11B2-99A6-080020736631
34 Solaris swap 6A87C46F-1DD2-11B2-99A6-080020736631
35 Solaris backup 6A8B642B-1DD2-11B2-99A6-080020736631
36 Solaris /var 6A8EF2E9-1DD2-11B2-99A6-080020736631
37 Solaris /home 6A90BA39-1DD2-11B2-99A6-080020736631
38 Solaris alternate sector 6A9283A5-1DD2-11B2-99A6-080020736631
39 Solaris reserved 1 6A945A3B-1DD2-11B2-99A6-080020736631
40 Solaris reserved 2 6A9630D1-1DD2-11B2-99A6-080020736631
41 Solaris reserved 3 6A980767-1DD2-11B2-99A6-080020736631
42 Solaris reserved 4 6A96237F-1DD2-11B2-99A6-080020736631
43 Solaris reserved 5 6A8D2AC7-1DD2-11B2-99A6-080020736631
44 NetBSD swap 49F48D32-B10E-11DC-B99B-0019D1879648
45 NetBSD FFS 49F48D5A-B10E-11DC-B99B-0019D1879648
46 NetBSD LFS 49F48D82-B10E-11DC-B99B-0019D1879648
47 NetBSD concatenated 2DB519C4-B10E-11DC-B99B-0019D1879648
48 NetBSD encrypted 2DB519EC-B10E-11DC-B99B-0019D1879648
49 NetBSD RAID 49F48DAA-B10E-11DC-B99B-0019D1879648
50 ChromeOS kernel FE3A2A5D-4F32-41A7-B725-ACCC3285A309
51 ChromeOS root fs 3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC
52 ChromeOS reserved 2E0A753D-9E48-43B0-8337-B15192CB1B5E
53 MidnightBSD data 85D5E45A-237C-11E1-B4B3-E89A8F7FC3A7
54 MidnightBSD boot 85D5E45E-237C-11E1-B4B3-E89A8F7FC3A7
55 MidnightBSD swap 85D5E45B-237C-11E1-B4B3-E89A8F7FC3A7
56 MidnightBSD UFS 0394Ef8B-237C-11E1-B4B3-E89A8F7FC3A7
57 MidnightBSD ZFS 85D5E45D-237C-11E1-B4B3-E89A8F7FC3A7
58 MidnightBSD Vinum 85D5E45C-237C-11E1-B4B3-E89A8F7FC3A7
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# 3 番パーティションの Type を変更
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コマンド (m でヘルプ): t
パーティション番号 (1-3, default 3): 3
Partition type (type L to list all types): 15
Changed type of partition 'Linux filesystem' to 'Linux LVM'
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# 変更したのでパーティションの状況を確認
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コマンド (m でヘルプ): p
Disk /dev/sda: 2999.0 GB, 2998950428672 bytes, 5857325056 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O サイズ (最小 / 推奨): 512 バイト / 512 バイト
Disk label type: gpt
# Start End Size Type Name
1 2048 4095 1M BIOS boot parti
2 4096 2101247 1G Microsoft basic
3 2101248 5857325022 2.7T Linux LVM
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# 書き込み!!!!! そして再起動
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コマンド (m でヘルプ): w
パーティションテーブルは変更されました！
ioctl() を呼び出してパーティションテーブルを再読込みします。
WARNING: Re-reading the partition table failed with error 16: デバイスもしくはリソースがビジー状態です.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
ディスクを同期しています。
[root@server1 ~]# reboot
Connection to server1 closed by remote host.
Connection to server1 closed.
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# PING で確認 or 起動するか画面確認、無事起動
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[root@server0 ~]# ping server1
PING server1 (192.168.1.2) 56(84) bytes of data.
From server0 (192.168.1.1) icmp_seq=42 Destination Host Unreachable
....
From server0 (192.168.1.1) icmp_seq=113 Destination Host Unreachable
64 bytes from server1 (192.168.1.2): icmp_seq=114 ttl=64 time=1.28 ms
64 bytes from server1 (192.168.1.2): icmp_seq=115 ttl=64 time=0.107 ms
64 bytes from server1 (192.168.1.2): icmp_seq=116 ttl=64 time=0.133 ms
64 bytes from server1 (192.168.1.2): icmp_seq=117 ttl=64 time=0.152 ms
64 bytes from server1 (192.168.1.2): icmp_seq=118 ttl=64 time=0.134 ms
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# 再度 FDISK で確認
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root@server1 ~]# fdisk /dev/sda
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
コマンド (m でヘルプ): p
Disk /dev/sda: 2999.0 GB, 2998950428672 bytes, 5857325056 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O サイズ (最小 / 推奨): 512 バイト / 512 バイト
Disk label type: gpt
# Start End Size Type Name
1 2048 4095 1M BIOS boot parti
2 4096 2101247 1G Microsoft basic
3 2101248 5857325022 2.7T Linux LVM
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# df でパーティション状況確認
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[root@server1 ~]# df
ファイルシス 1K-ブロック 使用 使用可 使用% マウント位置
/dev/mapper/cl-root 52403200 1237584 51165616 3% /
devtmpfs 1927540 0 1927540 0% /dev
tmpfs 1938256 0 1938256 0% /dev/shm
tmpfs 1938256 8724 1929532 1% /run
tmpfs 1938256 0 1938256 0% /sys/fs/cgroup
/dev/sda2 1038336 187620 850716 19% /boot
/dev/mapper/cl-home 52403200 32944 52370256 1% /home
tmpfs 387652 0 387652 0% /run/user/0
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# pvdisplay
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[root@server1 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda3
VG Name cl
PV Size 103.88 GiB / not usable 3.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 26593
Free PE 1
Allocated PE 26592
PV UUID XXXXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXXXX
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# pvscan 。。。変わって無い。
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[root@server1 ~]# pvscan
PV /dev/sda3 VG cl lvm2 [103.88 GiB / 4.00 MiB free]
Total: 1 [103.88 GiB] / in use: 1 [103.88 GiB] / in no VG: 0 [0 ]
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# すかさず pvresize 。
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[root@server1 ~]# pvresize /dev/sda3
Physical volume "/dev/sda3" changed
1 physical volume(s) resized / 0 physical volume(s) not resized
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# pvdisplay で確認。よしっ変わった!!! 成功です!
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[root@server1 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda3
VG Name cl
PV Size 2.73 TiB / not usable 2.98 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 714748
Free PE 688156
Allocated PE 26592
PV UUID XXXXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXXXX
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