LVMに空きパーティション追加
12943 ワード
目的
- CloudAtCostのDebianがLVMでインストールされていた。
- /dev/sda3が既存のLVM(8.6G)
- /dev/sda1(237M)と/dev/sda2(954M)を削除し、
- /dev/sda1(1.3G)を作成し既存のLVMに追加したい(8.6G+1.3G=>9.8G)
参考
現状確認
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.4G 6.8G 18% /
# fdisk -l /dev/sda
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 487423 485376 237M 83 Linux
/dev/sda2 487424 2441215 1953792 954M 82 Linux swap / Solaris
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
swap off
# swapoff /dev/sda2
- /etc/fstabのswap削除
/dev/sda1,2を削除
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.25.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 487423 485376 237M 83 Linux
/dev/sda2 487424 2441215 1953792 954M 82 Linux swap / Solaris
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): d
Partition number (1-4, default 4): 1
Partition 1 has been deleted.
Command (m for help): d
Partition number (2-4, default 4): 2
Partition 2 has been deleted.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy
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).
# reboot
/dev/sda1作成
/dev/sda1作成
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.25.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (2 primary, 0 extended, 2 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1,2, default 1):
First sector (2048-20971519, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-2441215, default 2441215):
Created a new partition 1 of type 'Linux' and of size 1.2 GiB.
Command (m for help): t
Partition number (1,3,4, default 4): 1
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 2441215 2439168 1.2G 8e Linux LVM
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy
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).
# reboot
pvcreate
# fdisk -l /dev/sda
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 2441215 2439168 1.2G 8e Linux LVM
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
# pvdisplay -v
DEGRADED MODE. Incomplete RAID LVs will be processed.
Scanning for physical volume names
--- Physical volume ---
PV Name /dev/sda3
VG Name vg_cac
PV Size 8.83 GiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 2261
Free PE 0
Allocated PE 2261
PV UUID gjBdEp-9uoK-Hnxo-9isu-Hi30-3ZZ3-lzdY3b
# pvscan
PV /dev/sda3 VG vg_cac lvm2 [8.83 GiB / 0 free]
Total: 1 [8.83 GiB] / in use: 1 [8.83 GiB] / in no VG: 0 [0 ]
# pvcreate /dev/sda1
Physical volume "/dev/sda1" successfully created
# vgscan
Reading all physical volumes. This may take a while...
Found volume group "vg_cac" using metadata type lvm2
# vgextend vg_cac /dev/sda1
Volume group "vg_cac" successfully extended
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.3G 6.9G 16% /
# vgdisplay
--- Volume group ---
VG Name vg_cac
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 9.99 GiB
PE Size 4.00 MiB
Total PE 2558
Alloc PE / Size 2261 / 8.83 GiB
Free PE / Size 297 / 1.16 GiB
VG UUID AlBirr-duAr-Mwzy-JYtP-rhgG-T7y4-C6LR09
lvextend
# lvextend -l +297 /dev/vg_cac/root_cac
Size of logical volume vg_cac/root_cac changed from 8.83 GiB (2261 extents) to 9.99 GiB (2558 extents).
Logical volume root_cac successfully resized
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.3G 6.9G 16% /
resize2fs
# resize2fs /dev/vg_cac/root_cac
resize2fs 1.42.12 (29-Aug-2014)
Filesystem at /dev/vg_cac/root_cac is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/vg_cac/root_cac is now 2619392 (4k) blocks long.
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 9.8G 1.3G 8.0G 14% /
- /dev/sda3が既存のLVM(8.6G)
- /dev/sda1(237M)と/dev/sda2(954M)を削除し、
- /dev/sda1(1.3G)を作成し既存のLVMに追加したい(8.6G+1.3G=>9.8G)
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.4G 6.8G 18% /
# fdisk -l /dev/sda
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 487423 485376 237M 83 Linux
/dev/sda2 487424 2441215 1953792 954M 82 Linux swap / Solaris
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
# swapoff /dev/sda2
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.25.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 487423 485376 237M 83 Linux
/dev/sda2 487424 2441215 1953792 954M 82 Linux swap / Solaris
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): d
Partition number (1-4, default 4): 1
Partition 1 has been deleted.
Command (m for help): d
Partition number (2-4, default 4): 2
Partition 2 has been deleted.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy
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).
# reboot
/dev/sda1作成
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.25.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (2 primary, 0 extended, 2 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1,2, default 1):
First sector (2048-20971519, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-2441215, default 2441215):
Created a new partition 1 of type 'Linux' and of size 1.2 GiB.
Command (m for help): t
Partition number (1,3,4, default 4): 1
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 2441215 2439168 1.2G 8e Linux LVM
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Device or resource busy
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).
# reboot
# fdisk -l /dev/sda
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0001cb21
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 2441215 2439168 1.2G 8e Linux LVM
/dev/sda3 2441216 20969471 18528256 8.9G 8e Linux LVM
/dev/sda4 20969472 20971519 2048 1M 8e Linux LVM
# pvdisplay -v
DEGRADED MODE. Incomplete RAID LVs will be processed.
Scanning for physical volume names
--- Physical volume ---
PV Name /dev/sda3
VG Name vg_cac
PV Size 8.83 GiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 2261
Free PE 0
Allocated PE 2261
PV UUID gjBdEp-9uoK-Hnxo-9isu-Hi30-3ZZ3-lzdY3b
# pvscan
PV /dev/sda3 VG vg_cac lvm2 [8.83 GiB / 0 free]
Total: 1 [8.83 GiB] / in use: 1 [8.83 GiB] / in no VG: 0 [0 ]
# pvcreate /dev/sda1
Physical volume "/dev/sda1" successfully created
# vgscan
Reading all physical volumes. This may take a while...
Found volume group "vg_cac" using metadata type lvm2
# vgextend vg_cac /dev/sda1
Volume group "vg_cac" successfully extended
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.3G 6.9G 16% /
# vgdisplay
--- Volume group ---
VG Name vg_cac
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size 9.99 GiB
PE Size 4.00 MiB
Total PE 2558
Alloc PE / Size 2261 / 8.83 GiB
Free PE / Size 297 / 1.16 GiB
VG UUID AlBirr-duAr-Mwzy-JYtP-rhgG-T7y4-C6LR09
# lvextend -l +297 /dev/vg_cac/root_cac
Size of logical volume vg_cac/root_cac changed from 8.83 GiB (2261 extents) to 9.99 GiB (2558 extents).
Logical volume root_cac successfully resized
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 8.6G 1.3G 6.9G 16% /
# resize2fs /dev/vg_cac/root_cac
resize2fs 1.42.12 (29-Aug-2014)
Filesystem at /dev/vg_cac/root_cac is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
The filesystem on /dev/vg_cac/root_cac is now 2619392 (4k) blocks long.
# df -h /dev/dm-0
Filesystem Size Used Avail Use% Mounted on
/dev/dm-0 9.8G 1.3G 8.0G 14% /
完成
Author And Source
この問題について(LVMに空きパーティション追加), 我々は、より多くの情報をここで見つけました https://qiita.com/tukiyo3/items/014813bbb170daccbad7著者帰属：元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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