Ubuntu中制作LVM

最新推荐文章于 2025-05-29 10:59:47 发布

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最新推荐文章于 2025-05-29 10:59:47 发布

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原文链接：http://www.cnblogs.com/gispathfinder/archive/2012/01/03/2310589.html

本文详细介绍了Linux环境下使用LVM2创建物理卷、卷组、逻辑卷及文件系统的全过程，包括安装LVM2、分区探查、物理卷创建、卷组创建、逻辑卷创建、文件系统挂载等关键步骤。

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1.安装lvm2

sudo apt-get install lvm2

sudo fdisk -l
------------结果---------

Device Boot      Start         End      Blocks   Id System
/dev/sda1            2048     3905535     1951744   82 Linux swap / Solaris
/dev/sda2         3905536     5859327      976896   83 Linux
/dev/sda3         5859328    35155967    14648320   8e Linux LVM
/dev/sda4   *    35155968    41940991     3392512   83 Linux

partprobe

------------结果---------

4.PV阶段

sudo pvscan
sudo pvcreate /dev/sda3
sudo pvscan
sudo pvdisplay

   --- Physical volume ---
PV Name               /dev/sda3
VG Name               lvmfsvg
PV Size               13.97 GiB / not usable 1.00 MiB
Allocatable           yes (but full)
PE Size               16.00 MiB
Total PE              894
Free PE               0
Allocated PE          894
PV UUID               PqPT3V-42Ls-fDNS-Govj-jqd1-8Y3E-TGplzJ

5.VG阶段

sudo vgcreate -s 16M lvmfsvg /dev/sda3
sudo vgscan
sudo vgdisplay

--- Volume group ---
VG Name               lvmfsvg
System ID
Format                lvm2
Metadata Areas        1
Metadata Sequence No 2
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                1
Open LV               1
Max PV                0
Cur PV                1
Act PV                1
VG Size               13.97 GiB
PE Size               16.00 MiB
Total PE              894
Alloc PE / Size       894 / 13.97 GiB
Free PE / Size       0 / 0
VG UUID               6xdlAb-UfZf-imgz-VBp1-mbgF-Veep-U1PVSI

5.LV阶段

sudo lvcreate -l 894 -n lvmfslv lvmfsvg

sudo ll /dev/lvmfsvg/lvmfslv
sudo lvdisplay

--- Logical volume ---
LV Name                /dev/lvmfsvg/lvmfslv
VG Name                lvmfsvg
LV UUID                uXPGlQ-YKpR-UFtW-XvfM-o7iC-ahEk-TBvMt2
LV Write Access        read/write
LV Status              available
# open                 1
LV Size                13.97 GiB
Current LE             894
Segments               1
Allocation             inherit
Read ahead sectors     auto
- currently set to     256
Block device           252:0

6.文件系统阶段
   sudo mkfs -t ext4 /dev/lvmfsvg/lvmfslv
   mount /dev/lvmfsvg/lvmfslv /mnt/lvm
   sudo mount /dev/lvmfsvg/lvmfslv /mnt/lvm

   sudo df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda4              3339208    693716   2475868 22% /
udev                   1023796         4   1023792   1% /dev
tmpfs                   412324       280    412044   1% /run
none                      5120         0      5120   0% /run/lock
none                   1030808         0   1030808   0% /run/shm
/dev/sda2               961528    180644    732040 20% /var
/dev/mapper/lvmfsvg-lvmfslv
                      14417392    166816 13518212   2% /mnt/lvm

转载于:https://www.cnblogs.com/gispathfinder/archive/2012/01/03/2310589.html