我正在尝试在 Ubuntu 16.04 上扩展我的 lvm 分区，但是
lvextend -l +100%FREE /dev/Server0-vg/root
节目
New size (3861 extents) matches existing size (3861 extents)
Run `lvextend --help' for more information.
我的 lvm 分区是 /dev/sda5，它位于 /dev/sda2 - 都是 159GB。 lv显示显示：
--- Logical volume ---
LV Path /dev/Server0-vg/root
LV Name root
VG Name Server0-vg
LV UUID fxh0JM-oKQM-nIrj-c5S0-Tlw6-GGKX-2vcZY8
LV Write Access read/write
LV Creation host, time Server0, 2004-11-29 01:15:23 +0100
LV Status available
# open 1
LV Size 15,08 GiB
Current LE 3861
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/Server0-vg/swap_1
LV Name swap_1
VG Name Server0-vg
LV UUID ZxV31F-BLza-3QaB-awXX-3IBt-SvzA-Lo2RAj
LV Write Access read/write
LV Creation host, time Server0, 2004-11-29 01:15:24 +0100
LV Status available
# open 2
LV Size 508,00 MiB
Current LE 127
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
（如果有人没有得到，我想将/dev/Server0-vg/root扩展到159gb）
df -h 显示：
Filesystem Size Used Avail Use% Mounted on
udev 737M 0 737M 0% /dev
tmpfs 151M 5,1M 146M 4% /run
/dev/mapper/Server0--vg-root 15G 6,7G 7,3G 48% /
tmpfs 754M 0 754M 0% /dev/shm
tmpfs 5,0M 0 5,0M 0% /run/lock
tmpfs 754M 0 754M 0% /sys/fs/cgroup
/dev/sda1 472M 453M 0 100% /boot
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
tmpfs 151M 0 151M 0% /run/user/1000
分开显示中的“打印”：
Model: ATA WDC WD1600BB-56R (scsi)
Disk /dev/sda: 160GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 512MB 511MB primary ext2 boot
2 513MB 160GB 159GB extended
5 513MB 160GB 159GB logical lvm
sudo vgdisplay 的结果：
--- Volume group ---
VG Name Server0-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
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 15,58 GiB
PE Size 4,00 MiB
Total PE 3988
Alloc PE / Size 3988 / 15,58 GiB
Free PE / Size 0 / 0
VG UUID 302ela-v51W-hM2T-zjdv-8QtK-ZFBc-SW1D5Y
sudo pvdisplay 的结果：
--- Physical volume ---
PV Name /dev/sda5
VG Name Server0-vg
PV Size 15,58 GiB / not usable 4,00 MiB
Allocatable yes (but full)
PE Size 4,00 MiB
Total PE 3988
Free PE 0
Allocated PE 3988
PV UUID 6j391r-dL9l-8Rw8-kGt4-Ewxg-NiyM-rjzggr
答案1
由于您的Physical volume大小仅为 15,58 GiB，Volume group因此Logical Volume不能更大。
首先，您必须调整物理卷的大小：
sudo pvresize /dev/sda5
（请参阅man pvresize参考资料 选项）。如果您不希望将其调整到最大大小，请使用选项--setphysicalvolumesize。
现在再次查看vgdisplay卷组是否也已扩展。