Ubuntu扩逻辑卷

Ubuntu扩逻辑卷

root@cnsh-kbsr:~# fdisk -l
GPT PMBR size mismatch (1048575999 != 2097151999) will be corrected by w(rite).
Disk /dev/sda: 1000 GiB, 1073741824000 bytes, 2097152000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: EA770C2D-0C8E-4338-91B5-40AD70489B50

Device       Start        End    Sectors   Size Type
/dev/sda1     2048    1050623    1048576   512M EFI System
/dev/sda2  1050624    3147775    2097152     1G Linux filesystem
/dev/sda3  3147776 1048573951 1045426176 498.5G Linux filesystem


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 498.5 GiB, 535256104960 bytes, 1045422080 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

root@cnsh-kbsr:~# parted -l
Warning: Not all of the space available to /dev/sda appears to be used, you can
fix the GPT to use all of the space (an extra 1048576000 blocks) or continue
with the current setting? 
Fix/Ignore? fix                                                           
Model: Msft Virtual Disk (scsi)
Disk /dev/sda: 1074GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  538MB   537MB   fat32              boot, esp
 2      538MB   1612MB  1074MB  ext4
 3      1612MB  537GB   535GB


Model: Linux device-mapper (linear) (dm)
Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 535GB
Sector size (logical/physical): 512B/4096B
Partition Table: loop
Disk Flags: 

Number  Start  End    Size   File system  Flags
 1      0.00B  535GB  535GB  ext4

root@cnsh-kbsr:~# fdisk /dev/sda

Welcome to fdisk (util-linux 2.31.1).
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 number (4-128, default 4): 
First sector (1048573952-2097151966, default 1048573952): 
Last sector, +sectors or +size{K,M,G,T,P} (1048573952-2097151966, default 2097151966): 

Created a new partition 4 of type 'Linux filesystem' and of size 500 GiB.

Command (m for help): t
Partition number (1-4, default 4): 4
Partition type (type L to list all types): 8e

Type of partition 4 is unchanged: Linux filesystem.

Command (m for help): w
The partition table has been altered.
Syncing disks.

root@cnsh-kbsr:~# pvcreate /dev/sda4
  Physical volume "/dev/sda4" successfully created.
root@cnsh-kbsr:~# 
root@cnsh-kbsr:~# pvs
  PV         VG        Fmt  Attr PSize    PFree  
  /dev/sda3  ubuntu-vg lvm2 a--  <498.50g      0 
  /dev/sda4            lvm2 ---   500.00g 500.00g
root@cnsh-kbsr:~# 

root@cnsh-kbsr:~# vgs
  VG        #PV #LV #SN Attr   VSize    VFree
  ubuntu-vg   1   1   0 wz--n- <498.50g    0 
root@cnsh-kbsr:~# 
root@cnsh-kbsr:~# vgextend ubuntu-vg /dev/sda4
  Volume group "ubuntu-vg" successfully extended
root@cnsh-kbsr:~# 
root@cnsh-kbsr:~# vgs
  VG        #PV #LV #SN Attr   VSize   VFree   
  ubuntu-vg   2   1   0 wz--n- 998.49g <500.00g

root@cnsh-kbsr:~# lvs
  LV        VG        Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  ubuntu-lv ubuntu-vg -wi-ao---- <498.50g                                                    
root@cnsh-kbsr:~# 
root@cnsh-kbsr:~# lvextend -L +499G /dev/ubuntu-vg/ubuntu-lv 
  Size of logical volume ubuntu-vg/ubuntu-lv changed from <498.50 GiB (127615 extents) to <997.50 GiB (255359 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.

root@cnsh-kbsr:~# resize2fs /dev/ubuntu-vg/ubuntu-lv 
resize2fs 1.44.1 (24-Mar-2018)
Filesystem at /dev/ubuntu-vg/ubuntu-lv is mounted on /; on-line resizing required
old_desc_blocks = 63, new_desc_blocks = 125
The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 261487616 (4k) blocks long.

root@cnsh-kbsr:~# df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               7.8G     0  7.8G   0% /dev
tmpfs                              1.6G  588K  1.6G   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  981G  465G  472G  50% /
tmpfs                              7.9G     0  7.9G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              7.9G     0  7.9G   0% /sys/fs/cgroup
/dev/sda2                          976M  151M  759M  17% /boot
/dev/sda1                          511M  6.6M  505M   2% /boot/efi
tmpfs                              1.6G     0  1.6G   0% /run/user/0
tmpfs                              1.6G     0  1.6G   0% /run/user/1000