为 vmware 虚拟机磁盘扩容

磁盘空间不足，需要进行扩容 20G

  1. df -h 查看磁盘使用情况
  1. Filesystem                         Size  Used Avail Use% Mounted on
  2. udev                               966M     0  966M   0% /dev
  3. tmpfs                              200M  2.6M  197M   2% /run
  4. /dev/mapper/ubuntu--vg-ubuntu--lv   19G  5.9G   12G  33% /
  5. tmpfs                              997M     0  997M   0% /dev/shm
  6. tmpfs                              5.0M     0  5.0M   0% /run/lock
  7. tmpfs                              997M     0  997M   0% /sys/fs/cgroup
  8. /dev/loop0                          89M   89M     0 100% /snap/core/7270
  9. /dev/loop1                          92M   92M     0 100% /snap/core/8689
  10. /dev/sda2                          976M  145M  765M  16% /boot
  11. tmpfs                              200M     0  200M   0% /run/user/0
  1. 执行 parted
root@radius:/home/casa# parted /dev/vda
GNU Parted 3.2
Using /dev/vda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p                                                                
Warning: Not all of the space available to /dev/vda appears to be used, you can fix the GPT to use all of the space (an extra 62914560 blocks) or continue with the current setting? 
Fix/Ignore? Fix                                                           
Model: Virtio Block Device (virtblk)
Disk /dev/vda: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  2097kB  1049kB                     bios_grub
 2      2097kB  1076MB  1074MB  ext4
 3      1076MB  10.7GB  9661MB
  1. 对新加的硬盘进行分区，格式化
fdisk /dev/sda

root@SERVER-214:~# 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 (5-128, default 5): 
First sector (41943007-83886046, default 41943040): 
Last sector, +sectors or +size{K,M,G,T,P} (41943040-83886046, default 83886046): 

Created a new partition 5 of type 'Linux filesystem' and of size 20 GiB.

Command (m for help): t
Partition number (1-5, default 5): 
Partition type (type L to list all types): 8e

Type of partition 5 is unchanged: Linux filesystem.

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

其中空的选项为默认值，回车即可

  1. 同步磁盘

    partprobe

  2. 查看分区

root@SERVER-214:~# fdisk -l
Disk /dev/loop0: 88.5 MiB, 92778496 bytes, 181208 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


Disk /dev/loop1: 91.4 MiB, 95805440 bytes, 187120 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


Disk /dev/sda: 40 GiB, 42949672960 bytes, 83886080 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: gpt
Disk identifier: 35336CBB-AA0E-4985-9627-47299607B0AF

Device        Start      End  Sectors Size Type
/dev/sda1      2048     4095     2048   1M BIOS boot
/dev/sda2      4096  2101247  2097152   1G Linux filesystem
/dev/sda3   2101248 20969471 18868224   9G Linux filesystem
/dev/sda4  20969472 41943006 20973535  10G Linux filesystem
/dev/sda5  41943040 83886046 41943007  20G Linux filesystem




Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 19 GiB, 20388511744 bytes, 39821312 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
root@SERVER-214:~# mkfs.ext4 /dev/sda5 
mke2fs 1.44.1 (24-Mar-2018)
Creating filesystem with 5242875 4k blocks and 1310720 inodes
Filesystem UUID: afbfa28c-a567-4521-b211-7ca4fd396284
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
    4096000

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
  1. 加新创建的 /dev/sda5 加入 pv 卷中
pvcreate /dev/sda5

root@SERVER-214:~# pvcreate /dev/sda5 
WARNING: ext4 signature detected on /dev/sda5 at offset 1080. Wipe it? [y/n]: y
  Wiping ext4 signature on /dev/sda5.
  Physical volume "/dev/sda5" successfully created.
  1. 查看新的卷组
root@SERVER-214:~# pvs
  PV         VG        Fmt  Attr PSize   PFree  
  /dev/sda3  ubuntu-vg lvm2 a--   <9.00g      0 
  /dev/sda4  ubuntu-vg lvm2 a--  <10.00g   4.00m
  /dev/sda5            lvm2 ---  <20.00g <20.00g
  1. 如果需要加到 lvs 中，查看另一篇教程