虚拟机ubuntu增加磁盘

虚拟机软件vmware，系统ubuntu 16.04

系统存储空间不够用了，需要扩充一下，记录一下操作步骤。

先关掉虚拟机系统，打开虚拟机设置--硬件--选中“硬盘”--点击右侧的“扩展”按钮，输入想要的空间大小，点“确定”，启动虚拟机。

进入虚拟机后，打开终端，使用fdisk查看分区信息：

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robot@ubuntu:~$ sudo fdisk /dev/sda Welcome to fdisk (util-linux 2.27.1). 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: 60 GiB, 64424509440 bytes, 125829120 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: 0x7c03249e   Device     Boot    Start      End  Sectors  Size Id Type /dev/sda1  *        2048 81885183 81883136   39G 83 Linux /dev/sda2       81887230 83884031  1996802  975M  5 Extended /dev/sda5       81887232 83884031  1996800  975M 82 Linux swap / Solaris

　　因sda1的起始和终止与后面的sda2相连，故删除重建分区还是原大小。所以选择了新建一个分区（参数均采用默认）：

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Command (m for help): n Partition type    p   primary (1 primary, 1 extended, 2 free)    l   logical (numbered from 5) Select (default p):   Using default response p. Partition number (3,4, default 3): First sector (83884032-125829119, default 83884032): Last sector, +sectors or +size{K,M,G,T,P} (83884032-125829119, default 125829119):   Created a new partition 3 of type 'Linux' and of size 20 GiB.   Command (m for help): p Disk /dev/sda: 60 GiB, 64424509440 bytes, 125829120 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: 0x7c03249e   Device     Boot    Start       End  Sectors  Size Id Type /dev/sda1           2048  81887229 81885182   39G 83 Linux /dev/sda2       81887230  83884031  1996802  975M  5 Extended /dev/sda3       83884032 125829119 41945088   20G 83 Linux /dev/sda5       81887232  83884031  1996800  975M 82 Linux swap / Solaris

　　给新分区创建文件系统：

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sudo mkfs.ext4 /dev/sda3 mke2fs 1.42.13 (17-May-2015) Creating filesystem with 5242880 4k blocks and 1313280 inodes Filesystem UUID: e5f39deb-a714-48df-bf8e-67ef0a7d5948 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

　　

挂载新分区

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robot@ubuntu:~$ sudo mount /dev/sda3 /mnt/ssd1 robot@ubuntu:~$ df Filesystem     1K-blocks     Used Available Use% Mounted on udev             1494984        0   1494984   0% /dev tmpfs             304952     5096    299856   2% /run /dev/sda1       40168028 33301852   4802716  88% / tmpfs            1524748      188   1524560   1% /dev/shm tmpfs               5120        4      5116   1% /run/lock tmpfs            1524748        0   1524748   0% /sys/fs/cgroup tmpfs             304952       28    304924   1% /run/user/108 tmpfs             304952        0    304952   0% /run/user/1000 /dev/sda3       20510716    44992  19400768   1% /mnt/ssd1

　　

修改fstab，实现开机自动挂载

使用blkid查看分区UUID，并修改fstab文件（最后加一行：UUID=e5f39deb-a714-48df-bf8e-67ef0a7d5948 /mnt/ssd1               ext4    defaults 0       2）

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robot@ubuntu:~$ sudo blkid /dev/sda1: UUID="05e3875f-b01d-4aac-89dd-f81f2e8b9855" TYPE="ext4" PARTUUID="7c03249e-01" /dev/sda3: UUID="e5f39deb-a714-48df-bf8e-67ef0a7d5948" TYPE="ext4" PARTUUID="7c03249e-03" /dev/sda5: UUID="2a5c42cc-859d-4491-a06d-814d6b88b06e" TYPE="swap" PARTUUID="7c03249e-05"   robot@ubuntu:~$ sudo vi /etc/fstab robot@ubuntu:~$ cat /etc/fstab # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point>   <type>  <options>       <dump>  <pass> # / was on /dev/sda1 during installation UUID=05e3875f-b01d-4aac-89dd-f81f2e8b9855 /               ext4    errors=remount-ro 0       1 # swap was on /dev/sda5 during installation UUID=2a5c42cc-859d-4491-a06d-814d6b88b06e none            swap    sw              0       0 /dev/fd0        /media/floppy0  auto    rw,user,noauto,exec,utf8 0       0 UUID=e5f39deb-a714-48df-bf8e-67ef0a7d5948 /mnt/ssd1               ext4    defaults 0       2

　　这样就扩展了一个新分区。

 

感谢链接：

https://blog.csdn.net/qq_35724582/article/details/135150889

https://www.yisu.com/ask/65087426.html