1. ubuntu 磁盘容量告急,df -h如下:
~$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 4.9G 0 4.9G 0% /dev
tmpfs 999M 1.4M 998M 1% /run
/dev/sda1 16G 14G 1.5G 91% /
2. 打开VB的“管理”
设置“虚拟介质管理”,扩充16G =》 64GB,并点击 “应用”。这个时候只是虚拟分配了,并未实际分配,要用fdisk 增加新分区来取。
3. 进入Ubuntu系统,可以看到fdisk /dev/sda已经有64GB
~$ sudo fdisk -l /dev/sda
Disk /dev/sda: 64 GiB, 68719476736 bytes, 134217728 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: 0xe9acfcdb
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 33552383 33550336 16G 83 Linux
新增分区:
~$ sudo 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 type
p primary (1 primary, 0 extended, 3 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (2-4, default 2):
First sector (33552384-134217727, default 33552384):
Last sector, +sectors or +size{K,M,G,T,P} (33552384-134217727, default 134217727):
Created a new partition 2 of type 'Linux' and of size 48 GiB.
Command (m for help): p
Disk /dev/sda: 64 GiB, 68719476736 bytes, 134217728 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: 0xe9acfcdb
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 33552383 33550336 16G 83 Linux
/dev/sda2 33552384 134217727 100665344 48G 83 Linux
Command (m for help): w
The partition table has been altered.
Syncing disks.
4.格式化并添加到自动挂载列表中:
sudo mkfs -t ext4 /dev/sda2
mke2fs 1.44.1 (24-Mar-2018)
Creating filesystem with 12582912 4k blocks and 3151872 inodes
Filesystem UUID: c9a79c6e-6feb-4877-92e5-28b4e0b7e4c9
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424
Allocating group tables: done
Writing inode tables: done
Creating journal (65536 blocks): done
Writing superblocks and filesystem accounting information: done
查看uuid
~$ lsblk -f|grep ext4
├─sda1 ext4 e1a7fa70-ec4b-43d9-9d7f-b736419c9dae /
└─sda2 ext4 c9a79c6e-6feb-4877-92e5-28b4e0b7e4c9
添加到自动挂载列表中
sudo vim /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).
#
#
# / was on /dev/sda1 during installation
UUID=e1a7fa70-ec4b-43d9-9d7f-b736419c9dae / ext4 errors=remount-ro 0 1
UUID=c9a79c6e-6feb-4877-92e5-28b4e0b7e4c9 /home/yeshang/sda2 ext4 errors=remount-ro 0 1
/swapfile none swap sw 0 0
建立软连接,把sda1上的数据移动到sda2
bin -> sda2/bin
Downloads -> /home/yeshang/sda2/Downloads/
Projects -> sda2/Projects
~$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 4.9G 0 4.9G 0% /dev
tmpfs 999M 1.4M 998M 1% /run
/dev/sda1 16G 9.1G 5.9G 61% /
tmpfs 4.9G 0 4.9G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
...
/dev/sda2 47G 4.6G 41G 11% /home/yeshang/sda2