Ubuntu 挂载新硬盘
0 查看目前挂载了那些硬盘，可以看到，只使用了sda 硬盘。
dacent@dacent:~$ df -lh
Filesystem Size Used Avail Use% Mounted on
udev 63G 0 63G 0% /dev
tmpfs 13G 9.6M 13G 1% /run
/dev/mapper/dacent--vg-root 219G 2.0G 206G 1% /
tmpfs 63G 0 63G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/sda1 472M 107M 342M 24% /boot
tmpfs 13G 0 13G 0% /run/user/1000
tmpfs 13G 0 13G 0% /run/user/1001
1 发现新硬盘，找到新的硬盘。这里发现了sdb新硬盘。
sudo fdisk -l
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 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: dos
Disk identifier: 0x1213cdba
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 468860927 467859458 223.1G 5 Extended
/dev/sda5 1001472 468860927 467859456 223.1G 8e Linux LVM
Partition 2 does not start on physical sector boundary.
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 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
2 为sdb硬盘新建分区
linlf@dacent:~$ sudo fdisk /dev/sdb
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.
Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0x6d19375b.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p):
Using default response p.
Partition number (1-4, default 1):
First sector (2048-1953525167, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-1953525167, default 1953525167):
Created a new partition 1 of type 'Linux' and of size 931.5 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
3 查看新硬盘的新分区
sudo fdisk -l /dev/sdb
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 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: 0x6d19375b
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 1953525167 1953523120 931.5G 83 Linux
4 把新分区的文件格式改成 ext4
linlf@dacent:~$ sudo mkfs.ext4 /dev/sdb1
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 244190390 4k blocks and 61054976 inodes
Filesystem UUID: 938e6783-d5cb-4e38-98e2-e8e2b0918587
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
4.2 在更改文件格式的时候，出现一些小插曲，是关于 /dev/sdb1 contains a ntfs file system ：
linlf@ccrfox247:~$ sudo mkfs.ext4 /dev/sdb1
mke2fs 1.42.13 (17-May-2015)
/dev/sdb1 contains a ntfs file system
无论如何也要继续? (y,n) y
Creating filesystem with 244190390 4k blocks and 61054976 inodes
Filesystem UUID: 92490692-374a-416d-8eaf-0e977964332b
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: 完成
正在写入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
5 查看新分区的文件类型与设备号
linlf@dacent:~$ sudo blkid /dev/sdb1
/dev/sdb1: UUID="928e6783-d5cb-4e38-98e2-e8e2b0918587" TYPE="ext4" PARTUUID="6219375b-01"
6 有新分区之后，我们就可以着手挂载了，因为我希望我使用的存储空间大一些，所以我挂载在 /home 目录下，注意不能将同一个目录挂载在个不同的分区。
dacent@dacent:~$ sudo mkdir /new
dacent@dacent:~$ sudo mount /dev/sdb1 /new
dacent@dacent:~$ sudo cp -r /home/* /new
dacent@dacent:~$
dacent@dacent:~$ ls /new/ （查看是否复制成功）
dacent linlf
dacent@dacent:~$ sudo umount /dev/sdb1
dacent@dacent:~$ sudo mount /dev/sdb1 /home （挂载成功）
7 最后，为了让新硬盘开机自动挂载，在 /etc/fstab 内增加一行 sudo vi /etc/fstab
UUID=928e6783-d5cb-4e38-98e2-e8e2b0918587 /home ext4 defaults 0 2
8 重启以验证最后一步。
reboot