1. 查看磁盘
[root@yzb-centos72-3 ~]# fdisk -l Disk /dev/vda: 32.2 GB, 32212254720 bytes, 62914560 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 label type: dos Disk identifier: 0x0009680e Device Boot Start End Blocks Id System /dev/vda1 2048 4194303 2096128 82 Linux swap / Solaris /dev/vda2 * 4194304 56623103 26214400 83 Linux Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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
发现/dev/vdb这块未分区、格式化
2. 分区
[root@yzb-centos72-3 ~]# fdisk /dev/vdb Welcome to fdisk (util-linux 2.23.2). 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 Building a new DOS disklabel with disk identifier 0x20ea1593. Command (m for help): 输入m 查看
Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition g create a new empty GPT partition table G create an IRIX (SGI) partition table l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): 输入n
Command (m for help): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended
输入p
Select (default p): p
一路回车默认
Partition number (1-4, default 1): First sector (2048-209715199, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199): Using default value 209715199 Partition 1 of type Linux and of size 100 GiB is set
输入w Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
查看 fdisk -l
已经分好区，但是未格式化
[root@yzb-centos72-3 ~]# fdisk -l Disk /dev/vda: 32.2 GB, 32212254720 bytes, 62914560 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 label type: dos Disk identifier: 0x0009680e Device Boot Start End Blocks Id System /dev/vda1 2048 4194303 2096128 82 Linux swap / Solaris /dev/vda2 * 4194304 56623103 26214400 83 Linux Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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 label type: dos Disk identifier: 0x35bf8022 Device Boot Start End Blocks Id System /dev/vdb1 2048 209715199 104856576 83 Linux
3. 格式化 mkfs -t ext3 或者 mkfs.ext3
[root@yzb-centos72-3 ~]# mkfs -t ext3 /dev/vdb1 mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 6553600 inodes, 26214144 blocks 1310707 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 800 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done [root@yzb-centos72-3 ~]#
4. 挂载
先在根目录建data
[root@yzb-centos72-3 /]# mkdir data
然后挂载
mount /dev/vdb1 /data
查看挂载后的目录
[root@yzb-centos72-3 /]# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/vda2 ext4 25G 3.1G 21G 14% / devtmpfs devtmpfs 3.9G 0 3.9G 0% /dev tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 3.9G 57M 3.8G 2% /run tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup tmpfs tmpfs 783M 0 783M 0% /run/user/0 /dev/vdb1 ext3 99G 60M 94G 1% /data
将挂载持久化到文件，开机自动挂载
/etc/fstab
vi /etc/fstab
# # /etc/fstab # Created by anaconda on Mon Jan 2 22:58:53 2017 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # UUID=381f5199-12a4-4d44-91af-be015a752145 / ext4 defaults 1 1 UUID=4b0d629d-79d8-43e3-82bd-8a7b98fcfb75 swap swap defaults 0 0 /dev/vdb1 /data ext3 defaults 1 1
