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Môi trường thực hiện: Centos 7 ổ cứng mới = 80GB mount point = /net |
kiểm tra ổ đĩa mới thêm bằng fdisk -l
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[root@localhost ~]# fdisk -l Disk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 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: 0x000b1107 Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 41943039 19921920 8e Linux LVM Disk /dev/sdb: 85.9 GB, 85899345920 bytes, 167772160 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/mapper/centos-root: 18.2 GB, 18249416704 bytes, 35643392 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/mapper/centos-swap: 2147 MB, 2147483648 bytes, 4194304 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@localhost ~]# |
Thấy phần ổ đĩa mới:
Disk /dev/sdb: 85.9 GB, 85899345920 bytes, 167772160 sectors
gõ: fdisk /dev/sdb
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[root@localhost ~]# fdisk /dev/sdb 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 0xa07e2d9e. 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): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended Select (default p): p Partition number (1-4, default 1): First sector (2048-167772159, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-167772159, default 167772159): Using default value 167772159 Partition 1 of type Linux and of size 80 GiB is set Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. [root@localhost ~]# |
Đã tạo xong phân vùng, tiến hành format sang định dạng ext4, lưu ý, phân vùng mới tạo từ sdb ở trên giờ là sdb1
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[root@localhost ~]# mkfs -t ext4 /dev/sdb1 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 5242880 inodes, 20971264 blocks 1048563 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2168455168 640 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 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done |
Giờ ổ đĩa đã sẵn sàng, chỉ cần mount vào đâu đó thì chúng đã sẵn sàng sử dụng, ví dụ mount vào /net1
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[root@localhost ~]# mount /dev/sdb1 /net1/ [root@localhost ~]# [root@localhost ~]# [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 17G 1.5G 16G 9% / devtmpfs 478M 0 478M 0% /dev tmpfs 489M 0 489M 0% /dev/shm tmpfs 489M 6.7M 482M 2% /run tmpfs 489M 0 489M 0% /sys/fs/cgroup /dev/sda1 1014M 125M 890M 13% /boot tmpfs 98M 0 98M 0% /run/user/0 /dev/sdb1 79G 57M 75G 1% /net1 |
Đã thêm thành công
Để tự động mount ổ khi reboot, có thể thao tác bằng nhiều cách:
– Chạy tự động lệnh mount /dev/sdb1 /net1/ mỗi lần khởi động
– thêm vào /etc/fstab
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/dev/sdb1 /net1 ext4 noauto 0 0 |