【Ubuntu】fdisk mkfs fstab

// fdisk -l

[email protected]:/# fdisk -l

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes

255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors

Units = 扇区 of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00071c40

设备 启动      起点          终点     块数   Id  系统

/dev/sda1   *        2048  3781251071  1890624512   83  Linux

/dev/sda2      3781253118  3907028991    62887937    5  扩展

/dev/sda5      3781253120  3907028991    62887936   82  Linux 交换 / Solaris

Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes

255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors

Units = 扇区 of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk /dev/sdb doesn‘t contain a valid partition table

// fdisk /dev/sdb

[email protected]:/# fdisk /dev/sdb

Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0x2c2a1fd8.

Changes will remain in memory only, until you decide to write them.

After that, of course, the previous content won‘t be recoverable.

Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)

WARNING: The size of this disk is 3.0 TB (3000592982016 bytes).

DOS partition table format can not be used on drives for volumes

larger than (2199023255040 bytes) for 512-byte sectors. Use parted(1) and GUID

partition table format (GPT).

命令(输入 m 获取帮助)： p

Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes

255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors

Units = 扇区 of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x2c2a1fd8

设备 启动      起点          终点     块数   Id  系统

命令(输入 m 获取帮助)： d

No partition is defined yet!

命令(输入 m 获取帮助)： n

Partition type:

p   primary (0 primary, 0 extended, 4 free)

e   extended

Select (default p): p

分区号 (1-4，默认为 1)： 1

起始 sector (2048-4294967295，默认为 2048)：

将使用默认值 2048

Last sector, +扇区 or +size{K,M,G} (2048-4294967294，默认为 4294967294)：

将使用默认值 4294967294

命令(输入 m 获取帮助)： w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[email protected]:/#

// mkfs.ext4 /dev/sdb1

[email protected]:/# mkfs.ext4 /dev/sdb1

mke2fs 1.42.9 (4-Feb-2014)

文件系统标签=

OS type: Linux

块大小=4096 (log=2)

分块大小=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

134217728 inodes, 536870655 blocks

26843532 blocks (5.00%) reserved for the super user

第一个数据块=0

Maximum filesystem blocks=4294967296

16384 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, 71663616, 78675968,

102400000, 214990848, 512000000

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

[email protected]:/#

// vi /etc/fstab

# this is another phy disk

/dev/sdb1       /mnt/data1      ext4    defaults        0       0

# swap was on /dev/sda5 during installation

UUID=8ea4b4d6-cc01-4bc5-be5d-045538cf0891 none            swap    sw              0       0