【Ubuntu】fdisk mkfs fstab

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　　// fdisk -l
root@wode022:/# 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
root@wode022:/# 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.
root@wode022:/#
　　

　　// mkfs.ext4 /dev/sdb1
root@wode022:/# 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


root@wode022:/#
　　

　　// 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