正文
一、查看带挂载的硬盘
[root@client ~]# fdisk -l Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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: 0x000bb9c1 Device Boot Start End Blocks Id System /dev/vda1 * 2048 83886046 41941999+ 83 Linux Disk /dev/vdb: 1073.7 GB, 1073741824000 bytes, 2097152000 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
二、创建分区
[root@client ~]# 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 0x5c7c69d5. 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): 1 First sector (2048-2097151999, default 2048): 2048 Last sector, +sectors or +size{K,M,G} (2048-2097151999, default 2097151999): Using default value 2097151999 Partition 1 of type Linux and of size 1000 GiB is set Command (m for help): wq The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
三、创建文件系统（格式化分区）
[root@client ~]# fdisk -l Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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: 0x000bb9c1 Device Boot Start End Blocks Id System /dev/vda1 * 2048 83886046 41941999+ 83 Linux Disk /dev/vdb: 1073.7 GB, 1073741824000 bytes, 2097152000 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: 0x5c7c69d5 Device Boot Start End Blocks Id System /dev/vdb1 2048 2097151999 1048574976 83 Linux [root@client ~]# mkfs.ext4 /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 65536000 inodes, 262143744 blocks 13107187 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2409627648 8000 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 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done
四、将文件系统挂载到目录
mount /dev/vdb1 /mnt
echo $( blkid /dev/vdb1 | awk '{print $2}' | sed 's/\"//g' ) /mnt ext4 defaults 0 0 >> /etc/fstab
PS: 这条命令值得好好品味品位，blkid、awk、sed、管道符|、命令替换$( )、标准输出重定向>> 这些进阶 linux 命令 都使用到了。
