爱站程序员基地1 查看存储是否已经分配
[root@localhost]# fdisk -l
|
Disk /dev/sda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0002f978
Device Boot Start End Blocks Id System /dev/sda1 * 1 131 1048576 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 131 2611 19921920 8e Linux LVM
Disk /dev/sdb: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 |
2 对/dev/sdb分区
[root@localhost home]# 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 0x2ae1db89. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won\’t be recoverable.
Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-652, default 1): <回车> Using default value 1 Last cylinder, +cylinders or +size{K,M,G} (1-652, default 652): <回车> Using default value 652
Command (m for help): w The partition table has been altered!
Calling ioctl() to re-read partition table. Syncing disks. |
3 查看分区
[root@localhost]# fdisk -l
|
Disk /dev/sda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0002f978
Device Boot Start End Blocks Id System /dev/sda1 * 1 131 1048576 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 131 2611 19921920 8e Linux LVM
Disk /dev/sdb: 5368 MB, 5368709120 bytes 255 heads, 63 sectors/track, 652 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x2ae1db89
Device Boot Start End Blocks Id System /dev/sdb1 1 652 5237158+ 83 Linux |
4 格式化分区
[root@localhost]# mkfs -t ext4 /dev/sdb1
|
mke2fs 1.41.12 (17-May-2010) 文件系统标签= 操作系统:Linux 块大小=4096 (log=2) 分块大小=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 327680 inodes, 1309289 blocks 65464 blocks (5.00%) reserved for the super user 第一个数据块=0 Maximum filesystem blocks=1342177280 40 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
正在写入inode表: 完成 Creating journal (32768 blocks): 完成 Writing superblocks and filesystem accounting information: 完成
This filesystem will be automatically checked every 28 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. |
5 挂载分区
[root@localhost]# mount /dev/sda1 /opt
6 查看分区是否挂载成功
[root@localhost]# df -h
|
文件系统 容量 已用 可用 已用%% 挂载点 /dev/mapper/VolGroup-lv_root 17G 5.4G 11G 34% / tmpfs 932M 100K 932M 1% /dev/shm /dev/sda1 1008M 56M 901M 6% /boot /dev/sdb1 5.0G 139M 4.6G 3% /opt |
7 配置自动挂载
配置文件，在最下面添加以下信息：
[root@localhost]# vi /etc/fstab
|
/dev/sdb1 /opt ext4 defaults 0 0 |
