实验环境: Citrix虚拟化, RHEL6.4系统环境本文目的: 熟悉Linux的基本磁盘分区、格式化、目录挂载。
1.显示当前主机目录2.磁盘分区3.磁盘格式化4.挂载目录
1. 显示当前主机目录
命令df -h[root@localhost ~]# df -hFilesystem Size Used Avail Use% Mounted on/dev/mapper/VolGroup-lv_root 26G 2.9G 22G 13% /tmpfs 1.9G 0 1.9G 0% /dev/shm/dev/xvda1 485M 32M 428M 7% /boot
2. 磁盘分区
2.1 显示机器当前的磁盘:
命令fdisk -l[root@localhost ~]# fdisk -l /dev/xvdb
Disk /dev/xvdb: 53.7 GB, 53687091200 bytes255 heads, 63 sectors/track, 6527 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000
注:这里知道新增磁盘为/dev/xvdb,就直接指定了,缩减显示篇幅。
2.2 fdisk 分区 /dev/xvdb:
fdisk /dev/xvdb 根据帮助提示分区,这里是把/dev/xvdb分成一个区.[root@localhost ~]# fdisk /dev/xvdbDevice contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel with disk identifier 0x0adfd119.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: DOS-compatible mode is deprecated. It’s strongly recommended to switch off the mode (command ‘c’) and change display units to sectors (command ‘u’).
Command (m for help): mCommand action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition 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): nCommand action e extended p primary partition (1-4)pPartition number (1-4): 1First cylinder (1-6527, default 1): Using default value 1Last cylinder, +cylinders or +size{K,M,G} (1-6527, default 6527): Using default value 6527
Command (m for help): p
Disk /dev/xvdb: 53.7 GB, 53687091200 bytes255 heads, 63 sectors/track, 6527 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x0adfd119
Device Boot Start End Blocks Id System/dev/xvdb1 1 6527 52428096 83 Linux
Command (m for help): wThe partition table has been altered!
Calling ioctl() to re-read partition table.Syncing disks.
3. 磁盘格式化
命令mkfs.ext4 /dev/xvdb1分区为ext4的文件系统格式。[root@localhost ~]# mkfs.ext4 /dev/xvdb1 mke2fs 1.41.12 (17-May-2010)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)Stride=0 blocks, Stripe width=0 blocks3276800 inodes, 13107024 blocks655351 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=4294967296400 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424
Writing inode tables: done Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 28 mounts or180 days, whichever comes first. Use tune2fs -c or -i to override.
4.挂载目录
4.1 手工挂载
新建目录/u01mkdir -p /u01挂载设备到目录/u01mount /dev/xvdb1 /u01[root@localhost ~]# mkdir -p /u01[root@localhost ~]# mount /dev/xvdb1 /u01
4.2 开机自动挂载
在乎的应该是沿途的风景以及看风景的心情。
