如何給linux添加一塊硬碟

如何給linux添加一塊硬碟 overview：添加一塊15G的硬碟  170  fdisk -l          列出所有硬碟   171  sudo pvcreate /dev/sdb      ----------sdb為新添加的物理盤，準備供lvm使用   172  sudo vgcreate 12c /dev/sdb    -------------------建立名為12c的卷組   174  sudo lvcreate -l 100%FREE -n 12clv 12c   ----------------------------建立名為12lv的邏輯卷    175  sudo mkfs -t ext4 /dev/12c/12clv     --------------------------建立檔案系統   176  sudo mkdir /12c      ----------------------------建立掛載點   177  sudo vi /etc/fstab   -------------------------設定掛載的選項，掛載點                                178  sudo mount /12c    -------------------------- 掛載這個檔案系統 eg：[root@localhost ~]# fdisk -lDisk /dev/sda: 14.3 GB, 14343061504 bytes255 heads, 63 sectors/track, 1743 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes   Device Boot      Start         End      Blocks   Id  System/dev/sda1   *           1          13      104391   83  Linux/dev/sda2              14        1743    13896225   8e  Linux LVMDisk /dev/sdb: 16.1 GB, 16106127360 bytes255 heads, 63 sectors/track, 1958 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/sdb doesn't contain a valid partition tableDisk /dev/dm-0: 13.1 GB, 13153337344 bytes255 heads, 63 sectors/track, 1599 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/dm-0 doesn't contain a valid partition tableDisk /dev/dm-1: 1073 MB, 1073741824 bytes255 heads, 63 sectors/track, 130 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk /dev/dm-1 doesn't contain a valid partition table [root@localhost ~]# sudo pvcreate /dev/sdb  Writing physical volume data to disk "/dev/sdb"  Physical volume "/dev/sdb" successfully created [root@localhost ~]# sudo vgcreate 12c /dev/sdb  Volume group "12c" successfully created [root@localhost ~]# sudo lvcreate -l 100%FREE -n 12clv  Path required for Logical Volume "12clv"  Please provide a volume group name  Run `lvcreate --help' for more information. [root@localhost ~]# sudo lvcreate -l 100%FREE -n 12clv 12c  Logical volume "12clv" created [root@localhost ~]# sudo mkfs -t ext4 /dev/12c/12clvmke4fs 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 blocks983040 inodes, 3931136 blocks196556 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=4026531840120 block groups32768 blocks per group, 32768 fragments per group8192 inodes per groupSuperblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208Writing inode tables: done                            Creating journal (32768 blocks): doneWriting superblocks and filesystem accounting information: doneThis filesystem will be automatically checked every 22 mounts or180 days, whichever comes first.  Use tune4fs -c or -i to override. [root@localhost ~]# sudo mkdir /12c [root@localhost ~]# sudo vi /etc/fstab/dev/VolGroup00/LogVol00 /                       ext3    defaults        1 1LABEL=/boot             /boot                   ext3    defaults        1 2tmpfs                   /dev/shm                tmpfs   defaults        0 0devpts                  /dev/pts                devpts  gid=5,mode=620  0 0sysfs                   /sys                    sysfs   defaults        0 0proc                    /proc                   proc    defaults        0 0/dev/VolGroup00/LogVol01 swap                    swap    defaults        0 0/dev/12c/12clv          /12c                     ext4    defaults       0 0~~ "/etc/fstab" 8L, 610C written [root@localhost ~]# sudo mount /12c [root@localhost ~]# cd /[root@localhost /]# lltotal 166drwxr-xr-x   3 root root  4096 Jun 26 07:26 12cdrwxr-xr-x   3 root root  4096 Jun 20 00:04 bindrwxr-xr-x   4 root root  1024 Jun 19 10:34 bootdrwxr-xr-x  13 root root  3900 Jun 26 07:25 devdrwxr-xr-x  98 root root 12288 Jun 26 07:30 etcdrwxr-xr-x   4 root root  4096 Jun 26 06:29 homedrwxr-xr-x  11 root root  4096 Jun 20 00:04 libdrwxr-xr-x   9 root root  4096 Jun 20 00:04 lib64drwx------   2 root root 16384 Jun 19 10:23 lost+founddrwxr-xr-x   3 root root  4096 Jun 26 07:18 mediadrwxr-xr-x   2 root root     0 Jun 26 07:18 miscdrwxr-xr-x   2 root root  4096 Feb 16  2010 mntdrwxr-xr-x   2 root root     0 Jun 26 07:18 netdrwxr-xr-x   2 root root  4096 Feb 16  2010 optdr-xr-xr-x 123 root root     0 Jun 26 07:17 procdrwxr-x---  15 root root  4096 Jun 26 06:46 rootdrwxr-xr-x   2 root root 12288 Jun 20 00:04 sbindrwxr-xr-x   2 root root  4096 Jun 19 10:23 selinuxdrwxr-xr-x   2 root root  4096 Feb 16  2010 srvdrwxr-xr-x  13 root root     0 Jun 26 07:17 sysdrwxr-xr-x   3 root root  4096 Jun 19 10:31 tftpbootdrwxrwxrwt   8 root root  4096 Jun 26 07:19 tmpdrwxr-xr-x  15 root root  4096 Jun 19 10:26 usrdrwxr-xr-x  21 root root  4096 Jun 19 10:37 var [root@localhost /]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/mapper/VolGroup00-LogVol00                       12G  8.7G  2.6G  78% //dev/sda1              99M   24M   71M  25% /boottmpfs                 244M     0  244M   0% /dev/shm/dev/mapper/12c-12clv                       15G  166M   14G   2% /12c [root@localhost /]# cd /12c [root@localhost 12c]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/mapper/VolGroup00-LogVol00                       12G  8.7G  2.6G  78% //dev/sda1              99M   24M   71M  25% /boottmpfs                 244M     0  244M   0% /dev/shm/dev/mapper/12c-12clv                       15G  166M   14G   2% /12c[root@localhost 12c]#到此成功添加一塊硬碟，並建立檔案系統