Linux下添加新磁盘并挂载到指定目录的方法

1、在 Linux 系统中添加硬盘，并挂载到已有的目录以如下为例：环境 说明：Linux RedHat4 Updata4 ,加载 6块 SAS硬盘，做一个 Raid5.挂载到 /home/trsmanager 目录，要求保证目录中原有数据完好已经建好的 TRS 全文检索，放在 /home/trsmanager 中，想要将扩展的硬盘空间挂载到 trsmanager 文件夹上，并保证全文检索正常。方法：将添加上的硬盘使用 Linux 的 fdisk 制作一个文件系统，挂载到已有目录下。rootTRS01 home# lslost+found trsmanagerrootTRS01 home# lslo

2、st+found trsmanagerrootTRS01 home# cd t*rootTRS01 trsmanager# lstrshomerootTRS01 trsmanager# cd .rootTRS01 home# tar cvf trsmanager.tar trsmanager #将本来的文件夹 trsmanager打包保存。（后续将原来的 trsmanager 清空，挂载建立好的文件系统，然后将打包的东西解 压到这个目录中，还原 trsmanager 文件夹中的文件） 。rootTRS01 home# ls #ls 查看并确定打包完成lost+found trsmanager

3、trsmanager.tarrootTRS01 home# rm -rf trsmanager # 删除 trsmanager 文件夹rootTRS01 home# lslost+found trsmanager.tarrootTRS01 home#rootTRS01 home#rootTRS01 /# fdisk - l # 查看 raid 后的硬盘Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes255 heads, 32 sectors/track, 35132 cylindersUnits = cylinders of 8160 * 5

4、12 = 4177920 bytesDevice Boot Start/dev/cciss/c0d0p1 */dev/cciss/c0d0p2/dev/cciss/c0d0p3/dev/cciss/c0d0p4/dev/cciss/c0d0p5/dev/cciss/c0d0p6/dev/cciss/c0d0p712571048544 83 Linux258539720971200 83 Linux5398105372097120083Linux10538351321003476005Extended10538156772097118483Linux15678208172097118483Lin

5、ux2081822873838846483LinuxEnd Blocks Id System/dev/cciss/c0d0p8/dev/cciss/c0d0p922874249298388464 82 Linux swap2493035132 41628224 83 LinuxDisk /dev/cciss/c0d1: 733.9 GB, 733910294528 bytes255 heads, 32 sectors/track, 175664 cyli ndersraid后的硬盘Units = cyli nders of 8160 * 512 = 4177920 bytes #Device

6、Boot Start End Blocks Id SystemraidrootTRS01 /# fdisk /dev/cciss/c0d1 # 此处的 /dev/cciss/c0d1即为上面查看的后的Disk名称The nu mber of cyli nders for this disk is set to 175664.There is nothing wrong with that, but this is larger tha n 1024,and could in certa in setups cause problems with:1) software that runs at

7、 boot time (e.g., old versions of LILO)2) booti ng and partiti oning software from other OSs(e.g., DOS FDISK, OS/2 FDISK)Comma nd (m for help): m#此处输入 m,查看可使用的命令Comma nd actiona toggle a bootable flagb edit bsd disklabelc toggle the dos compatibility flagd delete a partiti onl list known partiti on

8、typesm print this menun add a new partiti ono create a new empty DOS partitio n tablep print the partition tableq quit without savi ng cha ngess create a new empty Sun disklabelt cha nge a partiti ons system idu cha nge display/e ntry un itsv verify the partiti on tablew write table to disk and exit

9、x extra function ality (experts only)Comma nd (m for help): n #输入n，新建一个磁盘分区Comma nd actione exte ndedp primary partiti on (1-4)pPartition number (1-4): 1#输入1，即为主磁盘分区First cyli nder (1-175664, default 1): 1 #输入 1回车Last cyli nder or +size or +sizeM or +sizeK (1-175664, default 175664): #Using default

10、value 175664Comma nd (m for help): p # print the partiti on tableDisk /dev/cciss/c0d1: 733.9 GB, 733910294528 bytes255 heads, 32 sectors/track, 175664 cyli ndersUnits = cyli nders of 8160 * 512 = 4177920 bytesDevice Boot Start/dev/cciss/c0d1p11End Blocks Id System175664 716709104 83 LinuxComma nd (m

11、 for help): w #写保存并退出The partiti on table has bee n altered!Calli ng ioctl() to re-read partiti on table.Syncing disks.rootTRS01 /# fdisk - l # 查看是否已建好逻辑磁盘Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes255 heads, 32 sectors/track, 35132 cyli ndersUnits = cyli nders of 8160 * 512 = 4177920 bytes/d

12、ev/cciss/c0d0p1 *12571048544 83 Linux/dev/cciss/c0d0p2258539720971200 83 Linux/dev/cciss/c0d0p35398105372097120083Li nux/dev/cciss/c0d0p410538351321003476005Exte nded/dev/cciss/c0d0p510538156772097118483Linux/dev/cciss/c0d0p615678208172097118483Linux/dev/cciss/c0d0p72081822873838846483Li nux/dev/cci

13、ss/c0d0p82287424929838846482Linux swap/dev/cciss/c0d0p924930351324162822483LinuxDevice Boot StartEnd Blocks Id SystemDisk /dev/cciss/c0d1: 733.9 GB, 733910294528 bytes255 heads, 32 sectors/track, 175664 cyli ndersUnits = cyli nders of 8160 * 512 = 4177920 bytesDevice Boot Start End Blocks Id System

14、/dev/cciss/c0d1p11175664 716709104 83 Lin ux #建立完成rootTRS01 /#rootTRS01 home# Islost+fo und trsma nager.tartrsma nagerrootTRS01 home# mkdir trsmanager # 在 /home 目录下新建一个文件夹rootTRS01 home# lslost+fo und trsma nager trsma nager.tarrootTRS01 home# fdisk -lDisk /dev/cciss/cOdO: 146.7 GB, 146778685440 byt

15、es255 heads, 32 sectors/track, 35132 cyli ndersUnits = cyli nders of 8160 * 512 = 4177920 bytes/dev/cciss/c0d0p1 *12571048544 83 Linux/dev/cciss/c0d0p2258539720971200 83 Linux/dev/cciss/c0d0p35398105372097120083Li nux/dev/cciss/c0d0p410538351321003476005Exte nded/dev/cciss/c0d0p510538156772097118483

16、Linux/dev/cciss/c0d0p615678208172097118483Linux/dev/cciss/c0d0p72081822873838846483Li nux/dev/cciss/c0d0p82287424929838846482Linux swap/dev/cciss/c0d0p924930351324162822483LinuxDevice Boot StartEnd Blocks Id SystemDisk /dev/cciss/c0d1: 733.9 GB, 733910294528 bytes255 heads, 32 sectors/track, 175664

17、cyli ndersUnits = cyli nders of 8160 * 512 = 4177920 bytesDevice Boot Start End Blocks Id System /dev/cciss/c0d1p11175664 716709104 83 LinuxrootTRS01 home# mkfs.ext3 /dev/cciss/c0d1p1 #建立文件系统mke2fs 1.35 (28-Feb-2004)Filesystem label=OS type: Li nuxBlock size=4096 (log=2)Fragme nt size=4096 (log=2)89

18、604096 ino des, 179177276 blocks8958863 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=42949672965469 block groups32768 blocks per group, 32768 fragme nts per group16384 ino des per groupSuperblock backups stored on blocks:32768, 98304, 163840, 229376, 294912,

19、819200, 884736, 1605632, 2654208,4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000Writing inode tables: doneCreating journal (8192 blocks): doneWriting superblocks and filesystem accounting information: done#以上 done 会自动完成This filesystem will be automatically checked every

20、 26 mounts or180 days, whichever comes first. Use tune2fs -c or -i to override.rootTRS01 /# fdisk -lDisk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes255 heads, 32 sectors/track, 35132 cylindersUnits = cylinders of 8160 * 512 = 4177920 bytesDevice BootStartEnd Blocks Id System/dev/cciss/c0d0p1 *1257

21、 1048544 83Linux/dev/cciss/c0d0p2258539720971200 83 Linux/dev/cciss/c0d0p35398105372097120083Linux/dev/cciss/c0d0p410538351321003476005Extended/dev/cciss/c0d0p510538156772097118483Linux/dev/cciss/c0d0p615678208172097118483Linux/dev/cciss/c0d0p72081822873838846483Linux/dev/cciss/c0d0p82287424929838846482Linux swap/dev/cciss/c0d0p924930351324162822483LinuxDisk /dev/cciss/c0d1: 733.9 GB, 733910294528 bytes255 heads, 32 sectors/track, 175664 cylindersUnits = cylinders of 8160 * 512 =