来一发CentOS磁盘分区增加删除

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历程简述
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• --增加磁盘
  
• #fdisk-l--检察磁盘情形
  
• #fdisk/dev/sdb--为/dev/sdb装备分区
  
• n--增加分区
  
• p/e--主分区/逻辑分区
  
• w--保留加入
  
• #mkdir/data--创立挂载目次
  
• #mkfs.ext3/dev/sdb--格局化磁盘为ext3文件体系
  
• #fdisk-l--再次检察磁盘情形
  
• #mount/dev/sdb/data--挂载磁盘到创立的挂载目次下
  
• #vi/etc/fstab--修正启动主动挂载项
  
• /dev/sdb/dataext3defaults00
  

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申明
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1、以上操纵为精华精辟总结，若如能够看懂，上面内容无需扫瞄；
2、以下复杂枚举两例，细化操纵历程。

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举例1：增加1块90G磁盘，将其分为1个分区

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检察磁盘情形
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• [root@hyldb/]#fdisk-l
  
• 
  
• Disk/dev/sda:128.8GB,128849018880bytes
  
• 255heads,63sectors/track,15665cylinders
  
• Units=cylindersof16065*512=8225280bytes
  
• 
  
• DeviceBootStartEndBlocksIdSystem
  
• /dev/sda1*164514048+83Linux
  
• /dev/sda265586419296582Linuxswap/Solaris
  
• /dev/sda358715665121122067+83Linux
  
• 
  
• Disk/dev/sdb:96.6GB,96636764160bytes
  
• 255heads,63sectors/track,11748cylinders
  
• Units=cylindersof16065*512=8225280bytes
  
• 
  
• Disk/dev/sdbdoesntcontainavalidpartitiontable
  

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磁盘分区
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• [root@hyldb/]#fdisk/dev/sdb
  
• DevicecontainsneitheravalidDOSpartitiontable,norSun,SGIorOSFdisklabel
  
• BuildinganewDOSdisklabel.Changeswillremaininmemoryonly,
  
• untilyoudecidetowritethem.Afterthat,ofcourse,theprevious
  
• contentwontberecoverable.
  
• 
  
• Thenumberofcylindersforthisdiskissetto11748.
  
• Thereisnothingwrongwiththat,butthisislargerthan1024,
  
• andcouldincertainsetupscauseproblemswith:
  
• 1)softwarethatrunsatboottime(e.g.,oldversionsofLILO)
  
• 2)bootingandpartitioningsoftwarefromotherOSs
  
• (e.g.,DOSFDISK,OS/2FDISK)
  
• Warning:invalidflag0x0000ofpartitiontable4willbecorrectedbyw(rite)
  
• 
  
• Command(mforhelp):m
  
• --输出m检察匡助：指令提醒
  
• Commandaction
  
• atoggleabootableflag
  
• beditbsddisklabel
  
• ctogglethedoscompatibilityflag
  
• ddeleteapartition
  
• llistknownpartitiontypes
  
• mprintthismenu
  
• naddanewpartition
  
• ocreateanewemptyDOSpartitiontable
  
• pprintthepartitiontable
  
• qquitwithoutsavingchanges
  
• screateanewemptySundisklabel
  
• tchangeapartitionssystemid
  
• uchangedisplay/entryunits
  
• vverifythepartitiontable
  
• wwritetabletodiskandexit
  
• xextrafunctionality(expertsonly)
  
• 
  
• Command(mforhelp):n
  
• --增加新分区
  
• Commandaction
  
• eextended
  
• pprimarypartition(1-4)
  
• p
  
• --输出p增加主分区
  
• Partitionnumber(1-4):1
  
• --填写分区号
  
• Firstcylinder(1-11748,default1):
  
• Usingdefaultvalue1
  
• Lastcylinderor+sizeor+sizeMor+sizeK(1-11748,default11748):
  
• Usingdefaultvalue11748
  
• 
  
• Command(mforhelp):p
  
• --打印分区列表
  
• Disk/dev/sdb:96.6GB,96636764160bytes
  
• 255heads,63sectors/track,11748cylinders
  
• Units=cylindersof16065*512=8225280bytes
  
• 
  
• DeviceBootStartEndBlocksIdSystem
  
• /dev/sdb111174894365778+83Linux
  
• 
  
• Command(mforhelp):w
  
• --保留加入
  
• Thepartitiontablehasbeenaltered!
  
• 
  
• Callingioctl()tore-readpartitiontable.
  
• Syncingdisks.
  

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创立挂载目次
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• [root@hyldb/]#mkdir/data
  

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格局化磁盘
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<olstart="1"style="padding-right:0px;padding-left:0px;border:none;list-style-position:initial;list-style-image:initial;color:rgb(92,92,92);margin:0px0px1px45px!important;background-color:rgb(255,255,255);"><liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">[root@hyldb/]#mkfs.ext3/dev/sdb<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">--格局化sdb1，格局成ext3格局文件体系<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">mke2fs1.39(29-May-2006)<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">/dev/sdbisentiredevice,notjustonepartition!<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Proceedanyway?(y,n)y<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">Filesystemlabel=<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">OStype:Linux<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">Blocksize=4096(log=2)<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Fragmentsize=4096(log=2)<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">11796480inodes,23592960blocks<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">1179648blocks(5.00%)reservedforthesuperuser<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">Firstdatablock=0<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Maximumfilesystemblocks=4294967296<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">720blockgroups<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">32768blockspergroup,32768fragmentspergroup<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">16384inodespergroup<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Superblockbackupsstoredonblocks:<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">32768,98304,163840,229376,294912,819200,884736,1605632,2654208,<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">4096000,7962624,11239424,20480000<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);"><liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;"><listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">Writinginodetables:done<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Creatingjournal(32768blocks):done<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">Writingsuperblocksandfilesystemaccountinginformation:done<liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;"><listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);"><liclass="alt"style="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;color:inherit;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;">Thisfilesystemwillbeautomaticallycheckedevery33mountsor<listyle="border-style:nonenonenonesolid;border-left-width:3px;border-left-color:rgb(108,226,108);list-style:decimal-leading-zerooutside;line-height:18px;margin:0px!important;padding:0px3px0px10px!important;background-color:rgb(248,248,248);">180days,whichevercomesfirst.Usetune2fs-cor-itooverride.

一些显而易见的小错误还是用vi改正比较方便。以后的大一点的程序就得在Linux下调试了，因为有的头文件在VC里面说找不到。?

掌握在Linux系统中安装软件，在安装Linux工具盘后大致日常所需的软件都会有,一般网络提供下载的软件都会有安装说明。

把这个问题放在其他Linux社区请求帮助也是一种选择。如果Linux得不到答案，请不要以为我们觉得无法帮助你。有时只是看到你问题的人不知道答案罢了。这时换一个社区是不错的选择。

用户下达的命令解释给系统去执行，并将系统传回的信息再次解释给用户，估shell也称为命令解释器，有关命令的学习可参考论坛相关文章，精通英文也是学习Linux的关键。

有疑问前，知识学习前，先用搜索。

Linux是参照Unix思想设计的，理解掌握Linux必须按照Unix思维来进行。思想性的转变比暂时性的技术提高更有用,因为他能帮助你加快学习速度。