添加一塊硬盤

#?fdisk?-l Disk?/dev/vdb:?53.7?GB,?53687091200?bytes 16?heads,?63?sectors/track,?104025?cylinders Units?=?cylinders?of?1008?*?512?=?516096?bytes Sector?size?(logical/physical):?512?bytes?/?512?bytes I/O?size?(minimum/optimal):?512?bytes?/?512?bytes Disk?identifier:?0x00000000

用fdisk命令進入分區界面

#?fdisk?/dev/vdb Device?contains?neither?a?valid?DOS?partition?table,?nor?Sun,?SGI?or?OSF?disklabel Building?a?new?DOS?disklabel?with?disk?identifier?0xb5f18769. 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?toswitch?off?the?mode?(command?'c')?and?change?display?units?tosectors?(command?'u'). Command?(m?for?help):

Command?(m?for?help):?n????//?輸入n新建一個分區 Command?actione???extended????//e是擴展分區p???primary?partition?(1-4)????//p是主分區 p???//選擇p Partition?number?(1-4):?1?????//分區號 First?cylinder?(1-104025,?default?1):?????//默認回車就行 Using?default?value?1 Last?cylinder,?+cylinders?or?+size{K,M,G}?(1-104025,?default?104025):?25600M??//可以輸入具體要分多少空間給這個分區，這里我分25G參考：//Supported:?10^N:?KB?(KiloByte),?MB?(MegaByte),?GB?(GigaByte)2^N:?K??(KibiByte),?M?(MebiByte),?G??(GibiByte)

分第二個分區

Command?(m?for?help):?n Command?actione???extendedp???primary?partition?(1-4) p Partition?number?(1-4):?2 First?cylinder?(52015-104025,?default?52015):? Using?default?value?52015 Last?cylinder,?+cylinders?or?+size{K,M,G}?(52015-104025,?default?104025):????????//這里直接回車默認所有空間 Using?default?value?104025

查看剛剛分的2個區。可以看到vdb1和vdb2

Command?(m?for?help):?p????//輸入p查看分區 Disk?/dev/vdb:?53.7?GB,?53687091200?bytes 16?heads,?63?sectors/track,?104025?cylinders Units?=?cylinders?of?1008?*?512?=?516096?bytes Sector?size?(logical/physical):?512?bytes?/?512?bytes I/O?size?(minimum/optimal):?512?bytes?/?512?bytes Disk?identifier:?0xb7a8f045Device?Boot??????Start?????????End??????Blocks???Id??System /dev/vdb1???????????????1???????52014????26215024+??83??Linux /dev/vdb2???????????52015??????104025????26213544???83??Linux

保存分區退出（一定要保存，不然得重來了。）

Command?(m?for?help):?w????//輸入w保存退出 The?partition?table?has?been?altered! Calling?ioctl()?to?re-read?partition?table. Syncing?disks.

查看分好的分區

#?fdisk?-l Disk?/dev/vdb:?53.7?GB,?53687091200?bytes 16?heads,?63?sectors/track,?104025?cylinders Units?=?cylinders?of?1008?*?512?=?516096?bytes Sector?size?(logical/physical):?512?bytes?/?512?bytes I/O?size?(minimum/optimal):?512?bytes?/?512?bytes Disk?identifier:?0xb7a8f045Device?Boot??????Start?????????End??????Blocks???Id??System /dev/vdb1???????????????1???????52014????26215024+??83??Linux /dev/vdb2???????????52015??????104025????26213544???83??Linux

格式化分區

#?mkfs.ext3?/dev/vdb1#?mkfs.ext3?/dev/vdb2

創建掛載文件夾

#?mkdir?/vdb1?/vdb2

掛載分區到文件夾

#?mount?/dev/vdb1?/vdb1 #?mount?/dev/vdb2?/vdb2

分區完成，數據寫入掛載的文件夾就寫入到硬盤了。

但是重啟之后linux不會自動掛載，需要在/etc/fstab文件添加后面2條。保存之后下次重啟就會自動掛載了。

#?vim?/etc/fstab tmpfs??????????/dev/shm????????tmpfs???defaults????????0?0 devpts??????????/dev/pts????????devpts???gid=5,mode=620????????0?0 sysfs??????????/sys??????????sysfs???defaults????????0?0 proc???????????/proc???????????proc???defaults????????0?0 /dev/vdb1????????/vdb1??????????ext3???defaults????????1?2 /dev/vdb2????????/vdb2??????????ext3???defaults????????1?2

另外：可通過cat /proc/partitions 查看分區信息

[root@myslaver?~]#?cat?/proc/partitions major????minor??#blocks?name252????????0???52428800?vda252????????1?????512000?vda1252????????2????7875584?vda2252???????16???52428800?vdb252???????17???26215024?vdb1252???????18???26213544?vdb2253????????0????7036928?dm-0253????????1?????835584?dm-1

轉載于:https://blog.51cto.com/kurolz/1873063

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