linux CentOS7 磁盘分区fdisk 、df 、du、parted 命令实例
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linux CentOS7 磁盘分区fdisk 、df 、du、parted 命令实例
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一、 df命令
分區(qū)查看工具:
1. df
[fxq@vm_46_188_centos?~]$?df Filesystem?????1K-blocks????Used?Available?Use%?Mounted?on /dev/vda1???????20510332?4844740??14617076??25%?/ devtmpfs??????????499348???????0????499348???0%?/dev tmpfs?????????????508452???????0????508452???0%?/dev/shm tmpfs?????????????508452???12660????495792???3%?/run tmpfs?????????????508452???????0????508452???0%?/sys/fs/cgroup tmpfs?????????????101692???????0????101692???0%?/run/user/0 [fxq@vm_46_188_centos?~]$2. df -h
[fxq@vm_46_188_centos?~]$?df?-h Filesystem??????Size??Used?Avail?Use%?Mounted?on /dev/vda1????????20G??4.7G???14G??25%?/ devtmpfs????????488M?????0??488M???0%?/dev tmpfs???????????497M?????0??497M???0%?/dev/shm tmpfs???????????497M???13M??485M???3%?/run tmpfs???????????497M?????0??497M???0%?/sys/fs/cgroup tmpfs???????????100M?????0??100M???0%?/run/user/0 [fxq@vm_46_188_centos?~]$3.df -i
[fxq@vm_46_188_centos?~]$?df?-i Filesystem??????Inodes??IUsed???IFree?IUse%?Mounted?on /dev/vda1??????1310720?121406?1189314???10%?/ devtmpfs????????124837????298??124539????1%?/dev tmpfs???????????127113??????1??127112????1%?/dev/shm tmpfs???????????127113????381??126732????1%?/run tmpfs???????????127113?????13??127100????1%?/sys/fs/cgroup tmpfs???????????127113??????1??127112????1%?/run/user/0 [fxq@vm_46_188_centos?~]$4. df -m
[fxq@vm_46_188_centos?~]$?df?-m Filesystem?????1M-blocks??Used?Available?Use%?Mounted?on /dev/vda1??????????20030??4732?????14275??25%?/ devtmpfs?????????????488?????0???????488???0%?/dev tmpfs????????????????497?????0???????497???0%?/dev/shm tmpfs????????????????497????13???????485???3%?/run tmpfs????????????????497?????0???????497???0%?/sys/fs/cgroup tmpfs????????????????100?????0???????100???0%?/run/user/05. 單位換算:
10024Byte=1KB
1024KB =1MB
1024MB=1GB
1024GB=1TB
/dev/shm 內(nèi)存:
6.free 查看swap
[root@vm_46_188_centos?~]#?free?total????????used????????free??????shared??buff/cache???available Mem:????????1016904??????325292???????90592???????12680??????601020??????504572 Swap:?????????????0???????????0???????????0 [root@vm_46_188_centos?~]#二、 du命令
du -sh /etc/
du -sh /etc/passwd
ls -lh /etc/passwd
當(dāng)文件小于4KB時(shí),也會(huì)顯示4KB
du -sb 可查看原大小 =ls -lh
du /root/ 查看文件夾內(nèi)文件大小
[root@vm_46_188_centos?~]#?du?-sh?/root/28M /root/ [root@vm_46_188_centos?~]#?du?-s?/root/27768 /root/ [root@vm_46_188_centos?~]#?du?/root/ 4 /root/fxq 4 /root/ffff 4 /root/234 8 /root/.ssh/fengxiaoqing/.git/logs/refs/remotes/origin 12 /root/.ssh/fengxiaoqing/.git/logs/refs/remotes 8 /root/.ssh/fengxiaoqing/.git/logs/refs/heads 24 /root/.ssh/fengxiaoqing/.git/logs/refs 32 /root/.ssh/fengxiaoqing/.git/logs44 /root/.ssh/fengxiaoqing/.git/hooks 8 /root/.ssh/fengxiaoqing/.git/objects/5e 8 /root/.ssh/fengxiaoqing/.git/objects/46 8 /root/.ssh/fengxiaoqing/.git/objects/87 8 /root/.ssh/fengxiaoqing/.git/objects/f2 4 /root/.ssh/fengxiaoqing/.git/objects/pack 8 /root/.ssh/fengxiaoqing/.git/objects/02 4 /root/.ssh/fengxiaoqing/.git/objects/info 8 /root/.ssh/fengxiaoqing/.git/objects/9d6 0 /root/.ssh/fengxiaoqing/.git/objects4 /root/.ssh/fengxiaoqing/.git/branches 8 /root/.ssh/fengxiaoqing/.git/info 8 /root/.ssh/fengxiaoqing/.git/refs/remotes/origin 12 /root/.ssh/fengxiaoqing/.git/refs/remotes 8 /root/.ssh/fengxiaoqing/.git/refs/heads 4 /root/.ssh/fengxiaoqing/.git/refs/tags2 8 /root/.ssh/fengxiaoqing/.git/refs20 0 /root/.ssh/fengxiaoqing/.git20 8 /root/.ssh/fengxiaoqing22三、 磁盤(pán)分區(qū)
fdisk -l 查看本機(jī)硬盤(pán).
[root@vm_46_188_centos?~]#?fdisk?-l Disk?/dev/vda:?21.5?GB,?21474836480?bytes,?41943040?sectors Units?=?sectors?of?1?*?512?=?512?bytes Sector?size?(logical/physical):?512?bytes?/?512?bytes I/O?size?(minimum/optimal):?512?bytes?/?512?bytes Disk?label?type:?dosDisk?identifier:?0x0005fc9aDevice?Boot??????Start?????????End??????Blocks???Id??System /dev/vda1???*????????2048????41943039????20970496???83??Linux [root@vm_46_188_centos?~]#w 查看負(fù)載
[root@vm_46_188_centos?~]#?w22:58:39?up?21?days,??5:50,??1?user,??load?average:?3.59,?4.43,?4.76USER?????TTY??????FROM?????????????LOGIN@???IDLE???JCPU???PCPU?WHAT root?????pts/0????60.10.158.223????21:25????7.00s??0.16s??0.00s?w [root@vm_46_188_centos?~]#mbr 最多有4個(gè)主分區(qū), 最大2T
[root@fxq-1?~]#?fdisk?-l 磁盤(pán)?/dev/sda:32.2?GB,?32212254720?字節(jié),62914560?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0x0004f0b3設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sda1???*????????2048??????411647??????204800???83??Linux /dev/sda2??????????411648?????4605951?????2097152???82??Linux?swap?/?Solaris /dev/sda3?????????4605952????62914559????29154304???83??Linux磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié)[root@fxq-1?~]# [root@fxq-1?~]#?fdisk?-l磁盤(pán)?/dev/sda:32.2?GB,?32212254720?字節(jié),62914560?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0x0004f0b3設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sda1???*????????2048??????411647??????204800???83??Linux /dev/sda2??????????411648?????4605951?????2097152???82??Linux?swap?/?Solaris /dev/sda3?????????4605952????62914559????29154304???83??Linux磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié)[root@fxq-1?~]#?fdisk?/dev/sdb 歡迎使用?fdisk?(util-linux?2.23.2)。Device?does?not?contain?a?recognized?partition?table 使用磁盤(pán)標(biāo)識(shí)符?0xc2b902ea?創(chuàng)建新的?DOS?磁盤(pán)標(biāo)簽。命令(輸入?m?獲取幫助): 命令操作a???toggle?a?bootable?flagb???edit?bsd?disklabelc???toggle?the?dos?compatibility?flagd???delete?a?partitiong???create?a?new?empty?GPT?partition?tableG???create?an?IRIX?(SGI)?partition?tablel???list?known?partition?typesm???print?this?menun???add?a?new?partitiono???create?a?new?empty?DOS?partition?tablep???print?the?partition?tableq???quit?without?saving?changess???create?a?new?empty?Sun?disklabelt???change?a?partition's?system?idu???change?display/entry?unitsv???verify?the?partition?tablew???write?table?to?disk?and?exitx???extra?functionality?(experts?only)命令(輸入?m?獲取幫助):n Partition?type:p???primary?(0?primary,?0?extended,?4?free)e???extended Select?(default?p): 分區(qū)號(hào)?(1-4,默認(rèn)?1): 起始?扇區(qū)?(2048-41943039,默認(rèn)為?2048): 將使用默認(rèn)值?2048Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(2048-41943039,默認(rèn)為?41943039): 分區(qū)?1?已設(shè)置為?Linux?類型,大小設(shè)為?2?GiB命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux命令(輸入?m?獲取幫助): Partition?type:p???primary?(1?primary,?0?extended,?3?free)e???extended Select?(default?p): 分區(qū)號(hào)?(2-4,默認(rèn)?2): 起始?扇區(qū)?(4196352-41943039,默認(rèn)為?4196352): 將使用默認(rèn)值?4196352Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(4196352-41943039,默認(rèn)為?41943039): 分區(qū)?2?已設(shè)置為?Linux?類型,大小設(shè)為?5?GiB命令(輸入?m?獲取幫助):n If?you?want?to?create?more?than?four?partitions,?you?must?replace?a primary?partition?with?an?extended?partition?first.命令(輸入?m?獲取幫助):d 分區(qū)號(hào)?(1-4,默認(rèn)?4): 分區(qū)?4?已刪除命令(輸入?m?獲取幫助)磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux命令(輸入?m?獲取幫助): Partition?type:p???primary?(3?primary,?0?extended,?1?free)e???extended Select?(default?e):? 已選擇分區(qū)?4起始?扇區(qū)?(31459328-41943039,默認(rèn)為?31459328): 將使用默認(rèn)值?31459328Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(31459328-41943039,默認(rèn)為?41943039): 將使用默認(rèn)值?41943039分區(qū)?4?已設(shè)置為?Extended?類型,大小設(shè)為?5?GiB命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended命令(輸入?m?獲取幫助): All?primary?partitions?are?in?use 添加邏輯分區(qū)?5起始?扇區(qū)?(31461376-41943039,默認(rèn)為?31461376):??? 將使用默認(rèn)值?31461376Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(31461376-41943039,默認(rèn)為?41943039): 分區(qū)?5?已設(shè)置為?Linux?類型,大小設(shè)為?4?GiB命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended /dev/sdb5????????31461376????39849983?????4194304???83??Linux命令(輸入?m?獲取幫助): All?primary?partitions?are?in?use 添加邏輯分區(qū)?6起始?扇區(qū)?(39852032-41943039,默認(rèn)為?39852032): 將使用默認(rèn)值?39852032Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(39852032-41943039,默認(rèn)為?41943039): 值超出范圍。 Last?扇區(qū),?+扇區(qū)?or?+size{K,M,G}?(39852032-41943039,默認(rèn)為?41943039):+100M??????? 分區(qū)?6?已設(shè)置為?Linux?類型,大小設(shè)為?100?MiB命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended /dev/sdb5????????31461376????39849983?????4194304???83??Linux /dev/sdb6????????39852032????40056831??????102400???83??Linux 設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb1????????????2048?????4196351?????2097152???83??Linux /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended /dev/sdb5????????31461376????39849983?????4194304???83??Linux /dev/sdb6????????39852032????40056831??????102400???83??Linux命令(輸入?m?獲取幫助): 分區(qū)號(hào)?(1-6,默認(rèn)?6): 分區(qū)?1?已刪除命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended /dev/sdb5????????31461376????39849983?????4194304???83??Linux /dev/sdb6????????39852032????40056831??????102400???83??Linux命令(輸入?m?獲取幫助): 分區(qū)號(hào)?(2-6,默認(rèn)?6): 分區(qū)?5?已刪除命令(輸入?m?獲取幫助):磁盤(pán)?/dev/sdb:21.5?GB,?21474836480?字節(jié),41943040?個(gè)扇區(qū) Units?=?扇區(qū)?of?1?*?512?=?512?bytes 扇區(qū)大小(邏輯/物理):512?字節(jié)?/?512?字節(jié) I/O?大小(最小/最佳):512?字節(jié)?/?512?字節(jié) 磁盤(pán)標(biāo)簽類型:dos 磁盤(pán)標(biāo)識(shí)符:0xc2b902ea設(shè)備?Boot??????Start?????????End??????Blocks???Id??System /dev/sdb2?????????4196352????14682111?????5242880???83??Linux /dev/sdb3????????14682112????31459327?????8388608???83??Linux /dev/sdb4????????31459328????41943039?????5241856????5??Extended /dev/sdb5????????39852032????40056831??????102400???83??Linux命令(輸入?m?獲取幫助):擴(kuò)展學(xué)習(xí)
parted分區(qū)gpt格式?http://www.apelearn.com/bbs/thread-7243-1-1.html
我們?cè)谡n上講的fdisk分區(qū)工具,它的分區(qū)格式為MBR,特點(diǎn)是,最多分4個(gè)主分區(qū),磁盤(pán)大小不能超過(guò)2T。而GPT分區(qū)格式,突破了這些限制,它沒(méi)有主分區(qū)、擴(kuò)展分區(qū)、邏輯分區(qū)之分,在一塊磁盤(pán)上最多可以分128個(gè)分區(qū)出來(lái),支持大于2T的分區(qū),最大卷可達(dá)18EB。?相信,隨著存儲(chǔ)級(jí)別的升級(jí),將來(lái)的分區(qū)格式逐漸會(huì)淘汰MBR,而GPT成為主流。parted?工具常用功能: 當(dāng)在命令行輸入parted后,進(jìn)入parted命令的交互模式。輸入help會(huì)顯示幫助信息。下面就簡(jiǎn)單介紹一下常用的功能1、check?簡(jiǎn)單檢查文件系統(tǒng)。建議用其他命令檢查文件系統(tǒng),比如fsck2、help?顯示幫助信息3、mklabel?創(chuàng)建分區(qū)表,?即是使用msdos(MBR)還是使用gpt,或者是其他方式分區(qū)表4、?mkfs?創(chuàng)建文件系統(tǒng)。該命令不支持ext3?格式,因此建議不使用,最好是用parted分好區(qū),然后退出parted交互模式,用其他命令進(jìn)行分區(qū),比如:mkfs.ext35、mkpart?創(chuàng)建新分區(qū)。 格式:mkpart?PART-TYPE??[FS-TYPE]??START??END PART-TYPE?類型主要有primary(主分區(qū)),?extended(擴(kuò)展分區(qū)),?logical(邏輯區(qū)).?擴(kuò)展分區(qū)和邏輯分區(qū)只對(duì)msdos。 fs-type???文件系統(tǒng)類型,主要有fs32,NTFS,ext2,ext3等 start?end?分區(qū)的起始和結(jié)束位置。6、mkpartfs?建立分區(qū)及其文件系統(tǒng)。目前還不支持ext3文件系統(tǒng),因此不建議使用該功能。最后是分好區(qū)后,退出parted,然后用其他命令建立文件系統(tǒng)。7、print?輸出分區(qū)信息。該功能有3個(gè)選項(xiàng),free?顯示該盤(pán)的所有信息,并顯示磁盤(pán)剩余空間 number?顯示指定的分區(qū)的信息 all?顯示所有磁盤(pán)信息8、resize?調(diào)整指定的分區(qū)的大小。目前對(duì)ext3格式支持不是很好,所以不建議使用該功能。9、rescue?恢復(fù)不小心刪除的分區(qū)。如果不小心用parted的rm命令刪除了一個(gè)分區(qū),那么可以通過(guò)rescue功能進(jìn)行恢復(fù)。恢復(fù)時(shí)需要給出分區(qū)的起始和結(jié)束的位置。然后parted就會(huì)在給定的范圍內(nèi)去尋找,并提示恢復(fù)分區(qū)。10、rm?刪除分區(qū)。命令格式?rm??number?。如:rm?3?就是將編號(hào)為3的分區(qū)刪除11、select?選擇設(shè)備。當(dāng)輸入parted命令后直接回車進(jìn)入交互模式是,如果有多塊硬盤(pán),需要用select?選擇要操作的硬盤(pán)。如:select?/dev/sdb12、set?設(shè)置標(biāo)記。更改指定分區(qū)編號(hào)的標(biāo)志。標(biāo)志通常有如下幾種:boot??hidden???raid???lvm?等。 boot?為引導(dǎo)分區(qū),hidden?為隱藏分區(qū),raid?軟raid,lvm?為邏輯分區(qū)。 如:set?3??boot??on???設(shè)置分區(qū)號(hào)3?為啟動(dòng)分區(qū) 注:以上內(nèi)容為parted常用的功能,由于該工具目前對(duì)ext3支持得不是很好,因此有些功能無(wú)法應(yīng)用,比如move(移動(dòng)分區(qū))和resize等。parted分區(qū)功能事例。1、用命令模式?為/dev/sdb創(chuàng)建gpt類型文件分區(qū)表,并分500G分區(qū)。然后為該分區(qū)創(chuàng)建ext3文件系統(tǒng)。并將該分區(qū)掛載在/test文件夾下。#??parted??/dev/sdb??mklabel?????—?jiǎng)?chuàng)建分區(qū)表#??parted??/dev/sdb??mkpart??ext3??0??500000????—?jiǎng)?chuàng)建500G分區(qū)/dev/sdb1#?mkfs.ext3??/dev/sdb1??????—-將分區(qū)/dev/sdb1格式化成ext3格式文件系統(tǒng)#?mount??/dev/sdb1?/test???—將/dev/sdb1?掛載在/test下如果讓系統(tǒng)自動(dòng)掛載/dev/sdb1?需手工編輯/etc/fstab文件。并在文件末尾添加如下內(nèi)容: /dev/sdb1?????????????/test????????????????ext3????defaults????????0?02、創(chuàng)建大小為4G的交互分區(qū)。由于已經(jīng)創(chuàng)建了500G的/dev/sdb1?,因此再創(chuàng)建的分區(qū)為/dev/sdb2#?parted?/dev/sdb?mkpart?swap?500000?504000?—?jiǎng)?chuàng)建4G分區(qū)/dev/sdb2#?mkswap??/dev/sdb2???—-將/dev/sdb2創(chuàng)建為交換分區(qū)#?swapon?/dev/sdb2???—-激活/dev/sdb2如果讓系統(tǒng)自動(dòng)掛載/dev/sdb2這個(gè)交換分區(qū),需手工編輯/etc/fstab文件。并在文件末尾添加如下內(nèi)容: /dev/sdb2?????????????swap????????????????swap????defaults????????0?03、恢復(fù)被誤刪除的分區(qū)(也可以參考testdisk命令)。由于parted直接寫(xiě)磁盤(pán),因此一旦不小心刪除了某一分區(qū),建議立即用rescue恢復(fù)。下面通過(guò)事例來(lái)理解恢復(fù)過(guò)程。#?parted?/dev/sdb?mkpart?ext3?504000?514000?—-創(chuàng)建10G分區(qū)/dev/sdb3#?mkfs.ext3?/dev/sdb3??—將/dev/sdb3格式化成ext3文件系統(tǒng)。#?parted?/dev/sdb?rm?3?—-刪除/dev/sdb3#?parted?/dev/sdb?rescue?504000?514000????—依照屏幕提示,輸入yes即可恢復(fù)被誤刪除分區(qū)parted分區(qū)實(shí)例
http://note.youdao.com/share/?id=42eff7fc6d14daeb5d710e9f6c4c7b59&type=note#/
本文轉(zhuǎn)自 楓葉云 ?51CTO博客,原文鏈接:http://blog.51cto.com/fengyunshan911/1957487
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