修復錯誤配置fstab文件導致系統(tǒng)無法正常啟動

1、修復修復錯誤錯誤配置配置fstab文件文件導致系致系統(tǒng)無法正常啟無法正常啟動1.問題問題再現(xiàn)1.1.操作操作環(huán)境說明操作系操作系統(tǒng)：CentOS5.2硬盤分區(qū)情況：分區(qū)情況：[root@localhost~]#fdiskdevsdaThenumberofcylindersfthisdiskissetto1305.Thereisnothingwrongwiththatbutthisislargerthan1024couldincertai

2、nsetupscauseproblemswith:1)softwarethatrunsatboottime(e.g.oldversionsofLILO)2)bootingpartitioningsoftwarefromotherOSs(e.g.DOSFDISKOS2FDISK)Comm(mfhelp):pDiskdevsda:10.7GB10737418240bytes255heads63sectstrack1305cylindersU

3、nits=cylindersof16065512=8225280bytesDeviceBootStartEndBlocksIdSystemdevsda11522419293383Linuxdevsda2523783209648283Linuxdevsda3784914105225782LinuxswapSolarisComm(mfhelp):v6288172unallocatedsectsfstab文件：文件：[root@localho

4、st~]#meetcfstabLABEL=ext3defaults11LABEL=tmptmpext3defaults12tmpfsdevshmtmpfsdefaults00devptsdevptsdevptsgid=5mode=62000sysfssyssysfsdefaults00procprocprocdefaults00LABEL=SWAPsda3swapswapdefaults001.2.創(chuàng)建新的分區(qū)，并配置建新的分區(qū)，并配置

5、fstab文件文件1.2.1.創(chuàng)建分區(qū)建分區(qū)在devsda上創(chuàng)建新的主分區(qū)sda4[root@localhost~]#fdiskdevsdaThenumberofcylindersfthisdiskissetto1305.Thereisnothingwrongwiththatbutthisislargerthan1024couldincertainsetupscauseproblemswith:Superblockbackupssted

6、onblocks:3276898304163840229376294912Writinginodetables:doneCreatingjournal(16384blocks):doneWritingsuperblocksfilesystemaccountinginfmation:dohisfilesystemwillbeautomaticallycheckedevery20mounts180dayswhichevercomesfirs

7、t.Usetune2fscitooverride.[root@localhost~]#e2labeldevsda4otherMountdevsda4到others[root@localhost]#mkdirothers[root@localhost]#mountdevsda4others[root@localhost]#mountdevsda1ontypeext3(rw)proconproctypeproc(rw)sysfsonsyst

8、ypesysfs(rw)devptsondevptstypedevpts(rwgid=5mode=620)devsda2ontmptypeext3(rw)tmpfsondevshmtypetmpfs(rw)noneonprocsysfsbinfmt_misctypebinfmt_misc(rw)sunrpconvarlibnfsrpc_pipefstyperpc_pipefs(rw)devsda4onotherstypeext3(rw)

9、[root@localhost]#cdothers[root@localhostothers]#lsltotal16drwx2rootroot16384Nov2119:35lostfound[root@localhostothers]#修改fstab文件[root@localhost]#vietcfstabLABEL=ext3defaults11LABEL=tmptmpext3defaults12tmpfsdevshmtmpfsdefa

10、ults00devptsdevptsdevptsgid=5mode=62000sysfssyssysfsdefaults00procprocprocdefaults00LABEL=SWAPsda3swapswapdefaults00LABEL=otherothersext3defaults12請注意：這里用到是LABEL而不是設備名（devsda4），但是這里把卷標寫錯，應該是other，前面沒有。并且沒有運行mounta命令來驗證配置