欢迎来到天天文库
浏览记录
ID:43588412
大小:259.06 KB
页数:6页
时间:2019-10-11
《CentOS7备份和还原_计算机软件及应用_IT计算机_专业资料》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、Linux备份和还原实验目的备份linux系统下一个目录/boot和一个分区,其挂载点是/home。实验步骤步骤一:添加备份盘添加之前查看当前文件系统使用情况,查看备份目录下文件占用情况。#df-h查看文件系统使用率#lsblk查看分区挂载情况#du-s/home查看目录下所有文件大小#du-s/boot]#df-heGMMMMGMbZ9944485si-8999-71S1444435dMOOMOMKe8768sz1zu1699Auai11.7G489M494M487M494MZ.7G53ZMUsezMoun七讹on8z/Ox/deuOxzdeu/shmZz/runO
2、x/sys/fs/cgroupZ6z/usrlx/homesda5ZE4K8G9GZGTYPEdiskdiskpartpartpartMOUNTPOINT/usr/[SWAP]600M0part/homesrO11:0[rootPcent03~13.9G0romIttdu-s/home[rootPcent03~J#du-s/boot70060/boot[rootPcent03]#步骤二:加载备份盘根据以上查询,添加一块1GB硬盘即可用于备份。#cat/proc/scsi/scsi—查看当前磁盘控制器编号,和磁盘ID#echo"scsiadd-single-device
3、001Oz,»/proc/scsi/scsi#lsblk[rootOcen1031ttcat/proc/scsi/scsiAttacheddeuices:Host:scsiOChanne1:00Id:00Lun:00Vendor:UMware,Mode1:UMwareUirtualSType:Direct一AccessHost:scsiZChannel:00Id:00Lun:00Vendor:NECUMUarMode1:UMwareIDECDR10Type:CD-ROMReu:AMSIReu:ANSIl.GSCSIrevision:GZ1.00SCSIrevision
4、:05[rootycentOJItt:choHscsiaddsingle-deuice0010">>/proc/scsi/scsi[1308.779915Jsd0:O:1:O:~IsdbJAssumingdriuecache:writethrough(sdblAssuningdriwscache:writethrough[root(?cent03~〕U〔1308.7852??)sd0:0:l:0:[sdb)Assumingdriuecache:writethrough(1308.7868401sd0:G:l:0:[root(?cent03NAMEMAJ:MINfdOZ
5、:0sda8:0sdal8:1k-sdaZ8:2k-sda38:3-sda48:4JU100000lsblkSIZE4K8G3.9GZG1000MIKRO00000OTYPEdiskdiskpartpartpartpartriOUNTPOIMT/usr[SWAP]sdb8:1601G0diskron[root(?cent03~]U步骤三:对备份盘进行分区根据需求,分两个区,/dev/sdbl200MB空间,用来备份/boot。/dev/sdb2使用余下800MB空间,用来备份/home分区。#fdisk/dev/sdbEHoa-Ss-Sswbs-SoNfifdsd二y
6、二sduSr1234aaaadddd888888888H678111litlsblkBMSIZE14K08G03.9G0ZG01000M0IK0600M01G0ZOOMG8Z3M13.9GRO00000000000TYPEdiskdiskpartpartpartpartpartdiskpartpartronnOUNTPOIMT/usr/[SWAP]/bone[root(?cent03Ittfdisk/deu/sdbUeleonetofdisk(util-linuxZ.Z3.Z)•Changeswi11remaininMemoryonly^untilyoudecidet
7、owrit巳them.Becarefulbeforeusingth©writ巳connand.DeuicedoesnotcontainarecognizedpartitiontableBuildinganewDOSdisklabelwithdiskidentifier0x7f67abb8.Command(mforhelp):nPartitiontype:pprimary(0primary>0extended,4free)e巳xtendedSelect(defaultp):UsingdefauItresponsepPartitionnumberdefa
此文档下载收益归作者所有