juniper交换机密码重置.docx

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1、EXSwitchrootpasswordrecoveryKnowledgeBaseID:KB10503Version:3.0Published:07Oct2008Updated:07Oct2008Categories:SwitchProductsEX3200EX4200JUNOS-EX SYNOPSIS:EXSwitchrootpasswordrecoverymethodduringBetaperiod.Theprocedurerequiresafewextracommandsbutwillbesimplifiedtoasinglecommand

2、inloadermodeinalaterrelease.PROBLEM:EXSwitchrootpasswordrecovery.SOLUTION:TorecoverthepasswordontheEXSwitchyoumustbeconnectedviatheconsole,rebootandthenaccessLoadermode. Thestepsforcompletingthisprocessarelistedbelowalongwiththeactualbootoutput.PasswordRecoverySteps:1.AccessE

3、XSwitchviatheconsoleport.2.ReboottheEXSwitch3.WhenpromptedtoenterLoadermodehitthebarandyouwillbesittingatthe"loader>"prompt. Enterthefollowingcommand:   loader>boot-s   4.Whenpromptedwith,"Enterfullpathnameofshellor'recovery'forrootpasswordrecoveryorRETURNfor/b

4、in/sh:",hitandyouwillbeatahashprompt. Enterthefollowing:             #fsck-y   5.Oncefsckcompletesyouwillbeatthehashpromptagain. Enterthefollowing:             #mount-a              #rm/config/juniper*                  #exit6.Afterthesystemismountedyouwillbepro

5、mptedwiththerootloginprompt. Enterthe"root"forloginandaspassword.NOTE: Apasswordisnotrequiredforrootloginduringinitialsetup.SampleBootProcess:Loading/boot/defaults/loader.conf/kerneldata=0xb4ac4c+0x5c744syms=[0x4+0x83830+0x4+0x872e3]Hit[Enter]tobootimmediately,orspaceb

6、arforcommandprompt.    <<<<>>>>Type'?'foralistofcommands,'help'formoredetailedhelp.loader>boot-sKernelentryat0xa0000100...GDB:debugports:uartGDB:currentport:uartKDB:debuggerbackends:ddbgdbKDB:currentbackend:ddbCopyright(c)1996-2007,JuniperNetworks,Inc.Allrightsre

7、served.Copyright(c)1992-2006TheFreeBSDProject.Copyright(c)1979,1980,1983,1986,1988,1989,1991,1992,1993,1994       TheRegentsoftheUniversityofCalifornia.Allrightsreserved.JUNOS9.1I20071129_2226_marcelm#1:2007-11-2922:27:50UTC   marcelm@apg-bbuild01.juniper.net:/b/marcelm/junos

8、/9.1a/obj-powerpc/sys/compile/JUNIPER-EXWARNING:debug.mpsafenetforce