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PurposeTroubleshootingSteps Preliminaryquestionstoask General SMFandMilestones Installingabootblock Rebuildingthebootarchive ZFSProblemsaccessingzpoolsduringboot MirroredSystems UsefuldocumentsReferences

APPLIESTO:

OpenSolarisOperatingSystemVersion2008.05to2009.06[Release10.0]Informationinthisdocumentappliestoanyplatform.

PURPOSE

ToprovidetipsforassistingwithSolaris10bootproblems.

TROUBLESHOOTINGSTEPS

Preliminaryquestionstoask

1.Isthisx86orsparc?2.IstheOSufsorzfs?3.Isthesystemmirrored?Withwhatproduct?4.Isthesystemclustered?Withwhatproduct?5.Whatworkwasbeingdoneonthissystemorwasthesystemfoundinthedownstate?6.Howfarintothebootprocessdoesthesystemget?Whataretheerrormessages?7.Whatkernelpatchorwhatupdateisinstalledonthesystem?

General

1.Lookatresultsof(options'vV'and'mverbose'canbecombined)

A.bootvV>displayverbosedebugginginformationverboseinfoofOBPbootandkernelB.bootmverbose>toshowwhichservicewaslastrunandusethattocheckwhichservicewhichshouldberunnext.ProvidesverboseinformationonSMF.C.bootmdebug>thisshowsSMFservicesinveryverboselevel.Notrecommendedinnormalcases.formoreinfopleaseseemanpageofboot(1M)

SMFandMilestones

1.Trytoboottothevariouslevelsfromtheokprompt:A.bootmmilestone=none>Thiswon'tloadanyservicessoifoneofthemiscausingproblemsyoucanfixitbeforeloadingit.B.bootmmilestone=singleuser

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Type:Status:LastMajorUpdate:LastUpdate:

TROUBLESHOOTINGPUBLISHEDMay5,2015May5,2015

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B.bootmmilestone=singleuserC.bootmmilestone=multiuserD.bootmmilestone=multiuserserver

2.boottoearlymilestoneandgofromoneleveltothenext:

A.ok>bootmmilestone=noneE.#/usr/sbin/svcadmvmilestonesvc:/milestone/singleuser:defaultF.#/usr/sbin/svcadmvmilestonesvc:/milestone/multiuser:defaultG.#/usr/sbin/svcadmvmilestonesvc:/milestone/multiuserserver

3.Checkthestatusoftheservicesrequiredforeachrunlevel.Thecommand:

A.#svcsdmilestone/singleuser:defaultB.#svcsdmilestone/multiuser:defaultC.#svcsdmilestone/multiuserserver:default

Ifaserviceisshownasdisabledthatshouldbeenabled,trytoreenableitwith:

D.#svcadmvenabler

examples:

#svcadmvenablersvc:/system/device/local:default#svcadmvenablersvc:/system/filesystem/local:default

Theroptionistherecursiveoptionwhichwillstartthedependencies.

4.Lookatthestatusofallfailingservices:

#svcsxv

5.Forproblemservicesrefertothelogfileslocatedin:A./etc/svc/volatile/B./var/svc/log/

etc/svc/volatileisanemptymountpointthatatmpfsismountedonduringbootSoitwillonlyhavefilesintheactivebootenvironment

6.Rebuildtherepository>notethatifyouselectboot,yoursystemwillreboot

#/lib/svc/bin/restore_repository

orifbootedfailsafe/a/lib/svc/bin/restore_repositoryr/a

7.Checkstatusofmilestones:

labbox%svcs|grepmilestoneonlineJun_05svc:/milestone/network:defaultonlineJun_05svc:/milestone/devices:defaultonlineJun_05svc:/milestone/singleuser:defaultonlineJun_05svc:/milestone/sysconfig:defaultonlineJun_05svc:/milestone/nameservices:defaultonlineJun_05svc:/milestone/multiuser:defaultonlineJun_05svc:/milestone/multiuserserver:default

8.Enableverboseloggingforsvc.startdFordetails,pleaseseeMOSdocument1002635.1Howtoplacethesvc.startddaemonindebugmode

9.increaseverbosityofbootmessagessetxcanprovideusefulinformationintryingtoresolveabootproblem.

Addsetxasthesecondlineinoneofthefollowingscripts:

Ensuretomakebackupcopybeforemanipulatingthesescripts

/lib/svc/method/{scriptname}(togetthenameofamethodscriptforaparticularservice,usesvccfg.i.e#svccfgssvc:/system/fmdlistprop|egrepstart/execstart/execastring/usr/lib/fm/fmd/fmd

TheverboseouputcanbefoundinthelogfilesfortheparticularSMFservicesi.e./var/svc/log/systemfmd:default.log/etc/svc/volatile/networkphysical:default.log

Alternatively,'setx'couldalsobeaddedtolegacyrcscripts/sbin/rcS/sbin/rc2/sbin/rc3/etc/rc2.d/

verboseoutputforlegacyrcscriptscanbefoundinmilestoneslogfiles/var/svc/log/milestonesingleuser:default.log/var/svc/log/milestonemultiuser:default.log/var/svc/log/milestonemultiuserserver:default.log

pleaseseeMOSdoc1438926.1troubleshootingofSMFlegacyrcinitscriptsinSolaris10

Installingabootblock

Besuretousethecorrectbootblockrequiredforthesystem.Youcanusethebootblockandinstallbootcommandfromavarietyofsources:DVD,failsafe,anetimage,theexistingoperatingsystem.Youneedtobecarefultospecifythepathtotheinstallbootcommandandthebootblock.

Checkthekernelpatchrevisiononthesystem.Theufsbootblkchangedwiththiskernelpatch13713709.Abootblockfrom13713709orlaterwillnotworkonasystemthatisatakernelpatchbeforethe13713709kernellevelandviceversa.

TocheckthekernelpatchonthediskwhenbootedfromfailsafeorfromDVD,youcanusethestringscommand:i.e.#strings/a/platform/`unamem`/kernel/sparcv9/unix|grepGenericGeneric_14714726

SPARC:

#/usr/sbin/installboot/usr/platform/`unamem`/lib/fs/ufs/bootblk/dev/rdsk/c#t#d#s#Examples:#/usr/sbin/installboot/usr/platform/`unamem`/lib/fs/ufs/bootblk/dev/rdsk/c0t0d0s0#/usr/sbin/installboot/usr/platform/`unamem`/lib/fs/ufs/bootblk/dev/md/rdsk/d0(ifmirroredwithSolarisVolumeManager)

X86:ToedittheGrubmenurefertodocument1008146.1,HowtobootsingleusermodefromtheGrubbootloaderinSolaris10x863/05or1/06

Refertodocument1005352.1,ConfiguringandUnderstandingGRUB.

Solaris10andSolaris11(GRUB)

#/usr/sbin/installgrub[fm]stage1stage2rawdevice

Solaris11.1andhigher(GRUB2)

/usr/sbin/bootadminstallbootloader[Mfv][Ppool][Rpath][device1...deviceN]

UFS:Refertodocument1004422.1,HowtoRecoverFromtheBootError"Thefilejustloadeddoesnotappeartobeexecutable".

ZFS:Refertodocuments:1020186.1,Howtomountzfsrootpool(rpool)bootingfromDVDornetwork.1020196.1,HowtoInstallZFSbootblk.

Thefollowinggivesanexamplesoftheinstallbootcommand.

ExampleforSPARC:ToinstallaZFSbootblockonslice0oftarget0oncontroller1oftheplatformwherethecommandisbeingrun,usesyntaxsuchasthefollowing:

#installbootFzfs/usr/platform/`unamei`/lib/fs/zfs/bootblk/dev/rdsk/c0t1d0s0

ExampleforX86(Solaris11.1):

#bootadminstallbootloadervPrpoolOutputfrombootloaderinstallationcommand"/usr/lib/grub2/bios/sbin/grubinstallnofloppygrubdirectory=/rpool/boot/grub/i386pcpkglibdir=/usr/lib/grub2/bios/lib/grub/i386pcmodules=minicmdrebootdebug/dev/rdsk/c7t0d0p0"is::Sizeofversioninginfo:132Sizebeforeversioning:59388,after:59520Installationfinished.Noerrorreported.linesomitted+/usr/lib/grub2/bios/sbin/grubsetup'versionstring=1.99,5.11.0.175.1.0.0.24.2:20130613T074908Z'verbose'directory=/rpool/boot/grub/i386pc''devicemap='/dev/rdsk/c7t0d0p0/usr/lib/grub2/bios/sbin/grubsetup:info:nodevice.map./usr/lib/grub2/bios/sbin/grubsetup:info:Lookingfor/dev/rdsk/c7t0d0p0./usr/lib/grub2/bios/sbin/grubsetup:info:grub_util_biosdisk_get_grub_dev:drive=0csp2sd=/dev/rdsk/c7t0d0p0.linesomitted/usr/lib/grub2/bios/sbin/grubsetup:info:saving./usr/lib/grub2/bios/sbin/grubsetup:info:writingbootimagetodest_dev.+testxyes'='xyes+cpf/usr/lib/grub2/bios/lib/grub/i386pc/version.lst/rpool/boot/grub/i386pc/+echo'Installationfinished.Noerrorreported.'+exit0

Rebuildingthebootarchive

ThebootarchiveexistsinSolaris10,update6andlater,and13713709andlater.

Thebootarchivefileislocated:/platform/`unamem`/boot_archive

okbootnetsokbootcdromsokbootFfailsafe

Ifthisisaufsfilesystem,beforemountingdiskcheckfilesystemintegritywithfsckchangec0t0d0s0tomatchyourrootdisk,example:

#fsck/dev/rdsk/c0t0d0s0#mount/dev/dsk/c?t?d?s?/a#bootadmupdatearchivefvR/a

Thefoptionwillforcerebuild.

IncasetherootdiskismirroredwithSVM(SolarisVolumeManager),donotmountasinglesliceforupdatingbootarchive,butusetheprocedureinfollowingdocument:HowtoManuallyUpdatetheBootArchiveonaSolarisVolumeManagerRAID1(Mirrored)RootPartitionhttp://docs.oracle.com/cd/E1925301/8171985/mirror1/index.html

ZFSProblemsaccessingzpoolsduringboot

Formorecompleteinformationgoto:http://docs.oracle.com/cd/E1925301/8195461/gavwg/index.html

DuringthebootofasystemwithZFSrooteachzpoolmustbeopened.Failuretoopenazpoolcancausethesystemtopaniconboot.ToresolvethisproblemZFSneedstobeinformednottolookforanypoolsduringthebootprocess.Thefile/etc/zfs/zpool.cacheisaninternalcacheofavailablepoolsandassociatedinformation.TheseactionscauseZFStoforgetthatanypoolsexistonthesystem,preventingitfromtryingtoaccessthebadpoolcausingtheproblemIftheZFSsystembecomesunbootable:

1.Boottomilestone=none:

okbootmmilestone=none

2.remounttherootfilesystemaswritable

3.renameormovethe/etc/zfs/zpool.cachefiletoanotherlocation

4.Bringthesystemonuptomultiuserservermode:

#svcadmmilestoneall

5.Tryimportthepoolusing:

#zpoolimport

Notethatthiswilllikelycausethesameerrorthatoccurredduringboot,becausethecommandusesthesamemechanismtoaccesspools.

6.Intheeventofmultiplepoolsexistingonthesystem:

A.Renameormovethezpool.cachefiletoanotherlocationasdiscussedabove.

B.Displaythepoolswithreportedfatalerrors:

#fmdumpeV

C.Importpoolsonebyone,skippingthepoolshavingissuesasreportedbythefmdumpcommand.

MirroredSystems

ForsystemswithRAID1mirroringwithSolarisVolumeManageryoucanpreservethemirrorbyfollowingthedocument

1340586.1Howtoaccess(root)diskunderSolarisVolumeManagerControl(SVM)fromfailsafeorCDROMandupdatetheboot_archiveinSolaris10

InrarecasesforexamplewhenyoususpectcorruptionofSVMdatabaseyoucantakethemirroringoutoftheway

1005712.1UnabletobootfromaDiskSuitecontrolledsystem

ForsystemswiththeoperatingsystemunderVeritasVolumeManagerControlreferto:

1003238.1FullandBasic/FunctionalUnencapsulationofaVeritasVolumeManagerEncapsulatedRootDisk.

1340586.1Howtoaccess(root)diskunderSolarisVolumeManagerControl(SVM)fromfailsafeofCDROMandupdatetheboot_archiveinSolaris10.

IfproblemsareencounteredwithVeritasVolumeManagerthecustomershouldcontacttheirvendorprovidingthesupportofthisproduct.

Usefuldocuments

1010864.1svc.startd[7]:"/lib/svc/method/fsusr"failedwithexitstatus95.

1020186.1Howtomountzfsrootpool(rpool)bootingfromDVDornetwork.

1020196.1HowtoInstallZFSbootblk.

1005522.1HowtoRecoverFromtheBootError"Thefilejustloadeddoesnotappeartobeexecutable"

1005352.1ConfiguringandUnderstandingGRUB

1340586.1Howtoaccess(root)diskunderSolarisVolumeManagerControl(SVM)fromfailsafeorCDROMandupdatetheboot_archiveinSolaris10

1005712.1UnabletobootfromaDiskSuitecontrolledsystem

1003238.1FullandBasic/FunctionalUnencapsulationofaVeritasVolumeManagerEncapsulatedRootDisk

OracleSolarisZFSTroubleshootingandPoolRecover,http://docs.oracle.com/cd/E1925301/8195461/gavwg/index.html

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