How to Upgrade From CentOS 6 to 7 - Nam Huy Linux

8/10/2019 How to Upgrade From CentOS 6 to 7 - Nam Huy Linux

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to upgrade from CentOS 6 to 7 - Nam Huy Linux

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How to upgrade from CentOS 6 to 711/03/2014 by namhuy Leave a Comment

CentOS 7 was released few months ago which I was

very excited, but I have been waiting for a while for

bugs fixing. Usually when any Linux distro is released,

they usually comes with unknow bugs which may break

your system. CentOS is always my favorite linux distro

since its a very stable distro, and CentOS is basically

RHEL (Red Hat Enterprise Linux) but its free. Lets

Geeky Open Source Linux Tutorials

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NAM HUY LINUX
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talk a little bit about new version of CentOS, CentOS 7

comes with systemd which incorporates features that

help enhance scalability and optimize performance,

Docker (open-source engine that automates deploy any

application) integration, and many more great new

features:

Supports For Linux Containers

XFS as the default filesystem

Updated kernel to 3.10.0

LVM-snapshots with ext4 and XFS

Switched from MySQL to MariaDB

Support up to 40G Ethernet Cards

Support instalations in UEFI mode

Comes with VMware Tools & 3D graphics drivers

For full CentOS release notes, you can visit http://wiki.centos.org/Manuals/ReleaseNotes/CentOS7

At the time Im writing, CentOS 7 only comes with x86_64 version, we are

expected to see 32 bit x86, ARM, and PowerPC releases later. So, if you have old

32bit version of CentOS 6, if you want to use CentOS 7, you will have to clean

install CentOS 7 x86_64 (if your cpu and motherboard supports x86_64). The

good new is, if you are using CentOS 6 x86_64 or 64 bit version of CentOS 6, you

can upgrade to CentOS 7 without reinstall your whole system again.

** Before we do anything, I have tested upgrading from CentOS 6 to 7 on several systems, there are risks

involved. It means after upgrading, some of the services will not be 100% functional. Luckily, preupg will

analyze and let you know the risk factors before you actually do the upgrade.

So lets get started!

Update your current CentOS 6 system

Before you do anything, you should update all your packages to the newest versions to avoid any problem

later on.

Check your current CentOS 6 version

# yum - y update
http://wiki.centos.org/Manuals/ReleaseNotes/CentOS7http://wiki.centos.org/Manuals/ReleaseNotes/CentOS7


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You can upgrade from CentOS 6.5 or 6.6 to 7, if you have older version, you should update your CentOS 6 to

the newest version which is 6.6 as of Im writing this.

This is the output on my machine

Install some required packages and upgrade tools

You may have these packages installed on your system, but in case you dont, you will need to install them.

Starting from RHEL 7, Red Hat start to support for upgrading to major releases (RHEL 6.5 > RHEL 7) via

a tool called redhat-upgrade-tool.To install upgarde tools, there are two ways to do it. Easy/quick way is to create a new repo file, or the

long/hard way is to download each package and install them. Im going to show you both ways.

The long way: the tools you need should be available to download at

http://dev.centos.org/centos/6/upg/x86_64/Packages/The files you will need are:

preupgrade-assistant

preupgrade-assistant-contents

preupgrade-assistant-ui

redhat-upgrade-tool

To download and install those packages:

Another way to install preupgrade and redhat upgrade tools is to add a new repo file. So lets create a new

# cat / et c/ r edhat - r el ease

Cent OS r el ease 6. 6 ( Fi nal )

yum - y i nst al l openscap pcr e- devel l i bxml 2- devel l i bxsl t - devel m2crypto

pyt hon- si mpl ej son mod_wsgi

# cd / et c

# wget ht t p: / / dev. cent os. or g/ cent os/ 6/ upg/ x86_64/ Packages/ pr eupgr ade- assi st ant - 1. 0. 2-

33. 0. 3. el 6. cent os. x86_64. r pm ht t p: / / dev. cent os. org/ cent os/ 6/ upg/ x86_64/ Packages/ pr eupgr ade-

assi st ant - cont ent s- 0. 5. 13- 1. 0. 5. el 6. cent os. noar ch. rpm

ht t p: / / dev. cent os. or g/ cent os/ 6/ upg/ x86_64/ Packages/ pr eupgr ade- assi st ant - ui - 1. 0. 2-

33. 0. 3. el 6. cent os. x86_64. r pm ht t p: / / dev. cent os. or g/ cent os/ 6/ upg/ x86_64/ Packages/ r edhat - upgr ade-

t ool - 0. 7. 22- 3. el 6. cent os. noarch. rpm

# yum l ocal i nst al l pr eupgr ade- assi st ant - *
http://dev.centos.org/centos/6/upg/x86_64/Packages/http://dev.centos.org/centos/6/upg/x86_64/Packages/


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repo file named upgradetool.repo in /etc/yum.repos.d/

with the content

The command to install preupgrade and redhat upgrade tools

Run preupgrade assistant

As I mentioned about preupg (Preupgrade Assistant), preupg does not do the actual upgrading but will check

for potential problems you might get from upgrading from CentOS 6 to 7. To run preupg

preupg will ask you if you want to continue, say yes

This is the result preupg tool give me for my system

# nano / etc/ yum. r epos. d/ upgr adetool . r epo

# yum - y i nst al l r edhat - upgr ade- t ool preupgr ade- assi st ant - cont ent s

# preupg

12

3456

[ upg]name=CentOS- $r el easever - Upgrade Tool

baseurl =http: / / dev. cent os. org/ cent os/ 6/ upg/ x86_64/gpgcheck=1enabl ed=1gpgkey=f i l e: / / / et c/ pki / r pm- gpg/ RPM- GPG- KEY- Cent OS- 6

1234

[ r oot @namhuy ~] # preupgPreupg t ool doesn' t do t he actual upgrade.Pl ease ensure you have backed up your syst em and/ or dat a i n t he event of a f ai l ed upgr adet hat woul d requi re a f ul l r e- i ns tal l of the system f romi nstal l at i on medi a.Do you want t o cont i nue? y/ n

1234567

89

1011121314151617181920

Gather i ng l ogs used by preupgr ade assi st ant :Al l i ns tal l ed packages : 01/ 11 . . . f i ni shed ( t i me 00: 00s)Al l changed f i l es : 02/ 11 . . . f i ni shed ( t i me 00: 12s)Changed conf i g f i l es : 03/ 11 . . . f i ni shed ( t i me 00: 00s)Al l user s : 04/ 11 . . . f i ni shed ( t i me 00: 00s)Al l groups : 05/ 11 . . . f i ni shed ( t i me 00: 00s)Ser vi ce st at uses : 06/ 11 . . . f i ni shed ( t i me 00: 00s)

Al l i ns tal l ed f i l es : 07/ 11 . . . f i ni shed ( t i me 00: 00s)Al l l ocal f i l es : 08/ 11 . . . f i ni shed ( t i me 00: 00s)Al l execut abl e f i l es : 09/ 11 . . . f i ni shed ( t i me 00: 00s)RedHat si gned packages : 10/ 11 . . . f i ni shed ( t i me 00: 00s)Cent OS si gned packages : 11/ 11 . . . f i ni shed ( t i me 00: 00s)Assessment of t he syst em, r unni ng checks / SCE scr i pts :001/ 096 . . . done ( Conf i gur at i on Fi l es t o Revi ew)002/ 096 . . . done ( Fi l e Li s t s f or Manual Mi gr at i on)003/ 096 . . . done ( Bacul a Backup Sof t ware)004/ 096 . . . done ( MySQL conf i gurat i on)005/ 096 . . . done ( Mi gr at i on of t he MySQL data stack)006/ 096 . . . done ( Changes rel ated t o movi ng f r om MySQL t o Mar i aDB)007/ 096 . . . done ( Post greSQL upgrade cont ent )


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2122232425262728293031

32333435363738394041424344

4546474849505152535455565758

596061626364656667686970717273747576777879808182838485

008/ 096 . . . done ( GNOME Deskt op Envi r onment under went several desi gnmodi f i cati ons i n CentOS 7 r el ease)009/ 096 . . . done ( KDE Deskt op Envi r onment under went several desi gnmodi f i cat i ons i n CentOS 7 rel ease)010/ 096 . . . done ( sever al gr aphi c dr i ver s not suppor t ed i n CentOS 7)011/ 096 . . . done ( sever al i nput dr i ver s not suppor t ed i n CentOS 7)012/ 096 . . . done ( sever al ker nel net wor ki ng dr i ver s not avai l abl e i n Cent OS 7)013/ 096 . . . done ( sever al ker nel st or age dr i ver s not avai l abl e i n CentOS 7)014/ 096 . . . done ( Names , Opt i ons and Out put For mat Changes i n ar pt abl es)

015/ 096 . . . done ( BI ND9 runni ng i n a chroot envi r onment check. )016/ 096 . . . done ( BI ND9 conf i gur at i on compat i bi l i t y check)017/ 096 . . . done ( Move dhcpd/ dhcprel ay arguments f rom / et c/ sysconf i g/ * t o* . sef i l es )018/ 096 . . . done ( DNSMASQ conf i gurat i on compat i bi l i t y check)019/ 096 . . . done ( Dovecot conf i gur at i on compat i bi l i t y check)020/ 096 . . . done ( Compati bi l i t y Between i pt abl es and i p6t abl es)021/ 096 . . . done ( Net - SNMP check)022/ 096 . . . done ( Squi d conf i gur at i on compat i bi l i t y check)023/ 096 . . . done ( Reusabl e Conf i gur at i on Fi l es )024/ 096 . . . done ( VCS reposi t or i es)025/ 096 . . . done ( Added and ext ended opt i ons f or BI ND9 conf i gur at i on)

026/ 096 . . . done ( Added opt i ons i n DNSMASQ conf i gur at i on)027/ 096 . . . done ( Packages not si gned by CentOS)028/ 096 . . . done ( Obsol eted r pms)029/ 096 . . . done ( w3m not avai l abl e i n CentOS 7)030/ 096 . . . done ( r epor t i ncompat i bi l i t i es bet ween CentOS 6 and 7 i nqemu- guest - agent package)031/ 096 . . . done ( Removed opt i ons i n coreut i l s bi nari es)032/ 096 . . . done ( Removed opt i ons i n gawk bi nari es)033/ 096 . . . done ( Removed opt i ons i n net st at bi nar y)034/ 096 . . . done ( Removed opt i ons i n quot a tool s )035/ 096 . . . done ( Removed r pms)036/ 096 . . . done ( Repl aced r pms)037/ 096 . . . done ( GMP l i br ary i ncompat i bi l i t i es )

038/ 096 . . . done ( package downgrades )039/ 096 . . . done ( r est or e cust om sel i nux conf i gur at i on)040/ 096 . . . done ( General )041/ 096 . . . done ( samba shared di r ectori es sel i nux)042/ 096 . . . done ( CUPS Br owsi ng/ Br owsePol l conf i gur at i on)043/ 096 . . . done ( CVS Package Spl i t )044/ 096 . . . done ( Fr eeRADI US Upgrade Ver i f i cat i on)045/ 096 . . . done ( ht t pd conf i gur at i on compat i bi l i t y check)046/ 096 . . . done ( bi nd- dyndb- l dap)047/ 096 . . . done ( I dent i t y Management Server compati bi l i t y check)048/ 096 . . . done ( I PA Ser ver CA Ver i f i cat i on)049/ 096 . . . done ( NTP conf i gur at i on)050/ 096 . . . done ( I nf ormat i on on t i me- sync. t arget )051/ 096 . . . done ( OpenLDAP / et c/ sysconf i g and data compat i bi l i t y)052/ 096 . . . done ( OpenSSH sshd_conf i g mi grat i on cont ent )053/ 096 . . . done ( OpenSSH sysconf i g mi grat i on cont ent )054/ 096 . . . done ( Conf i gur at i on f or quot a_nl d servi ce)055/ 096 . . . done ( Di sk quota net l i nk message daemon moved i nt o quota- nl dpacka056/ 096 . . . done ( SSSD compati bi l i t y check)057/ 096 . . . done ( Luks encr ypt ed par t i t i on)058/ 096 . . . done ( Cl vmd and cmi r r or d daemon management . )059/ 096 . . . done ( State of LVM2 ser vi ces. )060/ 096 . . . done ( devi ce- mapper - mul t i pat h conf i gur at i on compat i bi l i t y check)061/ 096 . . . done ( Removal of scsi - t ar get - ut i l s )062/ 096 . . . done ( Conf i gur at i on f or warnquot a t ool )063/ 096 . . . done ( Di sk quot a t ool warnquot a moved i nto quota- war nquot a package)


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8687888990919293949596979899100101102103104105106107108109

110111112113114115116117118119120121122123

124125126127128129130131132133134135136

137138139140141142143144145146147148149

064/ 096 . . . done ( Archi t ecture Support )065/ 096 . . . done ( Bi nar y rebui l ds)066/ 096 . . . done ( Debugi nf o packages)067/ 096 . . . done ( Cl ust er and Hi gh Avai l abi l i t y)068/ 096 . . . done ( Quorum i mpl ement at i on)069/ 096 . . . done ( f i x kr b5kdc conf i g f i l e)070/ 096 . . . done ( Fi l e Syst ems, Par t i t i ons and Mounts Conf i gurat i on Revi ew)071/ 096 . . . done ( Read Onl y FHS di rector i es )072/ 096 . . . done ( Sonamebumped l i bs)073/ 096 . . . done ( SonameKept Reusabl e Dynami c Li brar i es)074/ 096 . . . done ( Removed . so l i bs)075/ 096 . . . done ( I n- pl ace Upgr ade Requi r ements f or t he / usr / Di r ectory)076/ 096 . . . done ( CA cer t i f i cat e bundl es modi f i ed)077/ 096 . . . done ( Devel oper Tool Set packages)078/ 096 . . . done ( Hyper - V)079/ 096 . . . done ( Cont ent f or enabl i ng and di sabl i ng servi ces based on CentOS 6 syst em)080/ 096 . . . done ( Check f or ether net i nt er f ace nami ng)081/ 096 . . . done ( User modi f i cat i on i n / et c/ r c. l ocal and / et c/ r c. d/ r c. l ocal )082/ 096 . . . done ( cgr oups conf i gur at i on compat i bi l i t y check)083/ 096 . . . done ( Pl ugabl e aut hent i cat i on modul es ( PAM) )084/ 096 . . . done ( Forei gn Per l modul es)085/ 096 . . . done ( Python 2. 7. 5)086/ 096 . . . done ( Ruby 2. 0. 0)087/ 096 . . . done ( SCL col l ect i ons )

088/ 096 . . . done ( Syst em ki ckstart )089/ 096 . . . done (YUM)090/ 096 . . . done ( Check f or usage of dangerous r ange of UI D/ GI Ds)091/ 096 . . . done ( I ncor r ect usage of r eser ved UI D/ GI Ds)092/ 096 . . . done ( NI S ypbi nd conf i g f i l es backup)093/ 096 . . . done ( NI S Makef i l e backup)094/ 096 . . . done ( NI S server maps check)095/ 096 . . . done ( NI S ser ver MAXUI D and MAXGI D l i mi t s check)096/ 096 . . . done ( NI S server conf i g f i l e backup)Assessment f i ni shed ( t i me 00: 54s)Resul t t abl e wi t h checks and thei r resul ts f or mai n cont ent s:- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - -| Bacul a Backup

Sof t ware | not appl i cabl e| MySQL conf i gur at i on| not appl i cabl e || Mi gr at i on of t he MySQL data st ack| not appl i cabl e || Changes rel ated t o movi ng f r om MySQL t o Mar i aDB| not appl i cabl e || Post greSQL upgradecont ent | not appl i cabl e || GNOME Deskt op Envi r onment under went several desi gn modi f i cat i ons i n CentOS 7rel ease | not appl i cabl e || KDE Deskt op Envi r onment under went sever al desi gn modi f i cat i ons i n CentOS 7rel ease | not appl i cabl e |

| sever al gr aphi c dr i ver s not suppor t ed i n CentOS 7| not appl i cabl e || sever al i nput dr i vers not suppor t ed i n CentOS 7| not appl i cabl e || Names , Opt i ons and Out put For mat Changes i n ar pt abl es| not appl i cabl e || BI ND9 runni ng i n a chroot envi r onmentcheck. | not appl i cabl e || BI ND9 conf i gur at i on compat i bi l i t y check| not appl i cabl e || Move dhcpd/ dhcprel ay ar gument s f rom / et c/ sysconf i g/ * t o * . servi ce f i l es | not appl i cabl e || DNSMASQ conf i gurat i on compat i bi l i t y check


7/16



150151152153154155156157158159160

161162163164165166167168169170171172173174175176177178179180181182183184185186187

188189190191192193194195196197198199200201

202203204205206207208209210211212213214

| not app i ca e || Dovecot conf i gur at i on compat i bi l i t y check| not appl i cabl e || Net - SNMPcheck | not appl i cabl e| Squi d conf i gur at i on compat i bi l i t y check| not appl i cabl e || Added and ext ended opt i ons f or BI ND9conf i gur at i on | not appl i cabl e || Added opt i ons i n DNSMASQconf i gur at i on | not appl i cabl e |

| w3m not avai l abl e i n CentOS 7| not appl i cabl e || r epor t i ncompat i bi l i t i es bet ween CentOS 6 and 7 i n qemu- guest - agent package| not appl i cabl e || Removed opt i ons i n quot atool s | not appl i cabl e || General | not appl i cabl e || samba shared di r ectori essel i nux | not appl i cabl e || CUPS Br owsi ng/ Br owsePol lconf i gur at i on | not appl i cabl e || CVS Package Spl i t | not appl i cabl e || Fr eeRADI US Upgrade Ver i f i cat i on| not appl i cabl e || ht t pd conf i gur at i on compat i bi l i t y check| not appl i cabl e || bi nd- dyndb- l dap| not appl i cabl e || I dent i t y Management Server compat i bi l i t ycheck | not appl i cabl e || I PA Server CAVer i f i cat i on | not appl i cabl e| OpenLDAP / et c/ sysconf i g and datacompat i bi l i t y | not appl i cabl e || Conf i gur at i on f or quot a_nl d servi ce

| not appl i cabl e || Di sk quot a net l i nk message daemon moved i nt o quota- nl dpackage | not appl i cabl e || SSSD compati bi l i t ycheck | not appl i cabl e || Luks encr ypt edpar t i t i on | not appl i cabl e || Cl vmd and cmi r r or d daemon management . | not appl i cabl e || State of LVM2 ser vi ces. | not appl i cabl e || devi ce- mapper - mul t i pat h conf i gur at i on compat i bi l i t y check| not appl i cabl e || Removal of

scsi - t arget - ut i l s | not appl i cabl e| Conf i gur at i on f or war nquot at ool | not appl i cabl e || Di sk quota t ool warnquot a moved i nto quota- warnquot apackage | not appl i cabl e || Quorum i mpl ement at i on| not appl i cabl e || f i x krb5kdc conf i g f i l e| not appl i cabl e || Ruby2. 0. 0 | not appl i c| SCL col l ect i ons | not appl i cabl e |


8/16



215216

| Syst emki ckstart | notappl i cabl| NI S ypbi nd conf i g f i l es backup| not appl i cabl e || NI S Makef i l eback- up | not appl i cabl e| NI S ser ver maps check| not appl i cabl e || NI S ser ver MAXUI D and MAXGI D l i mi t s check| not appl i cabl e || NI S server conf i g f i l e

backup | not appl i cabl e || sever al ker nel net wor ki ng dr i ver s not avai l abl e i n CentOS 7| pass || sever al ker nel st or age dr i ver s not avai l abl e i n CentOS7 | pass || Reusabl e Conf i gur ati onFi l es | pass || I nf or mati on on t i me- sync. t arget | pass || OpenSSH sshd_conf i g mi grat i on cont ent | pass || Ar chi t ectureSupport | pass

| Debugi nf opackages | pass| Cl ust er and Hi gh Avai l abi l i t y| pass || Read Onl y FHS di rector i es | pass || I n- pl ace Upgr ade Requi r ements f or t he / usr / Di r ectory| pass || CA cer t i f i cat e bundl es modi f i ed| pass || Devel oper Tool Set packages| pass || Hyper - V| pass |

| Check f or ether net i nter f ace nami ng| pass || User modi f i cat i on i n / et c/ r c. l ocal and / et c/ r c. d/ r c. l ocal | pass || Pl ugabl e aut henti cat i on modul es ( PAM) | pass || Check f or usage of dangerous r ange ofUI D/ GI Ds | pass || I ncor r ect usage of r eservedUI D/ GI Ds | pass || Compati bi l i t y Between i pt abl es andi p6t abl es | i nf ormati onal || VCSreposi t or i es | i nf ormat i| Removed opt i ons i n coreut i l s bi nar i es| i nf ormat i onal || Removed opt i ons i n gawkbi nar i es | i nf ormati onal || Removed opt i ons i n net st at bi nar y| i nf ormat i onal || GMP l i br ary i ncompat i bi l i t i es| i nf ormat i onal || NTP conf i gurat i on| i nf ormat i onal || Fi l e Syst ems, Par t i t i ons and Mounts Conf i gur at i onRevi ew | i nf ormati onal || Sonamebumped l i bs


9/16



Exit Codes meaning

After running preupg tool, you will get the result with exit codes, here are the meaning of them

PASS: Everything is good

FAIL: something goes wrong, may have to do with compatibility problem

FIXED: incompatibility was detected, but there are solutions to fix by

running postupgrade.d scripts after the upgrade.

INFORMATIONAL: information for admins

NOT_APPLICABLE: some packages are not installed on your system but should be checked

ERROR: means there are errors in the preupgrade-assistant framework (you dont need to worry about

| i nf ormati onal || SonameKept Reusabl e Dynami c Li brar i es| i nf ormati onal || Removed . sol i bs | i nf or mati onal | Forei gn Per lmodul es | i nf ormati onal |YUM| i nf ormati onal || Repl aced r pms| f i xed || packagedowngr ades | f i xed| r est or e cust om sel i nuxconf i gur at i on | f i xed || OpenSSH sysconf i g mi grat i on cont ent | f i xed || Conf i gurati on Fi l es t o Revi ew| needs_i nspect i on || Fi l e Li st s f or Manual Mi gr at i on| needs_i nspect i on || Obsol et edr pms | needs_i nspect i| Bi nar y r ebui l ds

| needs_i nspect i on || Python2. 7. 5 | needs_ i nspe| Packages not si gned by CentOS| needs_act i on || Removedr pms | needs_act i on| Cont ent f or enabl i ng and di sabl i ng servi ces based on CentOS 6syst em | needs_act i on || cgr oups conf i gur at i on compat i bi l i t y check| needs_act i on |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - -Tarbal l wi t h r esul t s i s st or ed her e / r oot / preupgr ade- resul ts / pr eupg_r esul t s- 141103172105. t ar .

The l at est assessment i s st or ed i n di rect ory / r oot / preupgrade .Summar y i nf or mat i on:We f ound some pot ent i al i n- pl ace upgrade r i sks .Read the f i l e / r oot / preupgrade/ resul t . html f or mor e detai l s .Upl oad resul t s t o UI by command:e. g. preupg - u ht tp: / / 127. 0. 0. 1: 8099/ submi t / - r / root / preupgrade- resul t s / preupg_resul t s- * . t a


10/16



this)

Upgrade from CentOS 6 to 7

Once you run preupg tool and reviewing the errors, risks in the results, you should be ready to upgrade from

CentOS 6 to 7. You will need to import the CentOS 6 RPM key

Finally, run this command to upgrade

You can choose another mirror which is close to you for faster download, the full mirror list is available at

http://www.centos.org/download/mirrors/

The output after I ran the command:

# r pm - - i mpor t ht t p: / / mi r r or . cent os. or g/ cent os/ RPM- GPG- KEY- Cent OS- 7

1 # cent os- upgr ade- t ool - cl i - - net wor k 7 - - i nst r epo=ht t p: / / mi r r or . cent os. org/ cent os/ 7/ os/ x86_64/

12345678910

1112131415161718192021222324

25262728293031323334353637

set t i ng up r epos. . .. t reei nf o| 1. 1 kB 00: 00Preupgr ade assi st ant r i sk check f ound ri sks f or t hi s upgr ade.You can r un preupg - - r i skcheck - - ver bose t o vi ew t hese r i sks .Addr essi ng hi gh r i sk i ssues i s r equi r ed before t he i n- pl ace upgradeand i gnor i ng t hese r i sks may resul t i n a broken upgrade and unsuppor t ed upgr ade.Pl ease backup your data.Li s t of i ssues :

I NPLACERI SK: HI GH: We det ect ed some non- Cent OS si gned packages, you can f i nd t he l i st i n / r oohandl e t hem your sel f!I NPLACERI SK: HI GH: Package python- cheetah ( r equi r ed by NonCentOS si gned package( s ) : cl oud- i niI NPLACERI SK: HI GH: Af t er upgr adi ng t o CentOS 7 t here are st i l l some el 6 packages l ef t . Add - -t o r emove t hem aut omat i cal l y.I NPLACERI SK: HI GH: The ser vi ce i p6t abl es on Cent OS 7 i s di sabl ed by def aul t . Enabl e t hem vi as tar t i p6t abl es. servi ce .I NPLACERI SK: HI GH: The ser vi ce net f s on CentOS 7 i s di sabl ed by def aul t . Enabl e t hem vi a comnet f s . servi ce .I NPLACERI SK: HI GH: The ser vi ce net wor k on CentOS 7 i s di sabl ed by def aul t . Enabl e t hem vi a conetwork. servi ce .I NPLACERI SK: HI GH: The ser vi ce nt pd on CentOS 7 i s di sabl ed by def aul t . Enabl e t hem vi a commantpd. ser vi ce .I NPLACERI SK: HI GH: The ser vi ce post f i x on CentOS 7 i s di sabl ed by def aul t . Enabl e t hem vi a co

post f i x. servi ce .I NPLACERI SK: HI GH: The ser vi ce udev- post on CentOS 7 i s di sabl ed by def aul t . Enabl e t hem vi as tar t udev- post . servi ce .I NPLACERI SK: HI GH: addi t i onal l i bcgroup conf i gur at i on f i l es were creat ed ( / et c/ cgconf i g. d)I NPLACERI SK: MEDI UM: We detect ed some packages i nst al l ed on t he syst em were r emoved ( obsol et ef unct i onal i t y of t he packages dependi ng on t hem.I NPLACERI SK: MEDI UM: We det ect ed some packages i nst al l ed on t he syst em were removed bet ween Cof t he packages dependi ng on t hem.I NPLACERI SK: MEDI UM: Package coreut i l s- l i bs not pr ovi ded by i t s r epl acement coreut i l s. I n- pl aby post upgrade scri pt !I NPLACERI SK: MEDI UM: havi ng one of [ audi t - l i bs nss - ut i l nss - sys i ni t nss - t ool s audi t - l i bs- pytt zdat a nss openl dap ca- cer t i f i cates nspr ] package i nst al l ed br eaks upgr adeI NPLACERI SK: MEDI UM: We det ect ed some soname bumps i n t he l i brari es i nstal l ed on t he syst em.
http://www.centos.org/download/mirrors/http://www.centos.org/download/mirrors/


11/16



After running the centos-upgrade-tool-cli command, centos-upgrade-tool-cli gives me a list of issues if I do

the upgrade. There are some differences between Centos 6 and 7 as HIGH issues show. I will go ahead and

say yes to get the upgrading process started. centos-upgrade-tool-cli will ask you to reboot after download

some pacakges, go ahead and reboot your system to complete the upgrade.

When your system is booted up, check your system if its Centos 7

This is what I see after the upgrade

# r eboot

# cat / et c/ r edhat - r el ease

3839404142434445464748

4950515253

party app i cat i ons. T ey may nee r e ui . P ease c ec t ei r r equi r ement s.I NPLACERI SK: MEDI UM: We det ect ed some . so l i brar i es i nstal l ed on t he system were removed betf uncti onal i t y of some of your 3rd par t y appl i cat i ons.I NPLACERI SK: MEDI UM: The ser vi ce cl oud- conf i g i s not i nst al l ed by Cent OS si gned packages andupgr ade.I NPLACERI SK: MEDI UM: The ser vi ce cl oud- f i nal i s not i nst al l ed by Cent OS si gned packages and wiupgr ade.I NPLACERI SK: MEDI UM: The ser vi ce cl oud- i ni t i s not i nst al l ed by Cent OS si gned packages and wi lupgr ade.I NPLACERI SK: MEDI UM: The ser vi ce cl oud- i ni t - l ocal i s not i nst al l ed by Cent OS si gned packagesupgr ade.

I NPLACERI SK: SLI GHT: We detected some f i l es wher e modi f i cat i ons ar e not t r acked i n t he r pms. successf ul upgr ade.I NPLACERI SK: SLI GHT: We det ect ed some f i l es unt r acked by r pms. Some of t hese may need manualcause conf l i cts or t r oubl es dur i ng t he i ns tal l at i on. Tr y t o r educe unnecessar y unt r acked f i l eI NPLACERI SK: SLI GHT: Package procps ( r equi r ed by NonCent OS si gned package( s ) : cl oud- i ni t ) rI NPLACERI SK: SLI GHT: We det ect ed some packages i nst al l ed on t he syst em changed thei r name betcompat i bl e, moni t ori ng af t er t he updat e i s r ecommended.I NPLACERI SK: SLI GHT: export shel l commands wi l l be del eted f rom / et c/ sysconf i g/ sshdI NPLACERI SK: SLI GHT: Some scr i pt s unt r acked by RPM were di scovered on t he syst em and may not I NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ argparse- 1. 2. 1- py2. 6. egg- i nf o i s ownedI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ backport s i s owned by an RPM package tI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ backport s. ss l _mat ch_host name- 3. 4. 0. 2- psi gned by Cent OS.I NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ bot o i s owned by an RPM package t hat wI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ boto- 2. 32. 1- py2. 6. egg- i nf o i s owned byI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ char det i s owned by an RPM package t haI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ cl oud_i ni t - 0. 7. 4- py2. 6. egg- i nf o i s ownI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ c l oudi ni t i s owned by an RPM package tI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/j sonpat ch- 1. 2- py2. 6. egg- i nf o i s ownedI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ prett yt abl e- 0. 7. 2- py2. 6. egg- i nf o i s oI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ r equests i s owned by an RPM package t hI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ si x- 1. 7. 3- py2. 6. egg- i nf o i s owned byI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ tests i s owned by an RPM package t hatI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ ur l l i b3 i s owned by an RPM package t haI NPLACERI SK: SLI GHT: / usr / l i b/ python2. 6/ s i t e- packages/ ur l l i b3- 1. 5- py2. 6. egg- i nf o i s owned byI NPLACERI SK: SLI GHT: / usr / l i b64/ python2. 6/ s i t e- packages/ backport s i s owned by an RPM packageI NPLACERI SK: NONE: Cust om sel i nux conf i gur ati on has been saved and i t wi l l be restored by a p

Cont i nue wi t h t he upgrade [Y/ N] ?

1 Cent OS Li nux r el ease 7. 0. 1406 ( Core)


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