CentOS6.5から7へのアップグレード
アップグレードはバックアップを取ってから行うようにしてください
まず、CentOSのバージョンが6.5であることを確かめる
# cat /etc/redhat-release
次に必要なパッケージをインストール。
※2014/11時点
※時期によりパッケージのリンク先が変わっている可能性あり
# rpm -ihv http://dev.centos.org/centos/6/upg/x86_64/Packages/preupgrade-assistant-1.0.2-36.0.1.el6.centos.x86_64.rpm
# rpm -ihv http://dev.centos.org/centos/6/upg/x86_64/Packages/preupgrade-assistant-contents-0.5.14-1.el6.centos.noarch.rpm
# rpm -ihv http://dev.centos.org/centos/6/upg/x86_64/Packages/preupgrade-assistant-ui-1.0.2-36.0.1.el6.centos.x86_64.rpm
# rpm -ihv http://dev.centos.org/centos/6/upg/x86_64/Packages/redhat-upgrade-tool-0.7.22-3.el6.centos.noarch.rpm
# rpm --import http://ftp.plusline.de/centos/7.0.1406/os/x86_64/RPM-GPG-KEY-CentOS-7
上のパッケージインストールが完了したらアップグレード開始。
# preupg -s CentOS6_7 Preupg tool doesn't do the actual upgrade. Please ensure you have backed up your system and/or data in the event of a failed upgrade that would require a full re-install of the system from installation media. Do you want to continue? y/n y Gathering logs used by preupgrade assistant: All installed packages : 01/11 ...finished (time 00:00s) All changed files : 02/11 ...finished (time 05:22s) Changed config files : 03/11 ...finished (time 00:00s) All users : 04/11 ...finished (time 00:00s) All groups : 05/11 ...finished (time 00:00s) Service statuses : 06/11 ...finished (time 00:00s) All installed files : 07/11 ...finished (time 00:03s) All local files : 08/11 ...finished (time 00:26s) All executable files : 09/11 ...finished (time 00:02s) RedHat signed packages : 10/11 ...finished (time 00:00s) CentOS signed packages : 11/11 ...finished (time 00:00s) Assessment of the system, running checks / SCE scripts: 001/096 ...done (Configuration Files to Review) 002/096 ...done (File Lists for Manual Migration) 003/096 ...done (Bacula Backup Software) 004/096 ...done (MySQL configuration) 005/096 ...done (Migration of the MySQL data stack) 006/096 ...done (Changes related to moving from MySQL to MariaDB) 007/096 ...done (PostgreSQL upgrade content) 008/096 ...done (GNOME Desktop Environment underwent several design modifications in CentOS 7 release) 009/096 ...done (KDE Desktop Environment underwent several design modifications in CentOS 7 release) 010/096 ...done (several graphic drivers not supported in CentOS 7) 011/096 ...done (several input drivers not supported in CentOS 7) 012/096 ...done (several kernel networking drivers not available in CentOS 7) 013/096 ...done (several kernel storage drivers not available in CentOS 7) 014/096 ...done (Names, Options and Output Format Changes in arptables) 015/096 ...done (BIND9 running in a chroot environment check.) 016/096 ...done (BIND9 configuration compatibility check) 017/096 ..done (Move dhcpd/dhcprelay arguments from /etc/sysconfig/* to *.service files)) 018/096 ...done (DNSMASQ configuration compatibility check) 019/096 ...done (Dovecot configuration compatibility check) 020/096 ...done (Compatibility Between iptables and ip6tables) 021/096 ...done (Net-SNMP check) 022/096 ...done (Squid configuration compatibility check) 023/096 ...done (Reusable Configuration Files) 024/096 ...done (VCS repositories) 025/096 ...done (Added and extended options for BIND9 configuration) 026/096 ...done (Added options in DNSMASQ configuration) 027/096 ...done (Packages not signed by CentOS) 028/096 ...done (Obsoleted rpms) 029/096 ...done (w3m not available in CentOS 7) 030/096 ...done (report incompatibilities between CentOS 6 and 7 in qemu-guest-agent package) 031/096 ...done (Removed options in coreutils binaries) 032/096 ...done (Removed options in gawk binaries) 033/096 ...done (Removed options in netstat binary) 034/096 ...done (Removed options in quota tools) 035/096 ...done (Removed rpms) 036/096 ...done (Replaced rpms) 037/096 ...done (GMP library incompatibilities) 038/096 ...done (package downgrades) 039/096 ...done (restore custom selinux configuration) 040/096 ...done (General) 041/096 ...done (samba shared directories selinux) 042/096 ...done (CUPS Browsing/BrowsePoll configuration) 043/096 ...done (CVS Package Split) 044/096 ...done (FreeRADIUS Upgrade Verification) 045/096 ...done (httpd configuration compatibility check) 046/096 ...done (bind-dyndb-ldap) 047/096 ...done (Identity Management Server compatibility check) 048/096 ...done (IPA Server CA Verification) 049/096 ...done (NTP configuration) 050/096 ...done (Information on time-sync.target) 051/096 ...done (OpenLDAP /etc/sysconfig and data compatibility) 052/096 ...done (OpenSSH sshd_config migration content) 053/096 ...done (OpenSSH sysconfig migration content) 054/096 ...done (Configuration for quota_nld service) 055/096 ...done (Disk quota netlink message daemon moved into quota-nld package) 056/096 ...done (SSSD compatibility check) 057/096 ...done (Luks encrypted partition) 058/096 ...done (Clvmd and cmirrord daemon management.) 059/096 ...done (State of LVM2 services.) 060/096 ...done (device-mapper-multipath configuration compatibility check) 061/096 ...done (Removal of scsi-target-utils) 062/096 ...done (Configuration for warnquota tool) 063/096 ...done (Disk quota tool warnquota moved into quota-warnquota package) 064/096 ...done (Architecture Support) 065/096 ...done (Binary rebuilds) 066/096 ...done (Debuginfo packages) 067/096 ...done (Cluster and High Availability) 068/096 ...done (Quorum implementation) 069/096 ...done (fix krb5kdc config file) 070/096 ...done (File Systems, Partitions and Mounts Configuration Review) 071/096 ...done (Read Only FHS directories) 072/096 ...done (Sonamebumped libs) 073/096 ...done (SonameKept Reusable Dynamic Libraries) 074/096 ...done (Removed .so libs) 075/096 ...done (In-place Upgrade Requirements for the /usr/ Directory) 076/096 ...done (CA certificate bundles modified) 077/096 ...done (Developer Tool Set packages) 078/096 ...done (Hyper-V) 079/096 ...done (Content for enabling and disabling services based on CentOS 6 system) 080/096 ...done (Check for ethernet interface naming) 081/096 ...done (User modification in /etc/rc.local and /etc/rc.d/rc.local) 082/096 ...done (cgroups configuration compatibility check) 083/096 ...done (Plugable authentication modules (PAM)) 084/096 ...done (Foreign Perl modules) 085/096 ...done (Python 2.7.5) 086/096 ...done (Ruby 2.0.0) 087/096 ...done (SCL collections) 088/096 ...done (System kickstart) 089/096 ...done (YUM) 090/096 ...done (Check for usage of dangerous range of UID/GIDs) 091/096 ...done (Incorrect usage of reserved UID/GIDs) 092/096 ...done (NIS ypbind config files back-up) 093/096 ...done (NIS Makefile back-up) 094/096 ...done (NIS server maps check) 095/096 ...done (NIS server MAXUID and MAXGID limits check) 096/096 ...done (NIS server config file back-up) Assessment finished (time 03:11s) Result table with checks and their results for main contents: --------------------------------------------------------------------------------------------------------------- |Bacula Backup Software |notapplicable | |Names, Options and Output Format Changes in arptables |notapplicable | |BIND9 running in a chroot environment check. |notapplicable | |BIND9 configuration compatibility check |notapplicable | |Move dhcpd/dhcprelay arguments from /etc/sysconfig/* to *.service files |notapplicable | |Dovecot configuration compatibility check |notapplicable | |Squid configuration compatibility check |notapplicable | |Added and extended options for BIND9 configuration |notapplicable | |w3m not available in CentOS 7 |notapplicable | |report incompatibilities between CentOS 6 and 7 in qemu-guest-agent package |notapplicable | |restore custom selinux configuration |notapplicable | |samba shared directories selinux |notapplicable | |FreeRADIUS Upgrade Verification |notapplicable | |bind-dyndb-ldap |notapplicable | |Identity Management Server compatibility check |notapplicable | |IPA Server CA Verification |notapplicable | |OpenLDAP /etc/sysconfig and data compatibility |notapplicable | |SSSD compatibility check |notapplicable | |Clvmd and cmirrord daemon management. |notapplicable | |device-mapper-multipath configuration compatibility check |notapplicable | |Removal of scsi-target-utils |notapplicable | |Quorum implementation |notapplicable | |fix krb5kdc config file |notapplicable | |cgroups configuration compatibility check |notapplicable | |Ruby 2.0.0 |notapplicable | |NIS ypbind config files back-up |notapplicable | |NIS Makefile back-up |notapplicable | |NIS server maps check |notapplicable | |NIS server MAXUID and MAXGID limits check |notapplicable | |NIS server config file back-up |notapplicable | |several graphic drivers not supported in CentOS 7 |pass | |several input drivers not supported in CentOS 7 |pass | |several kernel networking drivers not available in CentOS 7 |pass | |several kernel storage drivers not available in CentOS 7 |pass | |DNSMASQ configuration compatibility check |pass | |Net-SNMP check |pass | |Reusable Configuration Files |pass | |NTP configuration |pass | |Information on time-sync.target |pass | |OpenSSH sshd_config migration content |pass | |Configuration for quota_nld service |pass | |Disk quota netlink message daemon moved into quota-nld package |pass | |Luks encrypted partition |pass | |Configuration for warnquota tool |pass | |Architecture Support |pass | |Debuginfo packages |pass | |Cluster and High Availability |pass | |In-place Upgrade Requirements for the /usr/ Directory |pass | |CA certificate bundles modified |pass | |Developer Tool Set packages |pass | |Hyper-V |pass | |Check for ethernet interface naming |pass | |User modification in /etc/rc.local and /etc/rc.d/rc.local |pass | |Plugable authentication modules (PAM) |pass | |SCL collections |pass | |System kickstart |pass | |Incorrect usage of reserved UID/GIDs |pass | |MySQL configuration |informational | |Migration of the MySQL data stack |informational | |Changes related to moving from MySQL to MariaDB |informational | |Compatibility Between iptables and ip6tables |informational | |VCS repositories |informational | |Added options in DNSMASQ configuration |informational | |Removed options in coreutils binaries |informational | |Removed options in gawk binaries |informational | |Removed options in netstat binary |informational | |Removed options in quota tools |informational | |GMP library incompatibilities |informational | |CVS Package Split |informational | |Disk quota tool warnquota moved into quota-warnquota package |informational | |File Systems, Partitions and Mounts Configuration Review |informational | |Read Only FHS directories |informational | |Sonamebumped libs |informational | |SonameKept Reusable Dynamic Libraries |informational | |Removed .so libs |informational | |Foreign Perl modules |informational | |YUM |informational | |Replaced rpms |fixed | |package downgrades |fixed | |CUPS Browsing/BrowsePoll configuration |fixed | |OpenSSH sysconfig migration content |fixed | |State of LVM2 services. |fixed | |Configuration Files to Review |needs_inspection | |File Lists for Manual Migration |needs_inspection | |PostgreSQL upgrade content |needs_inspection | |Obsoleted rpms |needs_inspection | |httpd configuration compatibility check |needs_inspection | |Binary rebuilds |needs_inspection | |Python 2.7.5 |needs_inspection | |Check for usage of dangerous range of UID/GIDs |needs_inspection | |KDE Desktop Environment underwent several design modifications in CentOS 7 release |needs_action | |Packages not signed by CentOS |needs_action | |Removed rpms |needs_action | |General |needs_action | |Content for enabling and disabling services based on CentOS 6 system |needs_action | |GNOME Desktop Environment underwent several design modifications in CentOS 7 release |fail | --------------------------------------------------------------------------------------------------------------- Tarball with results is stored here /root/preupgrade-results/preupg_results-141102120945.tar.gz . The latest assessment is stored in directory /root/preupgrade . Summary information: We found some critical issues. In-place upgrade is not advised. Read the file /root/preupgrade/result.html for more details. Upload results to UI by command: e.g. preupg -u http://127.0.0.1:8099/submit/ -r /root/preupgrade-results/preupg_results-*.tar.gz .
最後にこれをして ...
# redhat-upgrade-tool-cli --network 7.0 --instrepo http://mirror.centos.org/centos/7/os/x86_64/ --force
、でリブート
# reboot
リブートをするとアップグレードが開始されます。
これも結構な時間がかかります。なおかつ外部からは接続できないので本当に上手くいってるのかわからない。
とりまコーヒーでも入れて休憩でもしよう。
あとはドンと構えとけ
