Apakah Anda sudah menunggu ini? Setidaknya, saya pernah. Saya bukan penggemar berat mencopot seluruh OS untuk menginstal versi terbaru, tetapi saya tidak punya pilihan sampai CentOS 7 dirilis – artinya, CentOS 7 hadir dengan fitur pemutakhiran di tempat yang memungkinkan Anda meningkatkan dari CentOS 6. x ke 7 tanpa menghapus/memformat seluruh OS. Keren banget kan?
Kami akan menggunakan metode resmi untuk meningkatkan dari CentOS 6.x ke 7.
Langkah Terlibat:
- Anda harus memiliki hak 'root'
- Pindai OS Anda dengan Alat Asisten Pra-upgrade.
- Impor Kunci GPG CentOS 7
- Tingkatkan versi menggunakan Alat Peningkatan RedHat
Disclaimer: Although we are going to follow official upgradation method, there are chances that the upgrade might fail. There are plenty of reasons - this method is still not matured enough to handle packages that were not installed from official repositories. For instance, if you had installed packages from EPEL repository or any other third party repos, then those packages might have problems. It's advised to try upgradation procedure on a freshly installed CentOS 6.x. Follow this tutorial at your own risk and Techglimpse or the author is not responsible if the process didn't work for you.
Pindai OS menggunakan Alat Asisten Pra-upgrade
Instal 'Alat Asisten Pra-peningkatan versi'
- Buat file repo
- $vim /etc/yum.repos.d/upgradetool.repo
- Salin dan tempel baris di bawah ini di upgradetool.repo
[upg] name=CentOS-$releasever - Upgrade Tool baseurl=http://dev.centos.org/centos/6/upg/x86_64/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
- Instal Alat Asisten Pra-upgrade
#yum install redhat-upgrade-tool preupgrade-assistant-contents
Pindai menggunakan pra-upg
#preupg
Catatan : Jika Anda mendapatkan kesalahan saat menjalankan pra-upg, Anda perlu memeriksa versi Python. Klik di sini untuk mempelajari lebih lanjut tentang kesalahan tersebut.
Alat Asisten Pra-upgrade akan memindai seluruh sistem operasi dan membuat laporan berbagai paket dan status peningkatannya.
Contoh keluaran:
#preupg :::::::::::::::::::::::::::::::::::::::::::: |device-mapper-multipath configuration compatibility check |fixed | |Configuration Files to Review |needs_inspection | |File Lists for Manual Migration |needs_inspection | |Obsoleted rpms |needs_inspection | |Binary rebuilds |needs_inspection | |Python 2.7.5 |needs_inspection | |Check for usage of dangerous range of UID/GIDs |needs_inspection | |Packages not signed by CentOS |needs_action | |Removed rpms |needs_action | |General |needs_action | |Sonamebumped libs |needs_action | |Content for enabling and disabling services based on CentOS 6 system |needs_action | |User modification in /etc/rc.local and /etc/rc.d/rc.local |needs_action | |cgroups configuration compatibility check |needs_action | -------------------------------------------------------------------------------- ------------------------------- Tarball with results is stored here /root/preupgrade-results/preupg_results-1512 15073258.tar.gz . The latest assessment is stored in directory /root/preupgrade . Summary information: We found some potential in-place upgrade risks. 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 .
Catatan:Baca hasil pra-peningkatan dengan cermat dan pahami komplikasinya sebelum memulai proses peningkatan.
Impor Kunci GPG CentOS
#rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-7
Catatan: Anda mungkin ingin mempelajari lebih lanjut tentang Kunci GPG YUM .
Tingkatkan dari CentOS 6.x ke 7 menggunakan redhat-upgrade-tool-cli
#/usr/bin/redhat-upgrade-tool-cli --network 7 --instrepo=http://mirror.centos.org/centos/7/os/x86_64
Contoh keluaran:
:::::::::::::::::::::::::::::::::::: INPLACERISK: MEDIUM: having one of [nss elfutils-libs audit-libs gdisk libX11-common ca-certificates glusterfs kpartx openscap pixman libxcb libX11 firefox tzdata nspr elfutils-libelf openldap glusterfs-api device-mapper-multipath libnl3 mdadm glusterfs-libs nss-sysinit nss-tools spice-server device-mapper- multipath-libs netcf-libs libdrm libpciaccess audit-libs-python gtk2 audit nss-util] package installed breaks upgrade INPLACERISK: MEDIUM: a number of default configuation settings have changed in CentOS7. Users should verify that their devices are still optimally configured INPLACERISK: MEDIUM: We detected some soname bumps in the libraries installed on the system. This may break the functionality of some of your 3rd party applications. They may need rebuild. Please check their requirements. INPLACERISK: MEDIUM: We detected some .so libraries installed on the system were removed between CentOS 6 and CentOS 7. This may break the functionality of some of your 3rd party applications. ::::::::::::::::::::::::::::::::: INPLACERISK: SLIGHT: Some binaries untracked by RPM were discovered on the system and may need rebuild after upgrade. INPLACERISK: SLIGHT: Some scripts untracked by RPM were discovered on the system and may not work properly after upgrade. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/_markerlib is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/argparse-1.4.0.dist-info is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/gluster is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/ioprocess is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/mom is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/pip is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/pip-7.1.2.dist-info is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/pkg_resources is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/setuptools-18.3.2.dist-info is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/vdsm is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/virtualenv_support is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/wheel is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/wheel-0.26.0.dist-info is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/yajsonrpc is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib/python2.6/site-packages/zombiereaper is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib64/python2.6/site-packages/cpopen is not owned by any RPM package. INPLACERISK: SLIGHT: /usr/lib64/python2.6/site-packages/gtk-2.0 is owned by an RPM package that was not signed by CentOS. INPLACERISK: SLIGHT: /usr/lib64/python2.6/site-packages/pycrypto-2.6.1-py2.6.egg-info is not owned by any RPM package. INPLACERISK: NONE: Custom selinux configuration has been saved and it will be restored by a postupgrade script after the system upgrade. ::::::::::::::::::::::::::::::::::::::::::::::: Y ::::::::::::::::::::::::::::::::::::::::::::::::::: (651/662): xz-libs-5.1.2-12alpha.el7.i686.rpm | 107 kB 00:00 (652/662): xz-libs-5.1.2-12alpha.el7.x86_64.rpm | 102 kB 00:00 (653/662): xz-lzma-compat-5.1.2-12alpha.el7.x86_64.rpm | 18 kB 00:00 (654/662): yajl-2.0.4-4.el7.x86_64.rpm | 39 kB 00:00 (655/662): yum-3.4.3-132.el7.centos.0.1.noarch.rpm | 1.2 MB 00:01 (656/662): yum-metadata-parser-1.1.4-10.el7.x86_64.rpm | 28 kB 00:00 (657/662): yum-plugin-fastestmirror-1.1.31-34.el7.noarch | 30 kB 00:00 (658/662): yum-utils-1.1.31-34.el7.noarch.rpm | 113 kB 00:00 (659/662): zip-3.0-10.el7.x86_64.rpm | 260 kB 00:00 (660/662): zlib-1.2.7-15.el7.i686.rpm | 90 kB 00:00 (661/662): zlib-1.2.7-15.el7.x86_64.rpm | 89 kB 00:00 (662/662): zlib-devel-1.2.7-15.el7.x86_64.rpm | 50 kB 00:00 testing upgrade transaction rpm transaction 100% [=========================================================] rpm install 100% [=============================================================] setting up system for upgrade Finished. Reboot to start upgrade.
Catatan:Langkah di atas akan memakan waktu dan sistem Anda akan reboot beberapa kali untuk menyelesaikan upgrade. Selama proses tersebut, image booting diambil dan paket yang diperlukan didownload sebelum penginstalan dapat dimulai setelah booting ulang.
Anda juga dapat menggunakan ‘centos-upgrade-tool’.
Setelah reboot:
Starting System Upgrade... [ 28.890048] upgrade[1461]: starting upgrade hook [ 28.963833] upgrade[1461]: preparing for upgrade... [ 29.003036] upgrade[1461]: found 662 packages to install [ 29.004901] upgrade[1461]: building RPM transaction, one moment... [ 40.646364] upgrade[1461]: 662 packages to install, 461 to erase [ 40.648261] upgrade[1461]: checking RPM transaction... [ 41.609272] upgrade[1461]: non-fatal problems with RPM transaction: [ 41.659882] upgrade[1461]: libpython2.6.so.1.0()(64bit) is needed by (installed) python-cheetah-2.4.1-1.el6.x86_64 [ 41.662478] upgrade[1461]: libpython2.6.so.1.0()(64bit) is needed by (installed) python-crypto-2.0.1-22.el6.x86_64 [ 41.664632] upgrade[1461]: libpython2.6.so.1.0()(64bit) is needed by (installed) python-iwlib-0.1-1.2.el6.x86_64 [ 41.666577] upgrade[1461]: libpython2.6.so.1.0()(64bit) is needed by (installed) python-cpopen-1.4-0.el6.x86_64 :::::::::::::::::::::::::::::::::::::::
Reboot lagi dan sistem Anda sekarang berhasil ditingkatkan ke CentOS 7.
Memutakhirkan PHP 5.x ke PHP 7.0 di server CentOS/RedHat menggunakan Yum
Bagaimana Memperbaiki ImportError:Tidak ada modul bernama virtualenv di CentOS?