Di posting sebelumnya, kami melihat cara memperbarui sistem CentOS 8 / RHEL 8 untuk mendapatkan pembaruan terbaru di sistem Anda. Jarang, pembaruan dapat merusak sistem atau aplikasi Anda yang berjalan di atasnya.
Dalam hal ini, Anda mungkin perlu mengembalikan paket yang diperbarui ke versi sebelumnya.
Dalam posting ini, kita akan melihat langkah-langkah untuk mengembalikan patching OS pada CentOS 8 / RHEL 8.
Riwayat Pembaruan
Perintah yum history akan mencantumkan semua aktivitas yang Anda lakukan dengan perintah yum, termasuk patching OS.
yum history
Dari output di atas, Anda dapat melihat
ID 4 :Penambalan OS (Baris perintah:perbarui) sebagaimana adanya (I) nstall dan (U) pdate tindakan dari 55 paket.
ID 3 :Pembaruan kernel (Baris perintah:update -y kernel) (I) nstall aksi 3 paket
Anda juga dapat mengetahui paket apa saja yang diperbarui selama ID riwayat 4 atau 3 dengan perintah di bawah ini.
Saya sedang memeriksa informasi ID riwayat 3.
yum history info 3
Keluaran:
Transaction ID : 3
Begin time : Wed 23 Oct 2019 04:50:02 AM EDT
Begin rpmdb : 390:36e45bfafdb36c1b565f744db484c136e60d027c
End time : Wed 23 Oct 2019 04:52:29 AM EDT (147 seconds)
End rpmdb : 393:2dbf7c6498447e95a25b76af117b689bccd11b20
User : root
Return-Code : Success
Releasever : 8
Command Line : update -y kernel
Packages Altered:
Install kernel-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
Install kernel-core-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
Install kernel-modules-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
[root@centos8 ~]# yum history info 4
Transaction ID : 4
Begin time : Wed 23 Oct 2019 04:57:30 AM EDT
Begin rpmdb : 393:2dbf7c6498447e95a25b76af117b689bccd11b20
End time : Wed 23 Oct 2019 05:02:37 AM EDT (5 minutes)
End rpmdb : 394:2263176203aedb3134fb7478167919e2cb60450b
User : root
Return-Code : Success
Releasever : 8
Command Line : update
Packages Altered:
Install grub2-tools-efi-1:2.02-66.el8_0.1.x86_64 @BaseOS
Upgrade bash-4.4.19-8.el8_0.x86_64 @BaseOS
Upgraded bash-4.4.19-7.el8.x86_64 @@System
Upgrade bind-export-libs-32:9.11.4-17.P2.el8_0.1.x86_64 @BaseOS
Upgraded bind-export-libs-32:9.11.4-16.P2.el8.x86_64 @@System
Upgrade grub2-common-1:2.02-66.el8_0.1.noarch @BaseOS
Upgraded grub2-common-1:2.02-66.el8.noarch @@System
. . .
. . .
Upgrade sssd-nfs-idmap-2.0.0-43.el8_0.3.x86_64 @BaseOS
Upgraded sssd-nfs-idmap-2.0.0-43.el8.x86_64 @@System
Upgrade systemd-239-13.el8_0.5.x86_64 @BaseOS
Upgraded systemd-239-13.el8.x86_64 @@System
Upgrade systemd-libs-239-13.el8_0.5.x86_64 @BaseOS
Upgraded systemd-libs-239-13.el8.x86_64 @@System
Upgrade systemd-pam-239-13.el8_0.5.x86_64 @BaseOS
Upgraded systemd-pam-239-13.el8.x86_64 @@System
Upgrade systemd-udev-239-13.el8_0.5.x86_64 @BaseOS
Upgraded systemd-udev-239-13.el8.x86_64 @@System
Upgrade epel-release-8-6.el8.noarch @epel
Upgraded epel-release-8-5.el8.noarch @@System
Scriptlet output:
1 warning: /etc/shadow created as /etc/shadow.rpmnew
Demikian juga, Anda dapat melihat informasi ID lain.
Kembalikan Pembaruan
Setelah Anda mengidentifikasi ID patch OS dan ID pembaruan Kernel (Opsional karena sebagian besar waktu yang diperbarui Kernel diinstal bersama dengan patch OS), silakan lanjutkan untuk mengembalikan pembaruan satu per satu.
Kernel
Langkah ini tidak berlaku jika Kernel diinstal bersama dengan patch OS (yum update).
Gunakan yum history undo dengan 3 untuk mengembalikan aktivitas (hapus pembaruan kernel).
yum history undo 3
Keluaran:
Last metadata expiration check: 1:24:58 ago on Wed 23 Oct 2019 05:19:07 AM EDT.
Undoing transaction 3, from Wed 23 Oct 2019 04:50:02 AM EDT
Install kernel-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
Install kernel-core-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
Install kernel-modules-4.18.0-80.11.2.el8_0.x86_64 @BaseOS
Dependencies resolved.
============================================================================================================================
Package Arch Version Repository Size
============================================================================================================================
Removing:
kernel x86_64 4.18.0-80.11.2.el8_0 @BaseOS 0
kernel-core x86_64 4.18.0-80.11.2.el8_0 @BaseOS 57 M
kernel-modules x86_64 4.18.0-80.11.2.el8_0 @BaseOS 19 M
Transaction Summary
============================================================================================================================
Remove 3 Packages
Freed space: 76 M
Is this ok [y/N]: Y << Press Y and Enter to revert Kernel
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Erasing : kernel-4.18.0-80.11.2.el8_0.x86_64 1/3
Running scriptlet: kernel-4.18.0-80.11.2.el8_0.x86_64 1/3
Erasing : kernel-modules-4.18.0-80.11.2.el8_0.x86_64 2/3
Running scriptlet: kernel-modules-4.18.0-80.11.2.el8_0.x86_64 2/3
Running scriptlet: kernel-core-4.18.0-80.11.2.el8_0.x86_64 3/3
Erasing : kernel-core-4.18.0-80.11.2.el8_0.x86_64 3/3
Running scriptlet: kernel-core-4.18.0-80.11.2.el8_0.x86_64 3/3
Verifying : kernel-4.18.0-80.11.2.el8_0.x86_64 1/3
Verifying : kernel-core-4.18.0-80.11.2.el8_0.x86_64 2/3
Verifying : kernel-modules-4.18.0-80.11.2.el8_0.x86_64 3/3
Removed:
kernel-4.18.0-80.11.2.el8_0.x86_64 kernel-core-4.18.0-80.11.2.el8_0.x86_64 kernel-modules-4.18.0-80.11.2.el8_0.x86_64
Complete!
Paket
Gunakan yum history undo dengan 4 untuk mengembalikan aktivitas (kembalikan pembaruan OS).
yum history undo 4
Keluaran:
Last metadata expiration check: 1:38:10 ago on Wed 23 Oct 2019 05:19:07 AM EDT.
Undoing transaction 4, from Wed 23 Oct 2019 04:57:30 AM EDT
Install grub2-tools-efi-1:2.02-66.el8_0.1.x86_64 @BaseOS
Upgrade bash-4.4.19-8.el8_0.x86_64 @BaseOS
Upgraded bash-4.4.19-7.el8.x86_64 @@System
Upgrade bind-export-libs-32:9.11.4-17.P2.el8_0.1.x86_64 @BaseOS
Upgraded bind-export-libs-32:9.11.4-16.P2.el8.x86_64 @@System
Upgrade grub2-common-1:2.02-66.el8_0.1.noarch @BaseOS
Upgraded grub2-common-1:2.02-66.el8.noarch @@System
Upgrade grub2-pc-1:2.02-66.el8_0.1.x86_64 @BaseOS
Upgraded grub2-pc-1:2.02-66.el8.x86_64 @@System
Upgrade grub2-pc-modules-1:2.02-66.el8_0.1.noarch @BaseOS
. . .
. . .
Upgrade epel-release-8-6.el8.noarch @epel
Upgraded epel-release-8-5.el8.noarch @@System
Dependencies resolved.
============================================================================================================================
Package Arch Version Repository Size
============================================================================================================================
Removing:
grub2-tools-efi x86_64 1:2.02-66.el8_0.1 @BaseOS 1.9 M
Downgrading:
bash x86_64 4.4.19-7.el8 BaseOS 1.5 M
bind-export-libs x86_64 32:9.11.4-16.P2.el8 BaseOS 1.1 M
grub2-common noarch 1:2.02-66.el8 BaseOS 880 k
grub2-pc x86_64 1:2.02-66.el8 BaseOS 35 k
grub2-pc-modules noarch 1:2.02-66.el8 BaseOS 899 k
. . .
. . .
systemd x86_64 239-13.el8 BaseOS 3.4 M
systemd-libs x86_64 239-13.el8 BaseOS 550 k
systemd-pam x86_64 239-13.el8 BaseOS 221 k
systemd-udev x86_64 239-13.el8 BaseOS 1.3 M
epel-release noarch 8-5.el8 extras 22 k
Transaction Summary
============================================================================================================================
Remove 1 Package
Downgrade 50 Packages
Total download size: 46 M
Is this ok [y/N]: Y << Press Y and Enter to Revert Updates
Downloading Packages:
(1/50): bash-4.4.19-7.el8.x86_64.rpm 966 kB/s | 1.5 MB 00:01
(2/50): grub2-common-2.02-66.el8.noarch.rpm 530 kB/s | 880 kB 00:01
(3/50): grub2-pc-2.02-66.el8.x86_64.rpm 537 kB/s | 35 kB 00:00
(4/50): bind-export-libs-9.11.4-16.P2.el8.x86_64.rpm 640 kB/s | 1.1 MB 00:01
(5/50): grub2-tools-2.02-66.el8.x86_64.rpm 3.7 MB/s | 1.9 MB 00:00
(6/50): grub2-pc-modules-2.02-66.el8.noarch.rpm 1.4 MB/s | 899 kB 00:00
(7/50): grub2-tools-minimal-2.02-66.el8.x86_64.rpm 2.0 MB/s | 196 kB 00:00
. . .
. . .
(46/50): systemd-pam-239-13.el8.x86_64.rpm 1.6 MB/s | 221 kB 00:00
(47/50): selinux-policy-targeted-3.14.1-61.el8.noarch.rpm 3.7 MB/s | 15 MB 00:04
(48/50): python3-libs-3.6.8-1.el8.0.1.x86_64.rpm 1.6 MB/s | 7.9 MB 00:04
(49/50): systemd-udev-239-13.el8.x86_64.rpm 1.7 MB/s | 1.3 MB 00:00
(50/50): epel-release-8-5.el8.noarch.rpm 77 kB/s | 22 kB 00:00
----------------------------------------------------------------------------------------------------------------------------
Total 4.1 MB/s | 46 MB 00:11
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Running scriptlet: bash-4.4.19-7.el8.x86_64 1/1
Downgrading : bash-4.4.19-7.el8.x86_64 1/101
Running scriptlet: bash-4.4.19-7.el8.x86_64 1/101
Downgrading : platform-python-3.6.8-1.el8.0.1.x86_64 2/101
Running scriptlet: platform-python-3.6.8-1.el8.0.1.x86_64 2/101
Downgrading : python3-libs-3.6.8-1.el8.0.1.x86_64 3/101
Downgrading : grub2-common-1:2.02-66.el8.noarch 4/101
. . .
. . .
Verifying : epel-release-8-5.el8.noarch 99/101
Verifying : epel-release-8-6.el8.noarch 100/101
Verifying : grub2-tools-efi-1:2.02-66.el8_0.1.x86_64 101/101
Downgraded:
bash-4.4.19-7.el8.x86_64 bind-export-libs-32:9.11.4-16.P2.el8.x86_64
grub2-common-1:2.02-66.el8.noarch grub2-pc-1:2.02-66.el8.x86_64
grub2-pc-modules-1:2.02-66.el8.noarch grub2-tools-1:2.02-66.el8.x86_64
grub2-tools-extra-1:2.02-66.el8.x86_64 grub2-tools-minimal-1:2.02-66.el8.x86_64
initscripts-10.00.1-1.el8.x86_64 iptables-1.8.2-9.el8.x86_64
iptables-ebtables-1.8.2-9.el8.x86_64 iptables-libs-1.8.2-9.el8.x86_64
kernel-tools-4.18.0-80.el8.x86_64 kernel-tools-libs-4.18.0-80.el8.x86_64
kmod-25-11.el8.x86_64 kmod-libs-25-11.el8.x86_64
kpartx-0.7.8-7.el8.x86_64 libdnf-0.22.5-4.el8.x86_64
libnfsidmap-1:2.3.3-14.el8.x86_64 libsss_autofs-2.0.0-43.el8.x86_64
libsss_certmap-2.0.0-43.el8.x86_64 libsss_idmap-2.0.0-43.el8.x86_64
libsss_nss_idmap-2.0.0-43.el8.x86_64 libsss_sudo-2.0.0-43.el8.x86_64
microcode_ctl-4:20180807a-2.el8.x86_64 p11-kit-0.23.14-4.el8.x86_64
p11-kit-trust-0.23.14-4.el8.x86_64 platform-python-3.6.8-1.el8.0.1.x86_64
python3-hawkey-0.22.5-4.el8.x86_64 python3-libdnf-0.22.5-4.el8.x86_64
python3-libs-3.6.8-1.el8.0.1.x86_64 python3-perf-4.18.0-80.el8.x86_64
python3-rpm-4.14.2-9.el8.x86_64 rpm-4.14.2-9.el8.x86_64
rpm-build-libs-4.14.2-9.el8.x86_64 rpm-libs-4.14.2-9.el8.x86_64
rpm-plugin-selinux-4.14.2-9.el8.x86_64 rpm-plugin-systemd-inhibit-4.14.2-9.el8.x86_64
selinux-policy-3.14.1-61.el8.noarch selinux-policy-targeted-3.14.1-61.el8.noarch
setup-2.12.2-1.el8.noarch sssd-client-2.0.0-43.el8.x86_64
sssd-common-2.0.0-43.el8.x86_64 sssd-kcm-2.0.0-43.el8.x86_64
sssd-nfs-idmap-2.0.0-43.el8.x86_64 systemd-239-13.el8.x86_64
systemd-libs-239-13.el8.x86_64 systemd-pam-239-13.el8.x86_64
systemd-udev-239-13.el8.x86_64 epel-release-8-5.el8.noarch
Removed:
grub2-tools-efi-1:2.02-66.el8_0.1.x86_64
Complete! Mulai ulang sistem.
reboot
Verifikasi
Kernel
Sangat bahwa sistem di-boot dengan kernel lama menggunakan perintah di bawah ini.
uname -a
Keluaran:
Linux centos8.itzgeek.local 4.18.0-80.el8.x86_64 #1 SMP Tue Jun 4 09:19:46 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Paket
Bandingkan versi paket dan pastikan paket diturunkan dengan rpm -qa
Kesimpulan
Itu saja. Saya harap posting ini membantu Anda mengembalikan patch OS pada CentOS 8 / RHEL 8. Silakan bagikan tanggapan Anda di bagian komentar.
Cara Menginstal Zabbix Server 5.0 / 4.0 Pada CentOS 8 / RHEL 8
Cara Menginstal Kaktus Di CentOS 8 / RHEL 8