#問題
IBM CloudのCentOS8にて、dnf updateでパッケージを最新化できない。以下のエラーがでる。
[root@syasuda ~]# cat /etc/redhat-release
CentOS Linux release 8.2.2004 (Core)
[root@syasuda ~]# dnf update
Last metadata expiration check: 2:23:09 ago on Mon Sep 28 18:34:38 2020.
Error:
Problem: cannot install both centos-gpg-keys-8.2-2.2004.0.2.el8.noarch and centos-gpg-keys-8.2-2.2004.0.1.el8.noarch
- package centos-repos-8.2-2.2004.0.1.el8.x86_64 requires centos-gpg-keys = 8.2-2.2004.0.1.el8, but none of the providers can be installed
- cannot install the best update candidate for package centos-gpg-keys-8.2-2.2004.0.1.el8.noarch
- problem with installed package centos-repos-8.2-2.2004.0.1.el8.x86_64
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
これは、centos-gpg-keysが原因のようだ。
[root@syasuda ~]# dnf update centos-gpg-keys
Last metadata expiration check: 1:00:53 ago on Wed Sep 30 12:00:28 2020.
Error:
Problem: cannot install both centos-gpg-keys-8.2-2.2004.0.2.el8.noarch and centos-gpg-keys-8.2-2.2004.0.1.el8.noarch
- package centos-repos-8.2-2.2004.0.1.el8.x86_64 requires centos-gpg-keys = 8.2-2.2004.0.1.el8, but none of the providers can be installed
- cannot install the best update candidate for package centos-gpg-keys-8.2-2.2004.0.1.el8.noarch
- problem with installed package centos-repos-8.2-2.2004.0.1.el8.x86_64
(try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
[root@syasuda ~]# dnf provides centos-gpg-keys
Last metadata expiration check: 2:26:39 ago on Mon Sep 28 18:34:38 2020.
centos-gpg-keys-8.2-2.2004.0.1.el8.noarch : CentOS Linux RPM keys
Repo : @System
Matched from:
Provide : centos-gpg-keys = 8.2-2.2004.0.1.el8
centos-gpg-keys-8.2-2.2004.0.2.el8.noarch : CentOS Linux RPM keys
Repo : BaseOS
Matched from:
Provide : centos-gpg-keys = 8.2-2.2004.0.2.el8
失敗例
無理やり--allowerasingオプションを付けて更新してみたら、/etc/passwdなど含めて色々なファイルが更新されるので、やめておいた方がいい（と思う）
[root@syasuda ~]# dnf update centos-gpg-keys --allowerasing
Last metadata expiration check: 1:01:48 ago on Wed Sep 30 12:00:28 2020.
Dependencies resolved.
===================================================================================================================================================================
Package Architecture Version Repository Size
===================================================================================================================================================================
Upgrading:
centos-gpg-keys noarch 8.2-2.2004.0.2.el8 BaseOS 12 k
Removing dependent packages:
audit x86_64 3.0-0.17.20191104git1c2f876.el8 @7993e58f8c307da5e7cbdc3c8d2489fc 656 k
centos-release x86_64 8.2-2.2004.0.1.el8 @7993e58f8c307da5e7cbdc3c8d2489fc 25 k
centos-repos x86_64 8.2-2.2004.0.1.el8 @7993e58f8c307da5e7cbdc3c8d2489fc 9.4 k
cloud-init noarch 19.4-1.el8.7 @3fffc052a6c566f3c93d11ec36329abc 3.0 M
initscripts x86_64 10.00.6-1.el8_2.1 @7993e58f8c307da5e7cbdc3c8d2489fc 1.0 M
setup noarch 2.12.2-5.el8 @7993e58f8c307da5e7cbdc3c8d2489fc 708 k
shadow-utils x86_64 2:4.6-8.el8 @7993e58f8c307da5e7cbdc3c8d2489fc 5.1 M
Transaction Summary
===================================================================================================================================================================
Upgrade 1 Package
Remove 7 Packages
Total download size: 12 k
Is this ok [y/N]: y
Downloading Packages:
centos-gpg-keys-8.2-2.2004.0.2.el8.noarch.rpm 36 kB/s | 12 kB 00:00
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 36 kB/s | 12 kB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Running scriptlet: centos-gpg-keys-8.2-2.2004.0.2.el8.noarch 1/1
Upgrading : centos-gpg-keys-8.2-2.2004.0.2.el8.noarch 1/9
Running scriptlet: audit-3.0-0.17.20191104git1c2f876.el8.x86_64 2/9
Erasing : audit-3.0-0.17.20191104git1c2f876.el8.x86_64 2/9
Running scriptlet: audit-3.0-0.17.20191104git1c2f876.el8.x86_64 2/9
Running scriptlet: cloud-init-19.4-1.el8.7.noarch 3/9
Erasing : cloud-init-19.4-1.el8.7.noarch 3/9
warning: /etc/cloud/cloud.cfg saved as /etc/cloud/cloud.cfg.rpmsave
Running scriptlet: cloud-init-19.4-1.el8.7.noarch 3/9
Running scriptlet: initscripts-10.00.6-1.el8_2.1.x86_64 4/9
Erasing : initscripts-10.00.6-1.el8_2.1.x86_64 4/9
Running scriptlet: initscripts-10.00.6-1.el8_2.1.x86_64 4/9
Erasing : shadow-utils-2:4.6-8.el8.x86_64 5/9
Erasing : setup-2.12.2-5.el8.noarch 6/9
warning: /etc/shadow saved as /etc/shadow.rpmsave
warning: /etc/passwd saved as /etc/passwd.rpmsave
warning: /etc/hosts saved as /etc/hosts.rpmsave
warning: /etc/gshadow saved as /etc/gshadow.rpmsave
warning: /etc/group saved as /etc/group.rpmsave
Erasing : centos-release-8.2-2.2004.0.1.el8.x86_64 7/9
Running scriptlet: centos-release-8.2-2.2004.0.1.el8.x86_64 7/9
Erasing : centos-repos-8.2-2.2004.0.1.el8.x86_64 8/9
warning: /etc/yum.repos.d/CentOS-fasttrack.repo saved as /etc/yum.repos.d/CentOS-fasttrack.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-centosplus.repo saved as /etc/yum.repos.d/CentOS-centosplus.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-PowerTools.repo saved as /etc/yum.repos.d/CentOS-PowerTools.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-HA.repo saved as /etc/yum.repos.d/CentOS-HA.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-Extras.repo saved as /etc/yum.repos.d/CentOS-Extras.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-CR.repo saved as /etc/yum.repos.d/CentOS-CR.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-Base.repo saved as /etc/yum.repos.d/CentOS-Base.repo.rpmsave
warning: /etc/yum.repos.d/CentOS-AppStream.repo saved as /etc/yum.repos.d/CentOS-AppStream.repo.rpmsave
Cleanup : centos-gpg-keys-8.2-2.2004.0.1.el8.noarch 9/9
Running scriptlet: centos-gpg-keys-8.2-2.2004.0.1.el8.noarch 9/9
Verifying : centos-gpg-keys-8.2-2.2004.0.2.el8.noarch 1/9
Verifying : centos-gpg-keys-8.2-2.2004.0.1.el8.noarch 2/9
Verifying : audit-3.0-0.17.20191104git1c2f876.el8.x86_64 3/9
Verifying : centos-release-8.2-2.2004.0.1.el8.x86_64 4/9
Verifying : centos-repos-8.2-2.2004.0.1.el8.x86_64 5/9
Verifying : cloud-init-19.4-1.el8.7.noarch 6/9
Verifying : initscripts-10.00.6-1.el8_2.1.x86_64 7/9
Verifying : setup-2.12.2-5.el8.noarch 8/9
Verifying : shadow-utils-2:4.6-8.el8.x86_64 9/9
Upgraded:
centos-gpg-keys-8.2-2.2004.0.2.el8.noarch
Removed:
audit-3.0-0.17.20191104git1c2f876.el8.x86_64 centos-release-8.2-2.2004.0.1.el8.x86_64 centos-repos-8.2-2.2004.0.1.el8.x86_64 cloud-init-19.4-1.el8.7.noarch
initscripts-10.00.6-1.el8_2.1.x86_64 setup-2.12.2-5.el8.noarch shadow-utils-2:4.6-8.el8.x86_64
Complete!
#（とりあえず無難な）解決方法。
もっといい方法があれば教えてください。
- centos-gpg-keysを更新しなければいいのだから、
/etc/dnf/dnf.confに、exclude=centos-gpg-keysを追加。
[root@syasuda ~]# grep centos-gpg-keys /etc/dnf/dnf.conf
exclude=centos-gpg-keys
- この状態だと、dnf updateが可能。
[root@syasuda ~]# dnf update
Last metadata expiration check: 1:43:12 ago on Tue Sep 29 23:24:10 2020.
Dependencies resolved.
===================================================================================================================================================================
Package Architecture Version Repository Size
===================================================================================================================================================================
Installing:
kernel x86_64 4.18.0-193.19.1.el8_2 BaseOS 2.8 M
kernel-core x86_64 4.18.0-193.19.1.el8_2 BaseOS 28 M
kernel-modules x86_64 4.18.0-193.19.1.el8_2 BaseOS 23 M
Upgrading:
bind-export-libs x86_64 32:9.11.13-6.el8_2.1 BaseOS 1.1 M
centos-release x86_64 8.2-2.2004.0.2.el8 BaseOS 21 k
dnf-plugins-core noarch 4.0.12-4.el8_2 BaseOS 64 k
initscripts x86_64 10.00.6-1.el8_2.2 BaseOS 338 k
kernel-tools x86_64 4.18.0-193.19.1.el8_2 BaseOS 3.0 M
kernel-tools-libs x86_64 4.18.0-193.19.1.el8_2 BaseOS 2.8 M
libcroco x86_64 0.6.12-4.el8_2.1 BaseOS 113 k
librepo x86_64 1.11.0-3.el8_2 BaseOS 90 k
libteam x86_64 1.29-1.el8_2.2 BaseOS 63 k
python3-dnf-plugins-core noarch 4.0.12-4.el8_2 BaseOS 204 k
python3-librepo x86_64 1.11.0-3.el8_2 BaseOS 52 k
python3-perf x86_64 4.18.0-193.19.1.el8_2 BaseOS 2.9 M
python3-syspurpose x86_64 1.26.20-1.el8_2 BaseOS 287 k
selinux-policy noarch 3.14.3-41.el8_2.6 BaseOS 615 k
selinux-policy-targeted noarch 3.14.3-41.el8_2.6 BaseOS 15 M
teamd x86_64 1.29-1.el8_2.2 BaseOS 128 k
zlib x86_64 1.2.11-16.el8_2 BaseOS 102 k
Transaction Summary
===================================================================================================================================================================
Install 3 Packages
Upgrade 17 Packages
Total download size: 81 M
Is this ok [y/N]: