What's？
Amazon Linux 2 Extras（AL2 Extras Library）のトピックは、EOLを迎えると表示されなくなるようです。
基本的には現在も有効なバージョンを使用することになるかと思いますが、なにかの事情で表示されなくなったトピックを有効にしたくなった時のメモとして。
環境
$ cat /etc/os-release
NAME="Amazon Linux"
VERSION="2"
ID="amzn"
ID_LIKE="centos rhel fedora"
VERSION_ID="2"
PRETTY_NAME="Amazon Linux 2"
ANSI_COLOR="0;33"
CPE_NAME="cpe:2.3:o:amazon:amazon_linux:2"
HOME_URL="https://amazonlinux.com/"
SUPPORT_END="2025-06-30"
$ uname -srvmpio
Linux 4.14.355-271.569.amzn2.x86_64 #1 SMP Tue Nov 5 10:11:37 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Amazon Linux 2 Extras（AL2 Extras Library）の無効化されているトピックを有効化する
Amazon Linux 2 Extras（AL2 Extras Library）に関するページ自体はこちらです。
amazon-linux-extrasコマンドを実行すると、現在利用可能なトピックが表示されます。
$ amazon-linux-extras
2 httpd_modules available [ =1.0 =stable ]
3 memcached1.5 available \
[ =1.5.1 =1.5.16 =1.5.17 ]
9 R3.4 available [ =3.4.3 =stable ]
10 rust1 available \
[ =1.22.1 =1.26.0 =1.26.1 =1.27.2 =1.31.0 =1.38.0
=stable ]
18 libreoffice available \
[ =5.0.6.2_15 =5.3.6.1 =stable ]
19 gimp available [ =2.8.22 ]
20 †docker=latest enabled \
[ =17.12.1 =18.03.1 =18.06.1 =18.09.9 =stable ]
21 mate-desktop1.x available \
[ =1.19.0 =1.20.0 =stable ]
22 GraphicsMagick1.3 available \
[ =1.3.29 =1.3.32 =1.3.34 =stable ]
24 epel available [ =7.11 =stable ]
25 testing available [ =1.0 =stable ]
26 ecs available [ =stable ]
27 †corretto8 available \
[ =1.8.0_192 =1.8.0_202 =1.8.0_212 =1.8.0_222 =1.8.0_232
=1.8.0_242 =stable ]
32 lustre2.10 available \
[ =2.10.5 =2.10.8 =stable ]
34 lynis available [ =stable ]
36 BCC available [ =0.x =stable ]
37 mono available [ =5.x =stable ]
38 nginx1 available [ =stable ]
40 mock available [ =stable ]
43 livepatch available [ =stable ]
45 haproxy2 available [ =stable ]
46 collectd available [ =stable ]
47 aws-nitro-enclaves-cli available [ =stable ]
48 R4 available [ =stable ]
49 kernel-5.4 available [ =stable ]
50 selinux-ng available [ =stable ]
52 tomcat9 available [ =stable ]
53 unbound1.13 available [ =stable ]
54 †mariadb10.5 available [ =stable ]
55 kernel-5.10 available [ =stable ]
56 redis6 available [ =stable ]
59 †postgresql13 available [ =stable ]
60 mock2 available [ =stable ]
61 dnsmasq2.85 available [ =stable ]
62 kernel-5.15 available [ =stable ]
63 †postgresql14 available [ =stable ]
64 firefox available [ =stable ]
65 lustre available [ =stable ]
67 awscli1 available [ =stable ]
68 †php8.2 available [ =stable ]
69 dnsmasq available [ =stable ]
70 unbound1.17 available [ =stable ]
72 collectd-python3 available [ =stable ]
† Note on end-of-support. Use 'info' subcommand.
この時点で、すでに無効になっているトピックは表示されていません。
無効化されたトピックを含めてコマンドで表示できそうな感じがしなかったので、こちらのページで確認します。
有効にしたいトピックを指定してenableします。ここではPHP 8.1を指定しています。
$ sudo amazon-linux-extras enable php8.1
EOLに対する警告が表示されますが、指定したトピックが有効化されます。
Topic php8.1 has end-of-support date of 2024-11-25
2 httpd_modules available [ =1.0 =stable ]
3 memcached1.5 available \
[ =1.5.1 =1.5.16 =1.5.17 ]
9 R3.4 available [ =3.4.3 =stable ]
10 rust1 available \
[ =1.22.1 =1.26.0 =1.26.1 =1.27.2 =1.31.0 =1.38.0
=stable ]
18 libreoffice available \
[ =5.0.6.2_15 =5.3.6.1 =stable ]
19 gimp available [ =2.8.22 ]
20 †docker=latest enabled \
[ =17.12.1 =18.03.1 =18.06.1 =18.09.9 =stable ]
21 mate-desktop1.x available \
[ =1.19.0 =1.20.0 =stable ]
22 GraphicsMagick1.3 available \
[ =1.3.29 =1.3.32 =1.3.34 =stable ]
24 epel available [ =7.11 =stable ]
25 testing available [ =1.0 =stable ]
26 ecs available [ =stable ]
27 †corretto8 available \
[ =1.8.0_192 =1.8.0_202 =1.8.0_212 =1.8.0_222 =1.8.0_232
=1.8.0_242 =stable ]
32 lustre2.10 available \
[ =2.10.5 =2.10.8 =stable ]
34 lynis available [ =stable ]
36 BCC available [ =0.x =stable ]
37 mono available [ =5.x =stable ]
38 nginx1 available [ =stable ]
40 mock available [ =stable ]
43 livepatch available [ =stable ]
45 haproxy2 available [ =stable ]
46 collectd available [ =stable ]
47 aws-nitro-enclaves-cli available [ =stable ]
48 R4 available [ =stable ]
49 kernel-5.4 available [ =stable ]
50 selinux-ng available [ =stable ]
52 tomcat9 available [ =stable ]
53 unbound1.13 available [ =stable ]
54 †mariadb10.5 available [ =stable ]
55 kernel-5.10 available [ =stable ]
56 redis6 available [ =stable ]
59 †postgresql13 available [ =stable ]
60 mock2 available [ =stable ]
61 dnsmasq2.85 available [ =stable ]
62 kernel-5.15 available [ =stable ]
63 †postgresql14 available [ =stable ]
64 firefox available [ =stable ]
65 lustre available [ =stable ]
66 *php8.1=latest enabled [ =stable ]
67 awscli1 available [ =stable ]
_ †php8.2 available [ =stable ]
69 dnsmasq available [ =stable ]
70 unbound1.17 available [ =stable ]
72 collectd-python3 available [ =stable ]
* Extra topic has reached end of support.
† Note on end-of-support. Use 'info' subcommand.
Now you can install:
# yum clean metadata
# yum install php-cli php-pdo php-fpm php-json php-mysqlnd
ここですね。
66 *php8.1=latest enabled [ =stable ]
これでトピックがインストールできるようになります。
$ sudo amazon-linux-extras install php8.1