Linux

背景

[root@poloyy ~]# yum makecache fast
usage: yum makecache [-c [config file]] [-q] [-v] [--version]
                     [--installroot [path]] [--nodocs] [--noplugins]
                     [--enableplugin [plugin]] [--disableplugin [plugin]]
                     [--releasever RELEASEVER] [--setopt SETOPTS]
                     [--skip-broken] [-h] [--allowerasing] [-b | --nobest]
                     [-C] [-R [minutes]] [-d [debug level]] [--debugsolver]
                     [--showduplicates] [-e ERRORLEVEL] [--obsoletes]
                     [--rpmverbosity [debug level name]] [-y] [--assumeno]
                     [--enablerepo [repo]] [--disablerepo [repo] | --repo
                     [repo]] [--enable | --disable] [-x [package]]
                     [--disableexcludes [repo]] [--repofrompath [repo,path]]
                     [--noautoremove] [--nogpgcheck] [--color COLOR]
                     [--refresh] [-4] [-6] [--destdir DESTDIR]
                     [--downloadonly] [--comment COMMENT] [--bugfix]
                     [--enhancement] [--newpackage] [--security]
                     [--advisory ADVISORY] [--bz BUGZILLA] [--cve CVES]
                     [--sec-severity {Critical,Important,Moderate,Low}]
                     [--forcearch ARCH] [--timer]
yum makecache: error: argument timer: invalid choice: 'fast' (choose from 'timer')

根因

yum makecache fast 是 centos 7 下的命令，并不适用 8

解决方法

执行下面的命令即可

dnf makecache