Linux YUM: if your cache is too old

Posted on: 2015年5月6日 2015年5月6日
Categories: RHEL
Tags: RHEL, YUM

In RHEL, if your YUM cache has not been update over 2 weeks, then you will see the warning below:

[root@adamhuanlinux ~]# yum list | grep thunderbird
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
[root@adamhuanlinux ~]#

[root@adamhuanlinux ~]# yum list | grep thunderbird

Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast

[root@adamhuanlinux ~]#

Solution:
You can solve this error by “yum makecache” or “yum makecache fast”.

Perhaps, you may met this error:

[root@adamhuanlinux ~]# yum makecache fast
Loaded plugins: langpacks, product-id, subscription-manager
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: cdn.redhat.com; Name or service not known"
Trying other mirror.
Metadata Cache Created
[root@adamhuanlinux ~]#

[root@adamhuanlinux ~]# yum makecache fast

Loaded plugins: langpacks, product-id, subscription-manager

Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast

https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: cdn.redhat.com; Name or service not known"

Trying other mirror.

Metadata Cache Created

[root@adamhuanlinux ~]#

Because, DNS could not resolve redhat.com
More details:

[root@adamhuanlinux ~]# nslookup 
> server
Default server: 114.114.114.114
Address: 114.114.114.114#53
> exit
[root@adamhuanlinux ~]#

[root@adamhuanlinux ~]# nslookup

> server

Default server: 114.114.114.114

Address: 114.114.114.114#53

> exit

[root@adamhuanlinux ~]#

You can change your DNS from “114.114.114.114” to “8.8.8.8”:

[root@adamhuanlinux ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp2s0
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=enp2s0
UUID=284ada66-41a2-430d-ba6c-8761f0c6c1f0
DEVICE=enp2s0
ONBOOT=yes
IPADDR=168.0.1.190
NETMASK=255.255.255.0
GATEWAY=168.0.1.37
DNS1=14.114.114.114
DNS2=8.8.8.8
HOSTNAME=adamhuanlinux
[root@adamhuanlinux ~]#
[root@adamhuanlinux ~]# service network restart
Restarting network (via systemctl):                        [  OK  ]
[root@adamhuanlinux ~]#

[root@adamhuanlinux ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp2s0

TYPE=Ethernet

BOOTPROTO=static

DEFROUTE=yes

PEERDNS=yes

PEERROUTES=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_PEERDNS=yes

IPV6_PEERROUTES=yes

IPV6_FAILURE_FATAL=no

NAME=enp2s0

UUID=284ada66-41a2-430d-ba6c-8761f0c6c1f0

DEVICE=enp2s0

ONBOOT=yes

IPADDR=168.0.1.190

NETMASK=255.255.255.0

GATEWAY=168.0.1.37

DNS1=14.114.114.114

DNS2=8.8.8.8

HOSTNAME=adamhuanlinux

[root@adamhuanlinux ~]#

[root@adamhuanlinux ~]# service network restart

Restarting network (via systemctl): [ OK ]

[root@adamhuanlinux ~]#

And “makecache” agian:

[root@adamhuanlinux ~]# yum makecache fast
Loaded plugins: langpacks, product-id, subscription-manager
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
rhel-7-server-rpms                                       | 3.7 kB     00:00     
rhel-7-server-rpms/7Server/x86_64/primary_db               |  12 MB   03:10     
rhel-7-server-rpms/7Server/x86_64/updateinfo               | 529 kB   00:29     
Metadata Cache Created
[root@adamhuanlinux ~]#