
		gilsonroberto
		
		(usa CentOS)
		
		Enviado em 22/03/2018 - 18:05h 
		Boa tarde, sou novo na utilização do Linux e utilizo o distribuição Centos 7, estou com uma falha na utilização do yum, apresenta a seguinte mensagem:
[root@servidor1 base]# yum check-update
Plugins carregados: fastestmirror
 One of the configured repositories failed (Desconhecido),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:
     1. Contact the upstream for the repository and get them to fix the problem.
     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).
     3. Run the command with the repository temporarily disabled
            yum --disablerepo=<repoid> ...
     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:
            yum-config-manager --disable <repoid>
        or
            subscription-manager repos --disable=<repoid>
     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:
            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
Cannot find a valid baseurl for repo: base/$releasever/x86_64
************************************************************************************************************************************************************
Já dei uma boa pesquisada e não consegui resolver a falha, seguem algumas informações sobre a rede e config do servidor. Alguem pode me ajudar?
[root@servidor1 base]# cat /etc/resolv.conf && route -n
; generated by /usr/sbin/dhclient-script
search minhaempresa.corp.
nameserver 192.168.100.100
nameserver 8.8.8.8
Tabela de Roteamento IP do Kernel
Destino         Roteador        MáscaraGen.    Opções Métrica Ref   Uso Iface
0.0.0.0         192.168.15.1    0.0.0.0         UG    600    0        0 wlp2s0
169.254.0.0     0.0.0.0         255.255.0.0     U     1002   0        0 enp1s0
192.168.15.0    0.0.0.0         255.255.255.0   U     600    0        0 wlp2s0
192.168.100.0   0.0.0.0         255.255.255.0   U     0      0        0 enp1s0
[root@servidor1 base]#
[root@servidor1 ~]# df -h
Sist. Arq.                   Tam. Usado Disp. Uso% Montado em
/dev/mapper/cl_unknown-root  9,4G  1,5G  7,9G  16% /
devtmpfs                     904M     0  904M   0% /dev
tmpfs                        915M     0  915M   0% /dev/shm
tmpfs                        915M  8,6M  906M   1% /run
tmpfs                        915M     0  915M   0% /sys/fs/cgroup
/dev/sda1                    470M  132M  339M  28% /boot
/dev/mapper/cl_unknown-home  470M   25M  446M   6% /home
/dev/mapper/cl_unknown-tmp   470M   25M  446M   6% /tmp
/dev/mapper/cl_unknown-var   470M   44M  427M  10% /var
tmpfs                        183M     0  183M   0% /run/user/0
[root@servidor1 ~]#
[root@servidor1 ~]# nslookup mirrorlist.centos.org
Server:         192.168.100.100
Address:        192.168.100.100#53
Non-authoritative answer:
Name:   mirrorlist.centos.org
Address: 85.236.43.108
Name:   mirrorlist.centos.org
Address: 216.176.179.218
Name:   mirrorlist.centos.org
Address: 67.219.148.138
Name:   mirrorlist.centos.org
Address: 212.69.166.138
[root@servidor1 ~]# cat /etc/yum.repos.d/CentOS-Base.repo
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
[root@servidor1 ~]#