Estoy tratando de instalar php-mysql pero tengo instalaciones k no terminaron, intento limpiar con el comando yum install clean y me sale el siguiente error. Gracias:
 
[root@192 ~]# yum install clean
Loaded plugins: fastestmirror
Existing lock /var/run/yum.pid: another copy is running as pid 3896.
Another app is currently holding the yum lock; waiting for it to exit...
Another app is currently holding the yum lock; waiting for it to exit...
Loading mirror speeds from cached hostfile
 * extras: mirror.ash.fastserv.com
updates: mirrors.netdna.com
base: centos.mirror.nac.net
contrib: centos.secsup.org
 * centosplus: mirrors.versaweb.com
addons: centos.corenetworks.net
http://linuxdownload.adobe.com/linux/i386/repodata/repomd.xml: [Errno 12] Timeout: <urlopen error timed out>
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: adobe-linux-i386. Please verify its path and try again

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 Alberto Torres Paredes                    :::::::::

      Ingenieria de Sistemas                                  :::::::::

Universidad Privada Cesar Vallejo                      :::::::::

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