cuando le doy yum update a mi cpu me muestra esto podrian decirm cual es el problema

[root@daemon lion]# yum update
Setting up Update Process
Setting up repositories
not using ftp, http[s], or file for repos, skipping -
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not using ftp, http[s], or file for repos, skipping - SpeedTouch
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not using ftp, http[s], or file for repos, skipping - var g_navitem = -1;
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not using ftp, http[s], or file for repos, skipping - Thomson - SpeedTou ch
not using ftp, http[s], or file for repos, skipping - Para ver la interf az Web de SpeedTouch, el explorador debe ser compatible con JavaScript y tener h abilitada dicha funci�n.

Habilite el uso de secuencias de comandos y act ualice el explorador.
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not using ftp, http[s], or file for repos, skipping - en< /a> 
not using ftp, http[s], or file for repos, skipping - es < /span>
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not using ftp, http[s], or file for repos, skipping -
not using ftp, http[s], or file for repos, skipping - writeMenu();
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not using ftp, http[s], or file for repos, skipping -
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not using ftp, http[s], or file for repos, skipping - writeNavBar();
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not using ftp, http[s], or file for repos, skipping - pm_write_messages();
not using ftp, http[s], or file for repos, skipping -

not using ftp, http[s], or file for repos, skipping - Bienvenido...

Enhorabuena por haber adquirido esta puerta de enlace SpeedTouch dom�stica.

not using ftp, http[s], or file for repos, skipping -

Actualmente no est� con ectado a Internet, haga clic en la tarea siguiente para continuar.

not using ftp, http[s], or file for repos, skipping -
not using ftp, http[s], or file for repos, skipping - Configurar mi SpeedTouch
not using ftp, http[s], or file for repos, skipping - < center>http://mirrorlist.centos.org/

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Cannot find a valid baseurl for repo: update
Error: Cannot find a valid baseurl for repo: update