On Wed, Dec 23, 2009 at 12:31:53PM +0000, hadi motamedi wrote: > > Please find below : > [root at mss-1 tmp]# rpm -q centos-release > centos-release-5-2.el5.centos And you conveniently left out the kernel revision that would be returned by the second part of the command I gave you, namely "uname -a". It sounds very much like a broken server, either a crippled OpenVZ or similar VPS or a server broken by someone that didn't know what they were doing and went to some trouble to remove the yum subsystem. Akemi pointed you to http://wiki.centos.org/TipsAndTricks/BrokenVserver and it is worth your time to read it and see if you can unbreak that box. John -- All I ask is this: Do something. Try something. Speaking out, showing up, writing a letter, a check, a strongly worded e-mail. Pick a cause -- there are few unworthy ones. And nudge yourself past the brink of tacit support to action. Once a month, once a year, or just once. -- Joss Whedon (1964-), writer and film director -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20091223/21d704e6/attachment-0005.sig>