Hi All My system is CentOS release 4.4 (Final) and for the last few days my system si getting rebooted ... i really cant find out any reason why ... but on the messages found in the var/log/ ...here is what i got . Aug 10 04:31:34 spam2 kernel: FAILED Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:31:34 spam2 kernel: FAILED Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:31:34 spam2 kernel: FAILED Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:31:34 spam2 kernel: FAILED Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:31:34 spam2 kernel: FAILED Aug 10 04:31:34 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:31:34 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:31:34 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:32:29 spam2 kernel: FAILED Aug 10 04:32:29 spam2 kernel: status = 1, message = 00, host = 0, driver = 08 Aug 10 04:32:29 spam2 kernel: Current sd: sense key Illegal Request Aug 10 04:32:29 spam2 kernel: Additional sense: Invalid command operation code Aug 10 04:32:29 spam2 kernel: FAILED Can some one please help me debug this issue . or assist me on what i should do further . Thanks Agnello -- Regards Agnello D'souza -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20090810/9a13ce07/attachment-0004.html>