Hi! A few days back ...I upgraded using yum update. I did this on 3 machines of which 2 of the machines are mirrors. I have no problems w/the other 2 machines which leads me to believe that the fault lies in 2.6 but rather I think I have a hard drive failure. while the system is trying to boot up. it goes to: grub stage 2....that's the first thing I seem to find outside of taking forever to find the drives. then when it is booting....lots of hdc errors here's an excerpt from /var/log/messages: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: end_request: I/O error, dev hdc, sector 552 Oct 19 20:34:46 rbmain1 kernel: Buffer I/O error on device hdc, logical block 69 Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: ide1: reset: success Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: ide1: reset: success Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: end_request: I/O error, dev hdc, sector 560 Oct 19 20:34:46 rbmain1 kernel: Buffer I/O error on device hdc, logical block 70 Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: ide1: reset: success Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: ide1: reset: success Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } Oct 19 20:34:46 rbmain1 kernel: Oct 19 20:34:46 rbmain1 kernel: ide: failed opcode was: unknown Oct 19 20:34:46 rbmain1 kernel: end_request: I/O error, dev hdc, sector 568 Oct 19 20:34:46 rbmain1 kernel: Buffer I/O error on device hdc, logical block 71 Oct 19 20:34:46 rbmain1 kernel: hdc: drive not ready for command Oct 19 20:34:46 rbmain1 kernel: hdc: status error: status=0x10 { SeekComplete } please be gentle w/me as, yes, I do run raided systems but just started doing it recently and I have no experience troubleshooting it etc but very willing to learn. I know, I probably don't have all the info that y'all probably need but I will surely get it and if someone would like to take this off the msg list, that would sure be ok as well. I swapped data cables w/others but this system still complains the same stuff. I think it's a hard drive but I want y'all to teach me how to really diagnose this. Also, say it's a hard drive. In this system, the raided drives are 1 maxtor 100gb and 1 wd 100gb....Now would it be possible to put a 200 gb in place of the faulty drive? Could that extra space be used...I don't care one way other just wondering is all thx y'all, John Rose -- My wife is always bitching..."I'm so sick of diapers!". I don't know why she's bitching at me...it's her mom and dad not mine!