Hi All, About once a week, I get a this strange error on bash command line. Running any command on the command line results in " Input/output error". Only way to get back to normal operation is to hard reboot the machine. I suspect this is something to do with my file system. I am using RH7.3 with ext3 file system on IBM Travelstar drives. I use dd to duplicate the drives. The source and the target drives are identical (same make, model) .I am not sure, but I suspect this error message comes up only on the duplicated drives. (I have never seen this message on my desktop which has a different drive). Any pointers on what is causing this problem would be great Thanks Rahul _______________________________________________ Ext3-users@redhat.com https://listman.redhat.com/mailman/listinfo/ext3-users