On Wed, 2006-02-22 at 22:59 +0700, Amrit Angsusingh wrote: > I do shut down the server and found that the cable was set to master > and cable select on both primary and secondary IDE as your comment, so > I change it to master and slave on both IDE but there is still some > error Huh? A cable isn't set to something, a cable is a cable. A drive can be set to master/slave/single/cable-select, but only one of them (it can't be master *and* cable-select). And what you've described is too vague to really know what you've done. Two drives on the same cable have to be jumpered appropriately (one as master, the other as slave, or both as cable-select). Two drives on different cables should both be their own masters, though some models of drive need to be set as a "single" drive, rather than master (i.e. they have no slave), when they'r the only drive on that cable. Single drives (those not sharing their cable), whether or not there's other drives on the system, are treated as single drives. Sometimes they need setting as a single drive, sometimes they're fine set as a master (which can be by the jumpers, or being connected to the master plug on a cable-select system). More than two drives requires the ones sharing a cable to be appropriately set up as master or slave in one way or another, and the other drives as appropriate (master and slave if sharing, but if you only have one other drive it should be set up as a single or master drive). Debugging: Try connecting each drive by itself, and check that you're drives are working properly. Also check both cables individually. Check that your jumpers aren't broken (there should be metal contacts inside the plastic plug). Check the power leads to each drive are working. These days you should have a power supply big enough to handle multiple drives, but it's still possible that you don't. -- Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.