On Thu, 12 Jun 2003 at 2:23pm, Tom Brown wrote

> Attached scsi tape st0 at scsi0, channel 0, id 4, lun 0
> Attached scsi tape st1 at scsi0, channel 0, id 4, lun 1
> Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
> Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0

Each of those devices *also* has a generic device, in order.  
/dev/sg0-/dev/sg3.

> This is a single drive unit so one ID is for the robot and the other is for
> the tape device.
> 
> amcheck-server: could not get changer info: badly formed result from
> changer: "cannot open SCSI device '/dev/sg4' - No such device or address"

There *is* no sg4.  What in your config files points at sg4?

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University