art@acc.arpa (11/17/87)
Peter, >I have an AT&T 3B2/300 system which was donated to our organization. It >has been running fine for six months until a couple of days ago. When >I power it on, I am getting the diagnostic message "EDT FILL FAILED" >followed by "DIAGNOSTICS FAILED". Unfortunately, I received no >documentation with the system. Could somebody look in their 3B2 manuals >and tell me what "EDT" stands for? Thanks alot! EDT stands for "Equipted Device Table". This is a table that is built at boot time from the autoconfiguration of the hardware. Each I/O slot is probed and any peripheral board in the slot is supposed to return its device ID code. The boot ROM then reads information from the root file system which fills in detail about the devices. If the device is list as an "intelligent" device, a "sysgen" handshake is attempted with the board. I'd say chances are good that you have a board failure. Try to get into the firmware monitor and manually boot /filledt. This should give you and indication of which board it is complaining about. Art Berggreen art@acc.arpa ------