sls@allegra.UUCP (~p) (02/09/84)
We are running Unix 4.1 on 2 Vax-11/780s We are currently booting off of RP06s. We would like to get rid of the RP06s and boot off of Eagles. The field engineer who installed the Eagles said that you can't boot off them, but I find this hard to believe. Has anyone else done this? If so, could you please send me information on doing this? Sue Shaw ATT Bell Laboratories allegra!sls
thomas@utah-gr.UUCP (Spencer W. Thomas) (02/10/84)
There was a bug in pre-4.2 bootstraps for the Fuji. (Other problem was you had to throw out other drives to fit the fuji into 512 bytes.) The "driver" in the bootstrap program spins on drive ready to decide when a transfer has completed. However, the fuji is so fast that this comes up well before the data has actually made it into memory. You need to change that code to spin on controller busy instead (and invert the sense of the test). We had the weird situation where it would boot without the FPA, but not with! Not having the FPA slowed the CPU down enough that it was (usually) ok. =Spencer