9531alix%ucsbuxa@hub.ucsb.edu (David Alix) (12/20/90)
I have a Sun 3/50 running SunOs 4.0.3. It has the standard Micropolis
SCSI disk that came with it from Sun, and a CDC Wren V 94181-702
daisy-chained from the Micropolis. The "Format" command gives the
following information about the disks:
0. sd0 at si0 slave 0
sd0: <Micropolis 1325 cyl 1022 alt 2 hd 8 sec 17>
1. sd1 at si0 slave 8
sd1: <CDC Wren V 94181-702 cyl 1110 alt 2 hd 15 sec 70>
I have been trying to set up an alternate, bootable root file system on
the second disk. I copied all the files from sd0a onto sd1a using
restore, then used installboot to update a boot block on sd1a.
I then expected to be able to boot from sd1a with the command:
>b sd(0,8,0)vmunix
but instead get the error message:
SCSI: select failed
Device not found
Thinking the device might be one instead of eight, I tried booting with:
>b sd(0,1,0)vmunix
I then got the error message
sd: error 4 0 0 0
.
.
.
(repeated many times)
Waiting for disk to spin up
When I boot from sd0a, I have no trouble accessing any space on sd1a. Is
there some step I've missed in setting up the alternative root directory?
Is there a problem with trying to boot from a daisy-chained SCSI disk?
Thanks for any help you can offer.
David Alix
Computer Center, Univ. of Calif., Santa Barbara
Postmaster, ucsbuxa
9531alix@ucsbuxa.bitnet or 9531alix@ucsbuxa.ucsb.edu