I have tried to add a 5th SCSI disk on SCO Enterprise System Release 3.0 with no
success. This was on a HP Netserver LM/66 which has Adaptec 2740 Twin Channel
SCSI-adapter.The server boots from the SCSI-disk with ID:0. When mkdev hd is ran the second time (after having rebuild and installed a new kernel) the following happen as fdisk is invoked:
WARNING: Poll command failed on drive ID:4
cannot open /dev/rdsk/4s0
My first guess was that something was wrong with the SCSI-disk. Not so. I have
tried a another disk and a wormunit, changed IDs on both with the same result.
Next I found that the /dev-directory contained no nodes for a fifth disk.I looked into /etc/conf/node.d/hd and found that file had no entries
for a 5th disk. Maybe the allocation of virtual major numbers was faulting?
Dosn't seem so. A closer look on /etc/conf/cf.d/mdevice shows two hd entries:
hd hoc irobCcGk hd 1 1 1 1 -1
hd hoc iobCcGkM hd 80 80 1 256 -1
My belief was that /etc/conf/node.d/hd should have entries for the 5th refered to with minor numbers from 256 and above and that idmknod was to make these devicenodes during installation of the new kernel.
Am I trying to the impossible or is there a missing link?
Alcatel Telecom Norway
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