SUMMARY: DVD device problem

Managers,

The solution came from "dersmythe", mentioning a DVD hardware problem I
wasn't aware of.
The next URL leads to a description of the problem and the necessary
firmware
upgrade.
http://sunsolve6.sun.com/search/document.do?assetkey=urn:cds:docid:1-21-111649-04-1
Thanks, D!

And thanks Fabio, for the needed OBP commands to freshen up nvramrc
(including my rusty brain):

clear nvramrc
and boot -r

Kuba

Problem:

Hi managers,

I don't use my DVD drive very often, but the last time I did it worked
like
it should on my Ultra60.
But now, when I put in solaris 9 CD1 into the DVD player now, nothing
happens.
The device is not dead: the yellow lamp blinks once or twice, and I can
hear
some spinning around inside.
Then there is silence.
The CD itself is allright since I use it on other machines.

So I disabled volmgt and did a manual mount of the CD

$ mount -F hsfs -o ro /dev/dsk/c0t4d0s0 /cdrom
mount: /dev/dsk/c0t4d0s0 no such device

To be sure of the fysical connection I checked:

$ cfgadm -al
Ap_Id Type Receptacle Occupant
Condition
c0 scsi-bus connected configured
unknown
c0::dsk/c0t0d0 disk connected configured
unknown
c0::dsk/c0t1d0 disk connected configured
unknown
c0::dsk/c0t4d0 CD-ROM connected configured
unknown
c1 scsi-bus connected unconfigured
unknown
c3 scsi-bus connected unconfigured
unknown
c4 scsi-bus connected unconfigured
unknown

So the device is there and there is a connection.
Then I checked for errors of any kind:

$iostat -En
c0t4d0 Soft Errors: 1 Hard Errors: 0 Transport Errors: 0
Vendor: TOSHIBA Product: DVD-ROM SD-M1401 Revision: 1007 Serial No:
Size: 0.00GB <0 bytes>

We 've got ourselves a soft error here...
So I went to take a look on the low level, went to the OK prompt, and
typed:

OK>boot cdrom -s

Boot device: /pci@1f,4000/scsi@3/disk@4,0:f

Can't open boot device

Then I did the next checks:
OK>probe-scsi all
Target 4
Unit 0 Removeable Read Only Device Toshiba DVD-ROM SD-M14011007

OK> printenv
nvramrc devalias cdrom /pci@1f,4... (the dots are litterally there)

OK> devalias cdrom
/pci@1f,4000/scsi@3/disk@4,0:f


Since my OBP skills are very rusty, I find myself out of options what to
do
next, or what to check.
Could a change of alias be the solution here?
If yes, then I should have to know where to change to...

I hope you guru's can help out on this one.
Much obliged.

Kuba




--
Unix gives you just enough rope to hang yourself and then a couple of more
feet, just to be sure.
- Eric Allman

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