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Applies to:

Goal

Solution

The alias "diskbrd" is defined as /sbus@3,0/SUNW,fas@3,8800000/sd@a,0
for disk boards installed in card cage slot 3. This does not work if
the disk board is installed in card cage slot 5 on your server.
To define a different boot device:

1) Run the probe-scsi command, to view drives on the disk board.
2) Use the show-disks command to view your SCSI controllers.
3) Use the nvalias command to create a device alias.
4) Use setenv to set the boot-device to your device alias.

At the OBP prompt, run probe-scsi-all to view all SCSI devices:

 {0} ok probe-scsi-all
/sbus@7,0/SUNW,fas@3,8800000
Target c
Unit 0   Disk     SEAGATE ST32550W SUN2.1G041800000000
Copyright (c) 1996 Seagate
All rights reserved ASA2
Target d
Unit 0   Disk     SEAGATE ST32550W SUN2.1G041800000000
Copyright (c) 1996 Seagate
All rights reserved ASA2

 /sbus@3,0/SUNW,fas@3,8800000
Target 5
Unit 0   Removable Tape     EXABYTE EXB-8505SMBANSH20793            

 Target 6
Unit 0   Removable Read Only device     TOSHIBA
XM-4101TASUNSLCD342412/08/94

The boot drive in this example will be the Seagate ST32550W 2.1G drive at
Target c.

Run the show-disks command to view the SCSI disk selection list:

{0} ok show-disks
a) /sbus@7,0/SUNW,fas@3,8800000/sd
b) /sbus@3,0/SUNW,fas@3,8800000/sd
q) NO SELECTION
Enter Selection, q to quit: a
/sbus@7,0/SUNW,fas@3,8800000/sd has been selected.
Type ^Y ( Control-Y ) to insert it in the command line.
e.g. ok nvalias mydev ^Y
for creating devalias mydev for
/sbus@7,0/SUNW,fas@3,8800000/sd
 {0} ok nvalias mydisk /sbus@7,0/SUNW,fas@3,8800000/sd@c,0
                ^      ^
                |       (pressing CNTRL-Y here will insert this line
                |        up to /sd.  You must add "@target,0"  where
                |       "target" is the SCSI target address. )
    	      	|
                This is the alias name referenced for the boot-device.

This example sets the alias name "mydisk" to SCSI target 12 on the
1st disk in the drive board installed in card cage slot 5.
 Note:   "sd@c,0" references the SCSI disk at Target 12
	  ( The hexadecimal "c" is the same as decimal "12".)
In this example, Solaris OS will use the symbolic device name
c2t12d0, where "t12" is the target address on controller 2.

To set the boot device, the boot-device NVRAM parameter must be changed:
ok setenv boot-device mydisk
ok reset
The machine will reset itself, and should automatically boot from the
device alias 'mydisk'.
Run the devalias command to list your device aliases:
{0} ok devalias
mydisk                   /sbus@7,0/SUNW,fas@3,8800000/sd@c,0
screen                   /sbus@7,0/cgsix@0,0
disk                     /sbus@3,0/SUNW,fas@3,8800000/sd@0,0
diskbrd                  /sbus@3,0/SUNW,fas@3,8800000/sd@a,0
diskisp                  /sbus@3,0/QLGC,isp@0,10000/sd@0,0
net                      /sbus@3,0/SUNW,hme@3,8c00000
cdrom                    /sbus@3,0/SUNW,fas@3,8800000/sd@6,0:f
tape                     /sbus@3,0/SUNW,fas@3,8800000/st@4,0
scsi                     /sbus@3,0/SUNW,fas@3,8800000
disk0                    /sbus@3,0/SUNW,fas@3,8800000/sd@0,0
disk1                    /sbus@3,0/SUNW,fas@3,8800000/sd@1,0
disk2                    /sbus@3,0/SUNW,fas@3,8800000/sd@2,0
disk3                    /sbus@3,0/SUNW,fas@3,8800000/sd@3,0
disk4                    /sbus@3,0/SUNW,fas@3,8800000/sd@4,0
disk5                    /sbus@3,0/SUNW,fas@3,8800000/sd@5,0
tape0                    /sbus@3,0/SUNW,fas@3,8800000/st@4,0
tape1                    /sbus@3,0/SUNW,fas@3,8800000/st@5,0
ttya                     /central/fhc/zs@0,902000:a
ttyb                     /central/fhc/zs@0,902000:b
keyboard                 /central/fhc/zs@0,904000
keyboard!                /central/fhc/zs@0,904000:forcemode
name                     aliases
Note:
After you boot Solaris OS, the two disk drives are recognized as c2t12d0 and
c2t13d0 where "t12" and "t13" are scsi target addresses on controller 2.
Under format, c2t12d0 will be mapped to sbus@7,0/SUNW,fas@3,8800000/sd@c,0.


Product
Sun Enterprise 6000 Server
Sun Enterprise 5000 Server
Sun Enterprise 4000 Server
Sun Enterprise 3000 Server
Sun Enterprise 6500 Server
Sun Enterprise 5500 Server
Sun Enterprise 4500 Server
Sun Enterprise 3500 Server

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