Sun Fire[TM] 15K server: Duplicate Open Boot Prom (OBP) devaliases may prevent the system from booting

Asset ID:	1-72-1011843.1
Update Date:	2009-02-08
Keywords:

Solution Type Problem Resolution Sure

Solution 1011843.1 : Sun Fire[TM] 15K server: Duplicate Open Boot Prom (OBP) devaliases may prevent the system from booting

Related Items


Sun Fire 15K Server

Related Categories


GCS>Sun Microsystems>Servers>High-End Servers

PreviouslyPublishedAs
216224

Symptoms
Check the sysconfig/prtconf-vp.out file for duplicate devalias entries. If any duplicates are found, determine if the duplicate entries reference different devices. If any duplicates are found to reference different devices, the system may fail to boot. Devalias entries in prtconf-vp.out are displayed in a system Node with a name of "aliases" (see the node example below).

Example devalias Node entry from prtconf-vp.out. Note that the duplicate alias "disk" would fail this check. The duplicate alias disk5 would not fail, because both entries reference the same device. Also, note the node name field at the bottom of the Node entry.
Node 0xf081ffb0
xdisk:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@0,0'
xnet:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,hme@0,1'
diskc:  '/ssm@0,0/pci@1c,700000/pci@1/SUNW,isptwo@4/sd@0,0'
netc:  '/ssm@0,0/pci@1c,700000/pci@1/SUNW,hme'
cdrom:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@6,0:f'
disk:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@0,0'
disk:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@1,0'
disk0:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@0,0'
disk1:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@1,0'
disk2:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@2,0'
disk3:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@3,0'
disk4:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@4,0'
disk5:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@5,0'
def-cn:  '/sgcn'
diskifp:  '/ssm@0,0/pci@19,700000/SUNW,ifp@1/ssd@0,0'
diskglm:  '/ssm@0,0/pci@18,700000/scsi@2/disk@0,0'
scsi:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo'
net:  '/ssm@0,0/pci@1c,700000/pci@1/SUNW,hme@0,1'
disk5:  '/ssm@0,0/pci@18,700000/pci@1/SUNW,isptwo@4/sd@5,0'
name:  'aliases'

Resolution
Delete the duplicate devalias entries from the OBP.

Note, this must be done from the OBP OK> prompt, and will require system downtime to complete. Use the command "nvunalias " to remove each of the duplicate entries. Ensure that the nvramrc is not set to recreate one of the duplicate aliases unintentionally. Note that a "reset" may be required
on the system before the duplicate aliases will not appear in the output of a "devalias" command. Then, recreate the appropriate aliases with the "nvalias" command.

Product
Sun Fire 15K Server

devalias, node
Previously Published As
48126

Change History
Date: 2008-01-08
User Name: 95826
Action: Update Canceled
Comment: *** Restored Published Content *** canceling update to allow migration to IBIS
Version: 0
Date: 2008-01-08
User Name: 95826
Action: Reassign
Comment: reassigning document to release it in order to allow migration to IBIS
Version: 0
Date: 2005-02-28
User Name: 55898
Action: Rejected

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