Sun Fire[TM] Servers/Solaris[TM] Operating System: CD-ROM Boot Attempt Fails With Error: "Cannot Assemble Drivers for Root"

Asset ID:	1-72-1007666.1
Update Date:	2010-08-27
Keywords:

Solution Type Problem Resolution Sure

Solution 1007666.1 : Sun Fire[TM] Servers/Solaris[TM] Operating System: CD-ROM Boot Attempt Fails With Error: "Cannot Assemble Drivers for Root"

Related Items


Sun Fire E6900 Server
 Sun Fire 3800 Server
 Sun Fire 6800 Server
 Sun Fire E4900 Server
 Sun Fire 4800 Server
 Sun Fire 4810 Server

Related Categories


GCS>Sun Microsystems>Servers>Midrange Servers

PreviouslyPublishedAs
210616

Symptoms
When attempting to boot from a CD-ROM to install the Solaris[TM] Operating System (Solaris OS) on a new system, that system encounters an error and fails to boot.
For example:

 {8} ok boot cdrom2
SunOS Release 5.9 Version Generic_112233-12 64-bit
Copyright 1983-2003 Sun Microsystems, Inc.  All rights reserved.
Use is subject to license terms.
Cannot assemble drivers for root
/ssm@0,0/pci@1c,700000/pci@3/scsi@5/sd@6,0:b
Cannot mount root on /ssm@0,0/pci@1c,700000/pci@3/scsi@5/sd@6,0:b fstype
ufs
panic[cpu8]/thread=140a000: vfs_mountroot: cannot mount root

Resolution
This problem occurs because the system has the CD-ROM attached to an Ultra3 SCSI Host bus adapter (option X6758), and the Solaris OS does not have the necessary drivers for that SCSI adapter incorporated onto the bootable install CD-ROM.

These drivers are not bundled into any Solaris OS release below Solaris 10.
You can find details about the packages that need to be installed for this SCSI card in Technical Instruction <Document: 1018123.1> .

You can avoid this problem with one of two possible solutions:

Boot off of, and install to, an alternate SCSI card that has the requisite drivers bundled into the Solaris OS media that you use to install.

Install using a Jumpstart[TM] server that uses a Solaris image that has had the requisite drivers added to it.

Refer to the "StorEdge[TM] PCI Dual Ultra3 SCSI Host Adapter Installation Guide, 816-2156."
This document is included with the SCSI card when it is sold.
If the document is unavailable, you can find a link to the latest version from the Sun System Handbook at
https://support.oracle.com/handbook_private/Devices/SCSI/SCSI_Dual_Ultra3_PCI.html

Product
Sun Fire E4900 Server
Sun Fire E6900 Server
Sun Fire 6800 Server
Sun Fire 4810 Server
Sun Fire 4800 Server
Sun Fire 3800 Server

Internal Comments
Audited/updated 11/24/09 - roberto.morandi@Sun.COM, Mid-Range Server Content Team

This document is a Normalized Resolution Path and is managed by the MidRange Server Group's Domain Engineer.

Please send any feedback on this resolution path to Feedback_MSG_Domain@sun.com. Include the document ID in the subject line.
Do not update this document without first contacting the feedback email alias.

PCI Dual Ultra3 SCSI, Boot, Normalized

Previously Published As
76042

Change History
Date: 2007-03-12
User Name: 7058
Action: Approved
Comment: Keywords and disclaimer only.
OK to republish.

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