V490 sol8 no disks found

Question

Hi,
I have 2 V490, both with sol8 installed from DVDROM.
both have 2 SCSI disks installed
I run format and get the list of disks
machine1:
Searching for disks...done
AVAILABLE DISK SELECTIONS:
       0. c1t0d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000014c3ba53f8,0
       1. c1t1d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000014c3bad19f,0
machine2:
AVAILABLE DISK SELECTIONS:
       0. c1t0d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000014c3bada8a,0
       1. c1t1d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
          /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w21000014c3bae575,0Doing restore testing
ufsdump to tape
ufsrestore from tape to other machine.
boot sequence stops at /etc/rc2.d/S01MOUNTFSYS
on the mountall command
unable to mount , get prompted for root password for system maintenance
Hostname: fake-name1
metainit: fake-name1: there are no existing databases
The / file system (/dev/rdsk/c1t1d0s0) is being checked.
Can't stat /dev/rdsk/c1t1d0s0
/dev/rdsk/c1t1d0s0: CAN'T CHECK FILE SYSTEM.
/dev/rdsk/c1t1d0s0: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
WARNING - Unable to repair the / filesystem. Run fsck
manually (fsck -F ufs /dev/rdsk/c1t1d0s0). Exit the shell when
done to continue the boot process.at this stage when i run a format I get no disks found.
I have removed the metadevice entries from /etc/system
I have change the devices in /etc/vfstab back to native disks c1t1d0s0 etc
same prob
I have deleted /dev/ and /device and recreated by restoring from backup for the correct machine.
same problem
What have I missed?
How can I do a bare metal restore of a system if it is not back to the original hardware?
I have also deleted /dev and /devices then added a /reconfigure in the boot disk AND boot disk1 -r
but it just hangs the machine just after the copyright message
so I restore the correct /dev and /devices and boot disk1 -r again
get back to the mountall problem, give root password for system maintenance.
give the root password
format searches for a long time ( 30 seconds )
no disks found!
I hope it is something simple I have missed
Thanks in advanced
Peter

Answer 1

With the v480/490 you need to remember that the targets are on c1 NOT c0.
This has caused an issue for many people and their jumpstart installations and meta configs.
There was also a patch that corrected the instance number from c0 to c1.
Prior to the patch, the DVD ROM was NOT detected setting the targets to c0. Applying the patch and doing a reconfig reboot would cause the mount of the root volume to fail, because the /etc/vfstab or md.tab was pointing to c0 and the root disk is now at c1.
This is where the /etc/path_to_inst would come into play.