Hello,
Here is what I am trying to do.

We have an old Enterprise 250 which we want to phase out. So plan is to move everything running on the 250 to an unused Sun Fire V280R.

Here is what I decided to do:

1. Fresh Solaris 8 install on Sun 280R (disk0). Configure network and install Netbackup Client.
2. Full restore of 250 (from backups) to Sun 280R (disk1).
3. Change /etc/vfstab, /etc/system (since 250 was mirrored).
4. Also reinstall path_to_inst.

I think I did several other chnages also..I can't remember any more. Picked up on this after a whole week of absence.

Anyway so I can boot from disk0 (on 280R, fresh install of solaris 8), however when I try to boot from disk1 i get the following error messages and its just continue looping: Can someone help me resolve this problem or give me some suggestions.:

OK boot disk1

Rebooting with command: boot disk1
Boot device: /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@1,0 File and args:
SunOS Release 5.8 Version Generic_108528-13 64-bit
Copyright 1983-2001 Sun Microsystems, Inc. All rights reserved.
/kernel/drv/sparcv9/fcp: undefined symbol 'fc_ulp_is_name_present'
/kernel/drv/sparcv9/fcp: undefined symbol 'fc_ulp_pwwn_to_portmap'
/kernel/drv/sparcv9/fcp: undefined symbol 'fc_ulp_is_plogi_initiator'
/kernel/drv/sparcv9/fcp: undefined symbol 'fc_ulp_get_pwwn_by_did'
/kernel/drv/sparcv9/fcp: undefined symbol 'fc_ulp_get_fca_device'
WARNING: mod_load: cannot load module 'fcp'
WARNING: add_spec: No major number for ifp
Cannot assemble drivers for root /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@w21000004cf222ecb,0:a
Cannot mount root on /pci@8,600000/SUNW,qlc@4/fp@0,0/disk@w21000004cf222ecb,0:a fstype ufs

panic[cpu0]/thread=10408000: vfs_mountroot: cannot mount root

0000000010407970 genunix:vfs_mountroot+70 (10435c00, 0, 0, 10410918, 10, 14)
%l0-3: 0000000010435c00 00000000104393a0 00000000fe000000 0000000010435f88
%l4-7: 0000000000000000 00000000104136b0 00000000000b7798 0000000000001798
0000000010407a20 genunix:main+94 (10410160, 2000, 10407ec0, 10408030, fff2, 1004ec8c)
%l0-3: 0000000000000001 0000000000000001 0000000000000015 0000000000000e9a
%l4-7: 0000000010428d78 0000000010462458 00000000000cd4c0 0000000000000540

skipping system dump - no dump device configured
rebooting...
Resetting ...

It's looks like the well know "Veritas on ecapsulated root disk with UFS logging enables" problem.

Boot from disk 0, mount disk 1 on /mnt, do a 'sync' and then unmount the disk. Then try to reboot from disk 1.

Also if it persists you may need to edit the vfstab on disk 1 and remove ufs logging while you have the disk mounted on /mnt.