[SunHELP] boot es450 disk in a es250

[Harvey, Tom]

This might sound a bit crazy but we are trying to boot a SUN es250 using a
removable drive from a SUN es450. (this is all under Solaris 8)

The platforms have similiarshardware installed such as processor and video
card etc.

So.. 
1) I boot the es250 off an internal drive and mount the es450 disk in an
external drive chassis that we have.  I run
devfsadm -v -r /mnt.
Before running devfsadm the es450 disk was a perfectly usable disk that I
can boot the es450 off of.

2) I modify the vfstab, hostname, and nodename apropriately.

3) shutdown and try to boot  the es250 from the es450 disk:
ok boot /pci at 1f,4000/scsi at 3,1/disk at 2,0  
Notes: The disk is in an external enclosure as target 2.  (probe-scsi-all
sees the disk fine etc.)

Error messages:
/dev/dsk/c1t2d0s1 - No such device or address
Can't open /dev/rdsk/c1t2d0s0

Then it allows me to enter root for system maintenance.  The disk is mounted
readonly (i assume) since i can browse around but df shows nothing.

I can boot the es250 off the internal drive and mount the offending disk
under /mnt and browse all the dev/dsk and /dev/rdsk and /devices and it
looks like its all there. c1t2d0s0 and s1 are there !!

Any suggestions would be appreciated!!

-- Tom

Thomas J. Harvey
Sr. Software Eng.
LMIS - Hurlburt Field
tom.j.harvey at lmco.com
850-581-0044