[SunHELP] boot es450 disk in a es250

[Harvey, Tom]

That was it.

My thanks to Ashraf & Alan.

I could not mount the disk r/w from the maintenance mode it kept complaining
about "no such device" even though I was browsing the disk read only. :)

I copied the "/etc/path_to_inst" file from the working es250 internal disk
to the es450 disk I was trying to boot.
I rebooted it specifying the "-r" and it came up.  
Now I just need to hunt down why the xserver wouldnt start but otherwise the
system booted up fine in multiuser mode on the network etc..

thanks a bunch,
Tom

> -----Original Message-----
> From:	Alan Rubin [SMTP:rubin at frell.org]
> Sent:	Wednesday, August 15, 2001 6:43 PM
> To:	\"\'sunhelp at sunhelp.org\'\"
> Subject:	RE: [SunHELP] boot es450 disk in a es250
> 
> If that doesn't do it, then you might need a new path_to_inst file.  One
> is generated if you can boot the 250 into single user from a cdrom.  Mount
> the 450's drive, backup the old path_to_inst file, and then copy from
> /tmp/root/etc/path_to_inst.
> 
> I had a similar problem booting when I moved a boot drive from an Ultra 1
> to an Ultra 2 earlier this week.
> 
> Alan
> 
> -- Original Message --
> From: "Girguis, Ashraf" <Ashraf.Girguis at constellation.com>
> To: "'sunhelp at sunhelp.org'" <sunhelp at sunhelp.org>
> Send: 06:22 PM
> Subject: RE: [SunHELP] boot es450 disk in a es250
> 
> 
> Boot the machine again from the es450 disk, 
> enter the maintenance mode,  
> remount the root file system in read/write mode "mount -o remount
> /"
> drvconfig
> disks
> init 6
> 
> That should take care of your problem.
> 
> Thanks
> Ashraf
> 
> -----Original Message-----
> From: Harvey, Tom [mailto:tom.j.harvey at lmco.com]
> Sent: Wednesday, August 15, 2001 7:16 PM
> To: sunhelp at sunhelp.org
> Subject: [SunHELP] boot es450 disk in a es250
> 
> 
> 
> 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
> 
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