topic Transfer HD to another hardware in Operating System - Tru64 Unix

Transfer HD to another hardware

pietro60 — Wed, 16 Feb 2011 20:28:44 GMT

I have make an image copy of the alpha station 433AU and installed it on anather alphaserver 400 4/166 and I start to boot with the command "b dka0 -fl 0 -fi genvmunix, after I'm not able to mount the pation a and g.The attually disk is rz0c instead the original was rz16c.
How can I do to fix the trouble?

Re: Transfer HD to another hardware

Steven Schweda — Thu, 17 Feb 2011 05:28:26 GMT

> [...] the alpha station 433AU [...]

Not a very detailed description of the OS.

sizer -v

"I'm not able" is not a useful problem
description. It does not say what you did.
It does not say what happened when you did
it.

In many UNIX(-like) operating systems, a file
like "/etc/fstab" contains disk names which
will be incorrect if the disk hardware is
changed, and that can cause normal "mount"
operations to fail. One common solution
involves booting from an OS installation
medium (like a CD-ROM), and escaping to a
normal (or maintenance) shell, then mounting
the problem file system manually, and editing
"/etc/fstab" (or whatever) so that it will be
correct in the new environment.

Re: Transfer HD to another hardware

John Manger — Thu, 17 Feb 2011 08:09:09 GMT

Pietro,

As Steven has indicated, before you can mount the filesystems from the new disk's partitions, you will need to edit /etc/fstab to point to the correct partitions.

Perhaps your /etc/fstab looks a bit like this :

/dev/rz16a / ufs rw 1 1
/proc /proc procfs rw 0 0
/dev/rz16g /usr ufs rw 1 2
/dev/rz16b swap1 ufs sw 0 2

Boot the system to single user
>>> boot dka0 -flags 0 -file /genvmunix
...
INIT: SINGLE USER MODE
#

Make the root filesystem writable :
# mount -u /

Edit fstab and change ALL the references 'rz16' to 'rz0'. Ie. change root, usr and swap.
# ed /etc/fstab
1,$s/rz16/rz0
w
q

Then the mounts from rz0 should work:
# mount -a
#

And thats it.

John M

Re: Transfer HD to another hardware

pietro60 — Fri, 18 Feb 2011 18:36:08 GMT

I have tried to edit the file FSTAB but I was not able to save it (w), therefore I boot with another disk, then mount this disk and edit the FSTAB by VI command, then try to mount the partion /usr(g), but there was a dirty file system and I have used the command FSCK /DEV/RZ0G, then was possible to mount the /usr and lunch the DOCONFIG, at this point copy the new VMUNIX to partion ROOT and reboot and everything worked well,
fantastic.
Thank you very much everybody.