Thanks so much to all for the extremely fast responses - these all ask much
the same
question about the /etc/fdmns links. I believe these are as they should be.
Here's what I did in a little more detail (it's a 4.0E system)
* normal system disk is rz8 (has root, swap, usr and var as rz8a,rz8b rz8g
and rz8h)
* I put the spare disk in spare slot (machine recognised it as rz11)
* disklabel -r rz8 > /tmp/rz8_label
* disklabel -R -r -t advfs rz11 /tmp/rz8_label BB00911C
* I made the new spare domains on the live rz8 disk (i.e. for
rz11a, rz11g and rz11h) and mounted them up on spare points
* I then did the vrestores to rz11a, rz11g and rz11h. This copied the
original
(i.e. rz8-based) fdmns directory correctly to the spare disk /etc
directory
* I physically swapped out the original rz8 and put the spare disk in and
tried to boot.
It obviously gets the root partition ok, as it boots the
kernel, and only fails when it tries to mount /usr/ and /var
I've double checked the etc/fdmns area in the *spare* disk - they are
exactly the
same as the original i.e.:
root_domain rz8a -> /dev/rz8a
usr_domain rz8g -> /dev/rz8g
var_domain rz8h -> /dev/rz8h
(the original fdmns of course also now has the extra links for rz11, so I
can mount
the spare in the spare slot and view its contents - which look fine)
Both copies of the /etc/fstab are the same.
Some people mentioned checking out the SCSI Id (I haven't had chance to
get the system time to try this yet) - but surely this isn't used at this
level of the
proceedings?
I'm still foxed, but feel like the fdmns issue must be the key area since
I've
done all this successfully before with a UFS-based system disk.
Any more ideas welcome!!
Thanks
Lindsay
> -----Original Message-----
> From: "Wakeman; Lindsay" <Lindsay.Wakeman_at_bl.uk> at Internet
> Sent: Wednesday, September 13, 2000 5:15 PM
> To: "'tru64-unix-managers_at_ornl.gov'"
> <tru64-unix-managers_at_ornl.gov> at
> Internet
> Subject: Cannot boot from spare system disk
>
>
>
> Hi Guys
>
> I have created a spare system disk by copying the live system disk
> disklabel to the
> new disk (same disk type by the way), making the appropriate
> spare advfs
> domains, filesets and mountpoints, mounting them and
> vrestoring each from my
> last level 0 vdump tape.
>
> All seems fine, I can mount them all on the temporary
> mountpoints and see
> all the
> contents as they should be.
>
> However, if I then swap the spare disk into the system disk
> slot and try
> and boot,
> it boots vmunix OK, mounts the root partition, but then
> fails to mount the
> /usr and
> /var partitions with a message along the lines of' no such domain,
> filesystem or fileset'
> -Sorry I forgot to take a pen to the machine room to write
> it down verbatim
> :-|
> It then hangs.
>
>
> By my reckoning, the copied /etc/fstab should work fine as
> the partitioning
> and disk type are identical. Can anyone shed any light on
> what may be wrong
> please? I'm sure it must be something simple/obvious but
> can't spot it..
>
> TIA
>
> Lindsay
>
>
>
> Lindsay Wakeman
> UNIX Systems Manager, Systems Delivery London
> The British Library
> lindsay.wakeman_at_bl.uk
> +44 207 412 7090
>
>
Received on Thu Sep 14 2000 - 10:14:00 NZST