Sorry this summary is a bit late.
For some reason our email system did not send it off site the first time.
========================================================
I received may reply to my question as to how to
make a disk bootable, including a link to the
archives.
http://www.ornl.gov/its/archives/mailing-lists/tru64-unix-managers/1998/09/msg00539.html
The problem was that my backup disk lacked a
correct boot block.
The following commands were
suggested to write a boot block to my backup disk
which already contained the / and /usr file systems.
disklabel -r rz8 > rz8.label
disklabel -Rr -t advfs rz8 rz8.label rzxx
It should be possible to do this with one command
disklabel -wr -t advfs rz8 rzxx
However some versions of the OS (DU 4.0D) would write UFS bootstrap code.
But if the label information is read from file it works
disklabel -wr -t advfs rz8 rzxx
disklabel -r rz8 > rz8.label
disklabel -Rr -t advfs rz8 rz8.label rzxx
Because of worries about losing the contents of the backup
disk when the boot block was written I created a new boot
disk and copied the data to it.
The new disk supplied by COMPAQ is rz40 the backup disk
is rz8
disklabel -r rz8 > rz8.label
disklabel -Rr -t advfs rz40 rz8.label rzxx
I then used vdump and vrestore to copy the root and usr file
systems from the backup disk to the new disk.
The result was a working system disk and the system and
my users are now happy.
Now that I had a working system disk I decided to test
where it was possible to write to boot block to a disk without
Loosing the data already stored on the disk.
The following commands successfully wrote the boot block
on my backup disk with out damaging the data.
disklabel -r rz8 > rz8.label
disklabel -Rr -t advfs rz8 rz8.label rzxx
Many thanks to everyone who replied to my question
Sean O'Connell
John P Speno
David J. DeWolfe
Russ_Fish
Philip.Ordinario
"Spitzberg, Bobbi (CIT)"
Tom Brand
Rene-Pierre Bonvin
Joe Ryals
Carlos Martinez
"Davis, Alan"
alan_at_nabeth.cxo.dec.com
Nikola Milutinovic
+ others
Original question
=================
>
> Does anyone what the magic is to make an adfvs disk
> bootable?
>
> The system disk in one of our DS20's died. We have a disk
> with copies of the original root and /usr partitions (or file
> sets) but the system does not want to boot from it. :-(
> The system is complaining about the lack of osf_boot
Richard Westlake
Crystallography Dept. , Birkbeck College, Malet Street, London WC1E 7HX
Tel: 020-7631-6859
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Truth endures but spelling changes -- Anon.
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Received on Wed Jul 26 2000 - 08:37:36 NZST