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From: hudson@ux1.cso.uiuc.edu (John Hudson)
Newsgroups: comp.unix.ultrix
Subject: Re: using installation tape for disaster recovery
Summary: Docs helpful on this.
Message-ID: <1990Sep17.194939.15652@ux1.cso.uiuc.edu>
Date: 17 Sep 90 19:49:39 GMT
References: <9009171852.AA03774@garnet.berkeley.edu>
Sender: John Hudson
Organization: University of Illinois at Urbana
Lines: 23

In article <9009171852.AA03774@garnet.berkeley.edu> rusty@GARNET.BERKELEY.EDU (rusty wright) writes:
>I'm trying to reinstall my system from dump 0 tapes using the
>installation tape.  (In case you're wondering why, I tried to install
>Ultrix 4.0 on my MicroVAX II/GPX and found out after it was too late
>that 4.0 won't work on an RD53.)  
>My confusion
>is that only mkfs is provided for initializing the disk, not newfs,
>and it's newfs that installs the boot block, so I don't see how I can
>install the boot block.  Can anybody enlighten me?

This is convered the documentation, System Backup and Restore (in my
version it is on page 3-14).

In summary, after making the proper files in /dev and mounting the disk
(see the sequence in the docs), use 'dd' to copy the boot block to the
disk - 'something like'

# dd if=/vaxboot of=/dev/r*0a conv=sync

where * is your RD53 (probably 'ra').

John Hudson
hudson@ux1.cso.uiuc.edu