[SunRescue] Moving things onto a new harddrive

[Rebecca Ore]

On Thu, 05 Apr 2001, User Bobkeys BSD Bob the old greybeard BSD freak wrote:

> > I'd like to take things off a problematic disk at target 1 and move
> > this to a new disk at target 0.  I've reinstalled NetBSD on to a 4 gig
> > internal drive in my LX.  How do I get the thing to let me move the
> > /etc /usr and so forth from the old drive to the new drive when I
> > can't mount the old drive anymore at this point (/etc/fstab is coming
> > up read only).
> 
> With the new system up, but the old drive unmounted, fsck each of the
> file system on the old drive..... and pray a little.

I need almost everything on it.  

And I need to be able to have the new installation recognize sd2 and
its directories.


> 
> Then, sequentially mount the old file systems on mount and carefully take
> off (tar, dump, howsumever), only the files that you need.  Be careful
> not to mix old busted files over new files.  The important thing will
> be to fsck it before mounting.

I can't get the system to mount sd2, though it sees the disklabel


> When done, carefully check your new fstab file to make sure it is pointing
> to the correct new file systems.... (e.g., sd0x file systems).
> 
> Old usr should not be just done over the new usr, but tarred off only
> what you need to carry over.  Same for etc files, but I would be very
> careful that you don't mess up any needed scripts by overwriting from
> stuff in the old etc.  Take it slowly and with some forethought.
> 
> Typically you might tar off /usr/local and /usr/pkg and maybe the
> /usr/pkgsrc/distfiles trees.  Tar off an etc, but before you do that
> from the old machine, mv the old etc to etcold or somesuch before
> tarring it off, and then when it untars you will have two etc dirs,
> one the new one (etc) and one the old one (etcold).  Then carefully
> hand patch in the needed old files into the new etc tree.  Typically
> only one or two files are needed, but sometimes as many as a half
> dozen config files might be needed.... rarely more than that.
> 
> If you are reasonably careful, it should work fine.
> 
> Good Luck
> 
> Bob
> 
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-- 
Rebecca Ore
http://www.ogoense.net