🚀 go-pugleaf

I "cp -a * /mnt" with the new usr mounted on /mnt

Then changed fstab to include new mount to mount to /usr
rebooted, all worked perfectly. So I commented out the line mounting the new
/usr and rebooted
deleted to old /usr
manually mounted the new /usr into /usr, then I uncommented fstab and
rebooted
All worked fine EXCEPT when I had no usr directory, but manually mounting
the new one was no prob.


Thorfinn <thorfinn@netizen.com.au> wrote in message
news:slrn7v8jk8.cj.thorfinn@netizen.com.au...
> In aus.computers.linux, on 1 Oct 1999 05:21:57 GMT
> loki <eloki@zip.com.au-nospam> wrote:
> > Steve Oxley <viking@valhalla.cc.monash.edu.au> wrote unto us:
> > >In article <37F433E9.D6C97D1@pantek.com>, Richard Zack wrote:
> > >>mv /newusr /usr
>
> Eek.  No.  Just use the tar trick below, then change your /etc/fstab
> to mount the new disk on /usr instead of the old partition... then
> reboot (and make *sure* you've got some sort of fully bootable rescue
> disk so you can mount the root filesystem and change /etc/fstab *back*
> if you need to), and check it worked.
>
> > >Or better still, mount the new disk under /mnt, and then:
> > >cd /usr
> > >tar cf - . | (cd /mnt;tar xvf - )
>
> Yeps.
>
> >   This is less line and doesn't use disk space for a temp file, but
isn't it
> > possibly going to use a heck of a lot of RAM?
>
> Nope.  It's a pipe.  Unix pipes DON'T store everything from the input
> process then push the whole thing through to the next process.  That's
> msdog pipes (which use temporary disk files, blech!).
>
> Both processes run (look ma!  multitasking! :)), output from the first
> one gets piped through to the second one, while they're both running.
> Usually the first process will use blocking output calls, which means
> that if the second process isn't pulling stuff out of the pipe fast
> enough, the first process will wind up blocking on its output...
>
> It's all very sexy stuff. :)
>
> ook,
>
>   Thorfinn
>
> --
> <a href = "http://netizen.com.au/~thorfinn/">thorfinn@netizen.com.au</a>
> I cannot believe that God plays dice with the cosmos.
>     -- Albert Einstein, on the randomness of quantum mechanics