Re: Simplist way to boot only to a shell

I see a bug report on this at the cpio mailing list:

http://lists.gnu.org/archive/html/bug-cpio/2005-01/msg00003.html


On Sat, 12 Feb 2005 01:44:40 -0400, Donald Teed <[email protected]> wrote:
> Yes, you are right.  I'm able to reproduce the problem
> from cpio with this line:
> 
> /bin/sh -c "(cd $from; find -depth -print | cpio -pdum $to >
> /tmp/base.log 2> /tmp/base.err)"
> 
> The version of cpio causing problems is 2.6.  If I change the
> above command to use the cpio I have buried under
> a KNOPPIX mastering area (which is cpio 2.5),
> then the sym links are copied nicely.
> 
> There is an option -L for cpio that would cause no symlinks
> to be copied but the full files instead.  It seems as
> if that is now assumed by cpio version 2.6 by default.
> 
> I tried adding the -l switch there to force it to use links.
> That worked OK for a the command line above
> run at a shell prompt, when copying bin from /opt area
> to a /tmp/fun location.  When I make the same change
> of adding (letter) -l switch to the cpio command in
> PxesconfigModel.pm it doesn't solve the problem.
> Now I get lots of errors like these:
> 
> cpio: cannot link ./bin/pmonitor to /tmp/pxes/./bin/pmonitor: Invalid
> cross-device link
> cpio: cannot link ./bin/esd to /tmp/pxes/./bin/esd: Invalid cross-device link
> 
> Likewise for --link option
> 
> Perhaps it could be rewritten with tar.  I gave it a try
> but I found the checks of $tmpbase files were making
> a lot of noise.  I'm not clear on what they are doing.
> 
> Here is my tar attempt:
> 
> $r = system("/bin/sh -c \"( (cd $from; tar -cf - * ) | ( cd $to ; tar
> -xf - ) > $tmpbase.log 2> $tmpbase.err)\"");
> 
> I tried with and without the v to make it report information.
> I think the checks following it need a change to work with tar.
> 
> We are getting close to the end of this...
> 
> --Donald Teed
> 
> On Sat, 12 Feb 2005 00:27:35 -0300, Diego Torres Milano <[email protected]> wrote:
> > Probably cpio is affected, or at least its command line.
> > Find the cpio line in PxesconfigModel.pm, add some debug, print it, and
> > reproduce it manually.
>


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