RE: chroot diff. errors?

[Mehdi _1]

Bob:
Thanks very much for taking the time and explaining in full detail!

I appreciate it....(tho didnt expect it)!
:-)

Best Regards;

Mehdi B.



> Date: Mon, 17 Aug 2009 16:54:59 -0600
> From: address@hidden
> To: address@hidden
> CC: address@hidden
> Subject: Re: chroot diff. errors?
> 
> Mehdi _1 wrote:
> > Sometimes the command chroot does not work, for instance ,earlier
> > the same command (below) worked in the same directory!  But now I
> > get these:
> > 
> > address@hidden:disk>chroot .
> > /bin/bash: error while loading shared libraries: libncurses.so.5: cannot 
> > open shared object file: No such file or directory
> > 
> > address@hidden:disk>pwd
> > /media/disk
> 
> This means that loading libncurses.so.5 needed by bash in the chroot
> failed.  In the chroot probably means /media/disk/lib/libncurses.so.5
> inside the chroot but also means any dependent libraries too.  Do all
> of those libraries exist in the chroot?
> 
> > The /media/disk is a hard drive not on obtical but I changed
> > directories anyway but then I get this other error:
> > 
> > address@hidden:xen>chroot /mnt/xen/
> > chroot: cannot run command `/bin/bash': No such file or directory
> 
> That means that /mnt/xen/bin/bash could not be invoked in the chroot.
> Does it exist there?
> 
> > Sorry for the long email, I am not looking for answer or reply, it
> > is probably something I am running/doing?!  Though as I said the
> > chroot worked earlier today on the same machine!?
> 
> The most typical problem people have with creating chroots is not
> installing all of the necessary executables and dependent libraries
> inside the chroot.  The documentation for chroot says:
> 
>      If you want to use a dynamically linked executable, say `bash', then
>   first run `ldd bash' to see what shared objects it needs.  Then, in
>   addition to copying the actual binary, also copy the listed files to
>   the required positions under your intended new root directory.
>   Finally, if the executable requires any other files (e.g., data, state,
>   device files), copy them into place, too.
> 
> Bob

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