Re: [CI] Re: [SSI] /usr/sbin/chroot and initrd

[Aneesh K. K.V <ane...@di...>]

On Wed, 2002-12-04 at 05:47, Brian J. Watson wrote:
> >  If we have a separate /usr partition the use of /usr/sbin/chroot in
> > linuxrc will fail. How do we fix this ?
> 
> Back in the days of NonStop Clusters for UnixWare, /usr had to be part
> of the root file system. I can't remember the precise reason why, but I
> doubt we need to have the same restriction on Linux.
> 
> To solve the chroot problem, we could just copy it into /bin of the
> initrd and run it out of there.
> 

But after pivot_root my root will change and /bin in initrd is now
/initrd/bin/ 



> SSI-specific commands that might be run before /usr is mounted, such as
> cmount, should not be installed under /usr. They should be installed in
> /bin or /sbin. In the case of cmount, it should be installed in /bin,
> just like the mount command.
> 

Here is the confusion. I am yet figure out a method by which  i can
install some binaries in /usr/bin and some in /bin. What i found is i 
can have only two type of binaries  sbin_PROGRAMS and bin_PROGRAMS. now
/usr/sbin is nothing but sbin with prefix /usr. and prefix is something
that is global to the cluster-tools. Any how i will experiment  and try
to figure out some way. ( I don't want to do it in install-local )

Till we solve the above can we say that all the cluster-tools binaries
will go to either /bin or /sbin ( that is with prefix=/ )

I will make cmount installable at /bin.


> > I have fixed some of the path issues in the CVS by removing the path and
> > just specifying the binary . ie instead of /usr/sbin/cmount i used
> > cmount. If it is not advisable to do the above please feel free to
> > modify.
> 
> It's not a problem as long as the PATH variable is guaranteed to contain
> the command's path. Just to be safe, the PATH variable should be set at
> the top of a script if any commands outside of /bin are being called.
> 
Now that it is going to be in /bin i guess it is ok ?

> BTW, does your new Cluster Tools build system support installing into a
> UML root image? I remember there were a few special things that needed
> to be done, like installing a pre-written /etc/clustertab.
> 

I guess the $DESTDIR should help in getting that. I have  taken  care 
to install all the local installation ( scripts and conf files  ) under
$DESTDIR/$prefix. So setting the DESTDIR with uml root should work .But 
I haven't tested  the above.

For installing clustertab one need to run configre_cluster. I haven't
made it as a part of cluster-tools installation. 


> -Brian
> 
> 

-aneesh