[maemo-developers] [maemo-developers] dpkg blues

[From: Vladislav Grinchenko]

Hi,

I am trying to build arm debian package of libsigc++ installable
on nokia 770. dpkg-buildpackage builds it just fine:

% dpkg-buildpackage -rfakeroot  -uc -us -sa -D  
% ls

libsigc++-2.0-0c2a_2.0.16-2_arm.deb

However, in order for me to use AppInstaller, I have to make it
dependable on pseudo-package maemo:

"... instead, it uses a database of its own that only contains the
installed application packages and a fake maemo package that represents
the rest of the system. 

This means that your package can not usefully depend on libgtk2.0-0,
say. You should only depend on other application packages that are
installed with the Application Installer. You should also depend on the
fake maemo package to ensure that your package is only installable by
the Application Installer."

So, I made it dependable on maemo:

debian/control:
-------------------------------------------------
Source: libsigc++-2.0
Section: devel
Priority: optional
Maintainer: Daniel Burrows <dburrows at debian.org>
Standards-Version: 3.6.2.0
Build-Depends: debhelper (>=4.0.0), m4, g++ (>= 3:3.2.0)
                                                                                
Package: libsigc++-2.0-0c2a
Section: libs
Depends: maemo
Architecture: any
Description: type-safe Signal Framework for C++ - runtime
 This library implements a full callback system for use in widget
 libraries, abstract interfaces, and general programming. It provides
 the ability to connect an abstract callback to a class method,
 function, or function object, and contains adaptor classes for
 connection of dissimilar callbacks.
 .
 These are the runtime files for libsigc++, needed only if you wish to
 run software which depends on
it.                                                                                 -------------------------------------------------

However, installing it both on 770 and in scratchbox SDK_ARM fails
bitterly:

% fakeroot
# app-installer-tool install libsigc++-2.0-0c2a_2.0.16-2_arm.deb 

Selecting previously deselected package libsigc++-2.0-0c2a.
(Reading database ... 27 files and directories currently installed.)
Preparing to replace libsigc++-2.0-0c2a 2.0.16-2 (using
libsigc++-2.0-0c2a_2.0.16-2_arm.deb) ...
Unpacking replacement libsigc++-2.0-0c2a ...
dpkg (subprocess): failed to chroot to `/var/lib/install': Operation not
permitted
dpkg: warning - old post-removal script returned error exit status 2
dpkg - trying script from the new package instead ...
dpkg (subprocess): failed to chroot to `/var/lib/install': Operation not
permitted
dpkg: error processing libsigc++-2.0-0c2a_2.0.16-2_arm.deb (--install):
 subprocess new post-removal script returned error exit status 2
dpkg (subprocess): failed to chroot to `/var/lib/install': Operation not
permitted
dpkg: error while cleaning up:
 subprocess post-removal script returned error exit status 2
Errors were encountered while processing:
 libsigc++-2.0-0c2a_2.0.16-2_arm.deb
failed
Installation of libsigc++-2.0-0c2a_2.0.16-2_arm.deb failed, removing
package libsigc++-2.0-0c2a.
dpkg: error processing libsigc++-2.0-0c2a (--purge):
 Package is in a very bad inconsistent state - you should
 reinstall it before attempting a removal.
Errors were encountered while processing:
 libsigc++-2.0-0c2a
Removing failed!
-------------------------------------------------------------------

Can someone explain to me why I get this error?

	failed to chroot to `/var/lib/install'

thanks in advance,
-Vlad
-- 
_____________________________________________________________
Vladislav Grinchenko       http://home.comcast.net/~3rdshift/
                                 e-mail: 3rdshift at comcast.net
                                                   
      Focus on quality, and productivity will follow.
_____________________________________________________________