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    <p>You need not chroot after initializing scratchbox2!. What you expect can be achieved using the following procedure: </p> <p>Make sure you have a cross compiling tools set up on the host system. Assuming you are on a linux host (Ubuntu), you can install one by using:<br> <code>sudo apt-get install gcc-arm-linux-gnueabihf</code> (hard float) OR<br> <code>sudo apt-get install gcc-arm-linux-gnueabi</code> </p> <p>If you are on a different host machine or you have a different tool-chain for cross compiling like codesourcery's toolchain, just make sure you install the appropriate version (hardfloat/soft float) and export the path of the compiler to the $PATH and note down the name (prefix). </p> <p>Make sure you have Qemu installed.<br> Since you have already installed scratchbox2, assuming the path to the copy of your Rapberrypi's rootfs on the host pc is stored in the variable $raspirootfs,<br> <code>cd $raspirootfs</code><br> Now initialise sb2 using:<br> <code>sb2-init raspberrypi arm-linux-gnueabi-gcc</code><br> Where <code>raspberrypi</code> is just a name for the target configuration. replace <code>arm-linux-gnuabi-gcc</code> with your cross compiler prefix.<br> If this is your first target configuration (if this is the first time your are running sb2-init), you can start sb2 with the default target configuration by entering:<br> <code>sb2 -eR</code><br> This should give you a prompt like:<br> <code>[SB2 emulate raspberrypi] user@pc #</code><br> Now the sb2 is in emulate mode and not in normal mode and it will try to stay away from your host binaries and executes the binaries in your $raspirootfs using qemu.<br> Enter <code>sb2-show path /etc/apt</code> in the terminal to see how /etc/apt is mapped. It should show something like <code>/etc/apt --&gt; $raspirootfs/etc/apt</code> (and not the host system's /etc/apt).<br> <strong>To Install into emulated system:</strong><br> Just do as you would on you host system. Example:<br> <code>apt-get install build-essential</code><br> <strong>To cross compile some source:</strong><br> <code>cd sourcedir</code><br> <code>sb2 ./configure</code><br> <code>sb2 make -jN</code><br> <code>sb2 make install DESTDIR=$raspirootfs</code> </p> <p>For those of you trying to set up a cross compiling environment using scratchbox2, I have made a post here :<a href="http://praveenp.com/setting-up-a-cross-compiling-environment-to-build-linux-applications-for-embedded-targets/" rel="nofollow noreferrer">http://praveenp.com/setting-up-a-cross-compiling-environment-to-build-linux-applications-for-embedded-targets/</a> . For cross compiling using chroot, you can refer to this post :<a href="http://praveenp.com/setting-up-an-environment-using-chroot-for-developing-applications-for-embedded-targets/" rel="nofollow noreferrer">http://praveenp.com/setting-up-an-environment-using-chroot-for-developing-applications-for-embedded-targets/</a></p>
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    1. COThanks, I managed to get it working a few weeks ago for powerpc and raspberry pi using debootstrap and sb2 -eR. There were a few tricks involved to convince apt-get to work. The main trick was to use debootstrap to create a tar, install from the tar using --foreign, untar the tar created by the first step to get all the debs in /var/cache/apt/* (I forget the exact path) and then run dpkg --force-depends * in the directory with all the deb packages within sb2 -eR. It is a bit ugly but after these steps it is a fully functionaly environment.
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    2. COThe compilers are a bit slow because they are run through qemu-arm but it works. I can put up a blog post somewhere if anyone wants the detailed steps.
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    3. COI have updated my answer with links to blog posts detailing the steps involved for cross compiling.
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