Posted by: sabbour on: April 19, 2011
I came across some packages compiled for 32-bit, like Adobe Air that I needed to install on my 64-bit ubuntu, the following commands will fix the flags on the .deb package to force install it on a 64-bit system.
Note that it the converted package might install but not work correctly, so you are at luck whether it will work after that or not.
cd ~/Downloads
mkdir tmp
dpkg-deb -x package_i386.deb tmp
dpkg-deb --control package_i386.deb tmp/DEBIAN
sed -i "s/i386/all/" tmp/DEBIAN/
dpkg -b tmp package_64.deb
sudo dpkg -i package_64.deb