As
announced back in December, Google stopped supporting Google Chrome on 32-bit Linux starting this month. Users running a 32bit Linux distribution are advised to stop using Google Chrome because, while it will continue to work, it will no longer receive any updates (including no security fixes).
The 32-bit build configurations for Chromium continues to be supported, so you can still use Chromium browser on 32-bit Linux distributions.
Because the official Google Chrome repository no longer provides 32-bit packages, 64-bit Ubuntu/Debian users will notice an error when updating the software sources, which looks as follows:
Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release
Unable to find expected entry 'main/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)
Some index files failed to download. They have been ignored, or old ones used instead.
To fix this error on Ubuntu/Debian 64-bit, the repository must be specifically set for 64-bit only – this can be done by adding “[arch=amd64]” after “deb” in the /etc/apt/sources.list.d/google-chrome.list file. To do this automatically, you can use the following command:
sudo sed -i -e 's/deb http/deb [arch=amd64] http/' "/etc/apt/sources.list.d/google-chrome.list"
On 32-bit, you should remove the repository and stop using Google Chrome since it won’t receive any security updates:
sudo rm /etc/apt/sources.list.d/google-chrome.list
sudo apt-get remove google-chrome
thanks to darkfur93 @ reddit for the info (and to Bruce Ingalls for the tip)

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