Well, all Gentoo releases are 2.2. Since Gentoo is not a distribution that has releases (i.e. In stepped increments), you won't find that around. Gentoo is a rolling release, which means all packages are continuously updated, there's no global system version like Ubuntu or Fedora. In short /etc/gentoo_release is irrelevant of the system «version». What you want probably is a Gentoo distribution with the same kernel sources.
Bear in mind that such an old kernel may or may not work with recent system packages such as udev, bluetooth. Expect some recent packages a) require a recent kernel version and b) wouldn't even compile otherwise. Fact for 2.6.32 no longer are available: • the oldest versions of are 3.2.68, just like the vanilla kernel; • the only (publicly available) kernel source tree that includes 2.6.32 if. You'll have to try. As per my own experience, I have seen not too many differences between a system that can run a 3.2 kernel and one with 2.6.32 so with a little luck and a good deal of work. Fortunate youth irie state of mind zip. Just keep in mind that, which correspond to the installed kernel source tree.
Unlike other linux distros, you don't just get a Gentoo iso, hit setup and sit back, having a coffee, while setup does everything. Instead, you grab a stage and start building and compiling you OS. Luckily, for those who only need to get a feeling of Gentoo, there's a live release from time to time (already compiled and put together). In your case, you either grab a stage and start building around the kernel release you need (2.6.32), or get the oldest live available (dated October 2009) based on kernel 2.6.30 from (link for amd64, but have a look around, you'll find it for other archs also). So you don't actually want 2.2 since that's fairly meaningless.
Gentoo Linux is available free over the Internet. Minimal Installation CD 2019-02-28 259 MiB Hybrid ISO (LiveDVD) 2016-07-04 2 GiB Admin CD 2019-02-28. Torrent, Gentoo-Linux-livedvd-x86-amd64-32ul-20160704.torrent. Gentoo minimal 64bit download. Distfiles, install-amd64-minimal-20170309.iso, 261 MB.
If you want the exact same setup, you can migrate and existing setup. Is a rough guide.
So long as the image you want copied isn't using options that your hardware doesn't support. Other sorts of images can work, that advantage of the above guide is that you can do it from within the install. Not exactly hassle free, you'll have to ch root in after extraction and do some setup.
Not easy, but not too difficult if you've done an install a few times, process is basically the same. The image of the hosting company may be paravirtualized, but the good news is kernel ABI is stable, so you shouldn't have any issues configuring a newer kernel to run the image.